SlideShare a Scribd company logo
1 of 28
School Name : Ramakrishna Mission Vidyalaya, 
Viveknagar, Tripura, West 
Affiliated to CBSE, New Delhi 
TTooppiicc:: NNuuttrriittiioonn iinn PPllaannttss.. 
NCERT Based Curriculumn. 
Target Group : Class VII students 
Digital eContent Submitted by: 
Name of the Teacher : Mr. Uday Pal(PGT) 
Year: 2014-15
Page  2 
Nutrition in Plants 
Food is the most important and 
basic thing for life. Carbohydrates, 
proteins, fats, vitamins and 
minerals are the components of 
food. These components are 
necessary for all living beings. All 
plants and animals require food for 
their growth and getting energy. 
The process of utilization of food 
by an animal to obtain energy for 
growth and development is known 
as nutrition. Plants make their 
food themselves but animals 
cannot. Hence, animals depend 
directly or indirectly on the plant.
IQ Test: 
1. What are the components of food? 
Answer – Carbohydrates, proteins, fats, vitamins and minerals are the 
components of food. 
2. What is nutrition? 
Answer – The process of utilization of food by a living organism to obtain 
energy is called nutrition. 
3. Why is need of nutrition? 
Answer – Animals do not make their food themselves which plants do. Animals 
eat plants or plant eating animals. Hence, animals are directly or indirectly 
depend on plants. 
Page  3
Page  4 
Mode of nutrition in plant 
Autotrophic Nutrition - 
Auto means self and trophos means 
nourishment. Plants are called autotrophs 
because they make their food themselves. The 
making of food for themselves is called the 
Autotrophic nutrition. Autotrophic nutrition is 
found in green plants. 
Autotropic: (auto = self; 
Trophos = nourishment)
Heterotrophic Nutrition – 
The word Heterotrophic is the combination of two words i.e. Hetero + 
Trophos. Hetero means ‘others’ and ‘trophos’ means nourishment. If 
organisms depend on others for their food, it is called the Hetetrophic 
Nutrition. 
Animals cannot make their food themselves. They depend for food 
upon plants. Therefore, nutrition in animals is called Hetetrophic 
Nutrition. Animals are known as Heterotrophs. 
Page  5
Saprotrophic Nutrition – 
The taking of nutrients by organism from dead and decaying 
matter in the form of solution is called the saprotrophic nutrition. 
The organisms which use saprotrophic mode of nutrition are 
called saprotrophs. For example: fungi. 
Page  6
Check your answer: 
Questions – 1: What is autotroph? 
Answer- Organisms that make their food themselves are called autotrophs. 
Question-2: What is autotrophic mode of nutrition? 
Answer: The mode of nutrition in which the organism makes its own food is called autotrophic mode 
of nutrition. 
Question -3: Give some example of autotrophs. 
Answer: All green plants, such as grass, mango, bougainvillea, etc. are the examples of autotrophs. 
Question-4: What is heterotrophic mode of nutrition? 
Answer: The mode of nutrition in which an organism takes food from another organism is called 
heterotrophic mode of nutrition. The nutrition in animals and non-green plants is the example of 
heterotrophic mode of nutrition. 
Question-5: Give examples of Heterotrophs. 
Answer: Animals and non green plants are the examples of heterotrophs. 
Question-6: What is saprotrophs? 
Answer: Plants which get their nutrition from dead or decaying plants in liquid form are called 
saprotrophs. 
Page  7
Photosynthesis - Food Making Process in Plants 
Page  8 
The process of making of food by green 
plants in the presence of sunlight and 
chlorophyll is known as photosynthesis. 
Photosynthesis is the combination of two 
words- Photo + Synthesis. ‘Photo’ means 
light and ‘Synthesis’ means to make. 
Process of food making in green plants: 
Green plants make their food themselves. 
Green leaves make food from Carbon 
dioxide and water in the presence of 
sunlight and chlorophyll. 
Hence, for taking place of photosynthesis 
carbon dioxide, water and sunlight must be 
reached at the green leaves in addition to 
presence of chlorophyll.
A section through a leaf: 
Leaves have several tiny pores like structure on its lower surface. This is called 
stomata through which leaves absorb carbon dioxide from air. Water is 
transported to the leaves through hair like pipelines from the roots. These 
pipelines are present throughout the plant, i.e. from roots to branches and 
leaves. These pipe-lines are known as Xylem. Xylem is a type of tissues. 
Chlorophyll, a green pigment, is found in green leaves. Chlorophyll absorbs 
sunlight and gives energy. Chlorophyll absorbs sunlight, carbon dioxide and 
water and convert them to carbohydrate and oxygen. Carbohydrate is used as 
food and oxygen is emitted out to atmosphrere.This whole process of making 
food by plants is called photosynthesis. 
Page  9
Following are necessary for photosynthesis to be 
taken place: 
• Presence of sunlight 
• Presence of Chlorophyll 
• Presence of Water 
• Presence of carbon-dioxide 
Photosynthesis in Algae – 
Green patches in ponds or near the stagnant water can be 
seen easily. These green patches are living organism called 
algae. Algae are plants. Often algae grow near the shallow 
waterlogged areas such as near tube-wells, taps, etc. One 
may slip over it. Algae look green because of presence of 
Chlorophyll. Algae prepare their own food by the process of 
photosynthesis. 
10 
Make Presentation much more fun
SSoouurrccee:: YYoouuttuubbee 
Page  11 Source : Youtube
F.A.Q: 
Questions- 1 - What is photosynthesis? 
Answer- The process of making food in green plants in the presence of sunlight is 
known as photosynthesis. 
Questions- 2 - What are the essentials factors for the photosynthesis? 
Answer - Carbon dioxide, water, chlorophyll and sunlight are essentials factors 
for the photosynthesis to take place. 
Question – 3 - What is chlorophyll? 
Answer- Chlorophyll is the green pigment present in green leaves. 
Question – 4 – Why do leaves look green? 
Answer – Leaves look green because of the presence of chlorophyll, which is a 
green pigment. 
Questions- 5: What is the function of chlorophyll? 
Answer - Chlorophyll absorbs the sunlight for photosynthesis. 
12 
Make Presentation much more fun
Question – 6: What are the final products made after 
photosynthesis? 
Answer- Glucose and oxygen are the final products after 
photosynthesis. 
Questions – 7: What are stomata? 
Answer- The small pores present on the lower surface of leaf, 
are called stomata. 
Questions- 8: What is function of stomata? 
Answer - Stomata absorb carbon dioxide from air for 
photosynthesis. 
Question - 9: What is the ultimate source of energy? 
Answer – Sun is the ultimate source of energy. 
Question – 10: How water is transported to the leaves? 
Answer: Water is transported to the leaves through pipe like 
structures from the roots of plant. These pipe-like structures 
are present from root to leaves through branches throughout. 
F.A.Q:
Synthesis of plant food other than carbohydrate: 
Plants need proteins and fats besides the carbohydrate. 
Proteins are nitrogenous substances which contain nitrogen. 
Although nitrogen is present in abundance in atmosphere, 
but plant cannot absorb atmospheric nitrogen. Plant gets 
nitrogen from soil. Certain types of bacteria called rhizobium, 
are present in soil. They convert gaseous nitrogen into 
usable form and release it into the soil. Plants absorb these 
soluble forms of nitrogen along with water and other 
minerals through their roots. 
Sometimes farmers add nitrogenous fertilizer to their field to 
fulfill the need of nitrogen. In this way plants gets fulfillment 
of nitrogen along with other nutrients. After the fulfillment of 
all nutrients plants synthesise proteins and fats. 
Page  14
F.A.Q: 
Question: 1 – What are the nutrients other than carbohydrates which are required 
by plants? 
Answer: Proteins and fats are the nutrients; other than carbohydrates; which are 
required by plants. 
Question: 2 – In which form do plants absorb nitrogen? 
Answer: Plants absorb soluble form of nitrogen. 
Question: 3 – Why do farmers add nitrogenous fertilizers to the soil? 
Answer: Farmers add nitrogenous fertilizers to the soil to fulfill the requirement of 
nitrogen of the plants. Nitrogen is necessary to synthesise proteins. 
Question: 4 – Which microorganism help to provide nitrogen to the plants? 
Answer: A certain type of bacteria called rhizobium help to provide nitrogen to the 
plants. 
Question: 5 – How do plants absorb nutrients other than carbohydrates from the 
soil? 
Answer: Other nutrients are available in the soil in the form of minerals. Plants 
absorb these minerals from the soil; along with water. 
Page  15
MODES OF NUTRITION IN NON GREEN PLANTS - 
HETEROTROPHIC MODE OF NUTRITION IN PLANTS-Page 
Some plants do not have the chlorophyll. Hence, they cannot 
synthesise their food by themselves. Such plants are known 
as non green plants. They depend on other organisms for 
food. Such plants use the heterotrophic mode of nutrition. 
Some of them are called parasite. A parasite is an organism 
which lives on or inside the body of another organism and 
takes shelter and food from that organism. The host; in this 
case; is always at loss. 
Plants that do not have chlorophyll are called non-green 
plants. Plants, which live on other plants for food, are called 
parasitic plants. 
 16
F.A.Q : 
Question: 1 – What do you understand by parasitic plants? 
Answer: A plant which lives on another plant and takes nutrients is called a 
parasitic plant. 
Question: 2 – Give some example of parasitic plants. 
Answer: Cuscuta and mistletoe 
Question: 3 – Why some plants are called parasites? 
Answer: Some plants are unable to prepare their own food and need to take food 
from another plant. Hence, they are called parasites. 
Question: 4 – What is the mode of nutrition in non-green plants? 
Answer: Non-green plants show heterotrophic mode of nutrition. 
Question: 5 – What do you understand by non-green plants? 
Answer: A plant which lacks chlorophyll is called non-green plant. 
Question: 6 – What do you understand by host? 
Answer: An organism which provides shelter and nutrition to another organism is 
called a host. 
Question: 7 – What is partial parasite? 
Answer: A parasite which depends for some of the nutrients; on another 
organism; is called a partial parasite. 
Question: 8 – Give example of partial parasitic plants? 
Answer: Misteltoe 
Page  17
Insectivorous Plant – 
Page  18 
Some plants eat insects. Such plants are 
called insectivorous plants. They trap and 
digest the insects. Pitcher plant is the 
example of an insectivorous plant. In 
pitcher plant the leaf is modified to form a 
pitcher like structure. The bright colour of 
the pitcher makes it very attractive to 
insects. Inside the pitcher; there are 
several hair-like structures. These hairs 
direct the trapped insects downwards. 
When an insect sits on the pitcher of the 
plant, the lid closes and the insects get 
trapped inside the pitcher. The insect is 
then digested by the enzymes secreted by 
the cells of the plants.
Cause of Eating of Insects by Plants: 
Page  19 
The soil of marshy land is deficient in 
nitrogen. Plants living in marshy areas 
do not get nitrogen from the soil. Their 
nitrogen need is fulfilled by sucking 
the juice of insects. Venus flytrap, 
utricularia, drosera and Rafflesia are 
the other examples of insectivorous 
plants.
F.A.Q : 
Question: 1 – What is an insectivorous plant? 
Answer: A plant which fulfills its nitrogenous needs by eating insects is called 
an insectivorous plant. 
Question: 2 – Give an example of insectivores plant? 
Answer: Pitcher plant, Venus Fly trap, Bladderwort, Drosera, Rafflesia 
Question: 4 – Why does a plant eat insects? 
Answer: Plants living in marshy areas do not get nitrogen from the soil. To fulfill 
their nitrogenous need, they need to eat insects. 
Question: 5 – Write a brief note on pitcher plants? 
Answer: In a pitcher plant, the leaf is modified into a pitcher like structure. The 
pitcher is complete with a lid. The inside of pitcher is full of hair-like structures. 
The pitcher is used to trap insects which may fall in it. 
Page  20
Saprotrophs : 
Page  21 
Saprtrophs are non-green plants e.g. 
Agaricus (Mushroom) fungi, yeasts and 
bacteria. Saprotrophs get their food 
from dead or decaying organic matters. 
They grow on decaying organic matters 
such as cow-dung, wood, bread, etc. 
Saprotrophs secrete digestive juice 
over the decaying materials and absorb 
nutrients from them. This is called 
Saprotrophic Mode of Nutrition. Such 
plants are called saprotophs.
Symbiosis or Mutualism – 
Page  22 
Symbiosis is the combination of two 
Greek words ‘Sym’ means ‘with’ and 
‘biosis’ means ‘living’, which means 
living together. In symbiosis or 
mutualism two different types of 
organisms live and work together for 
their mutual benefit from each other. 
They share shelter and nutrients, e.g. 
Lichens. Lichens are composite 
organisms composed of fungus and 
alga. Fungus is a saprophyte and alga 
is an autotroph. The Fungus supplies 
water and minerals to the cells of the 
alga while the alga supplies food; 
prepared by photosynthesis. 
A bird sitting on the back of a rhino is 
an example of symbiosis. The bird gets 
worms to eat, while the rhino gets rid of 
those worms.
Replenishment of Nutrients in Soil - 
Some fungus live in the roots of the plans. Roots of the plants provide 
shelter and food to the fungus while fungus provides important nutrients 
to the plants. 
Because of continuous farming nutrients keep declining in the soil. 
Hence, to replenish those nutrients fertilizers are added to the soil. 
Plants require a lot of nitrogen to grow and to be healthy. Although, a lot 
of nitrogen is available in the atmosphere, but plants cannot absorb 
nitrogen in gaseous form. There is a bacterium called Rhizobium, which 
lives in the root nodules of legumes, such as gram, moong, etc. 
These bacteria can absorb nitrogen from the atmosphere and make it 
available for the plants. Rhizobium cannot make its food, hence, it 
provides nitrogen to the legumes and in return legumes provide them 
food and shelter. This is an example of symbiotic relationship. This has 
great importance for farmers. Fields in which leguminous plants are 
grown from time to time, do not need addition of nitrogenous fertilizers. 
Page  23
F.A.Q : 
Question: 1 – What is the meaning of word ‘Symbiosis’? 
Answer: It is a relationship between two organisms in which both the organisms 
benefit each other. 
Question: 2 – What is Lichen? 
Answer: The lichen is a composite organism formed because of symbiosis of 
algae and fungi. 
Question: 3 – Give an example of symbiotic relationship. 
Answer: A small bird; called plover; cleans the crocodile’s teeth. The crocodile 
keeps its mouth open and the bird takes out meat fibres stuck between the teeth. 
The bird gets food in lieu of providing dentist’s services to the crocodile. 
Question: 4 – How do nutrients get replenished in the soil? 
Answer: There are two main means through which nutrients get replenished in the 
soil. One of them is the nitrogen fixation in soil. Nitrogen fixation replenishes 
nitrogenous nutrients in the soil. Another mean is decomposition of dead remains 
of plants and animals (or farm waste). Decomposition of dead remains 
replenishes various other nutrients in the soil. 
Page  24
FF..AA..QQ :: 
Question: 5 – What is Rhizobium? 
Answer: Rhizobium is a bacterium. 
Question: 6 – What is the function of Rhizobium? 
Answer: Rhizobium helps leguminous plants in nitrogen fixation in soil. 
Question: 7 – How does Rhizobium help farmers? 
Answer: By helping in nitrogen fixation, rhizobium increases soil fertility and thus helps 
farmers. 
Question: 8 – Why do farmers prefer to sow leguminous plants? 
Answer: Leguminous plants carry out nitrogen fixation in soil and thus improve soil 
fertility. 
Question: 9 – In which form do plants absorb nitrogen? 
Answer: Plants absorb nitrogen in the form of nitrates. 
Page  25
e-Resource: 
http://www.ncagr.gov/cyber/kidswrld/plant/http://scienceinvestigators.wikispaces.com/http://www.ictfoundationindia.org 
Page  26
28 
Thank You 
Make Presentation much more fun

More Related Content

What's hot

7. 12. Reproduction in plants - Part 1
7. 12. Reproduction in plants - Part 17. 12. Reproduction in plants - Part 1
7. 12. Reproduction in plants - Part 1
TeachWithIdea
 

What's hot (20)

Chemical effects of electric current
Chemical effects of  electric currentChemical effects of  electric current
Chemical effects of electric current
 
Chapter - 1, Crop Production and Management, Science, Class 8
Chapter - 1, Crop Production and Management, Science, Class 8 Chapter - 1, Crop Production and Management, Science, Class 8
Chapter - 1, Crop Production and Management, Science, Class 8
 
Class -7 Science Chapter-1 nutrition in plants,
Class -7 Science Chapter-1 nutrition in plants,Class -7 Science Chapter-1 nutrition in plants,
Class -7 Science Chapter-1 nutrition in plants,
 
Chapter 01 crop production & management
Chapter 01   crop production  & managementChapter 01   crop production  & management
Chapter 01 crop production & management
 
FOOD: WHERE DOES IT COME FROM? -CLASS VI (CBSE)
FOOD: WHERE DOES IT COME FROM? -CLASS VI (CBSE)FOOD: WHERE DOES IT COME FROM? -CLASS VI (CBSE)
FOOD: WHERE DOES IT COME FROM? -CLASS VI (CBSE)
 
Chapter 02 microorganisms friend & foe
Chapter 02   microorganisms  friend & foe Chapter 02   microorganisms  friend & foe
Chapter 02 microorganisms friend & foe
 
07. Weather climate and Adaptations of Animals to Climate by Dilip Kumar Chandra
07. Weather climate and Adaptations of Animals to Climate by Dilip Kumar Chandra07. Weather climate and Adaptations of Animals to Climate by Dilip Kumar Chandra
07. Weather climate and Adaptations of Animals to Climate by Dilip Kumar Chandra
 
Chapter - 1, Nutrition in Plants, Science, Class 7
Chapter - 1, Nutrition in Plants, Science, Class 7 Chapter - 1, Nutrition in Plants, Science, Class 7
Chapter - 1, Nutrition in Plants, Science, Class 7
 
Fun with magnets class 6
Fun with magnets class 6Fun with magnets class 6
Fun with magnets class 6
 
7. 12. Reproduction in plants - Part 1
7. 12. Reproduction in plants - Part 17. 12. Reproduction in plants - Part 1
7. 12. Reproduction in plants - Part 1
 
Chapter – 4 heat class_7
Chapter – 4  heat   class_7Chapter – 4  heat   class_7
Chapter – 4 heat class_7
 
Living organisms & their surroundings
 Living organisms & their surroundings Living organisms & their surroundings
Living organisms & their surroundings
 
18. Wastewater Story by Dilip Kumar Chandra
18. Wastewater Story by Dilip Kumar Chandra18. Wastewater Story by Dilip Kumar Chandra
18. Wastewater Story by Dilip Kumar Chandra
 
microorganisms: friend and foe class 8(vishakha)
microorganisms: friend and foe class 8(vishakha)microorganisms: friend and foe class 8(vishakha)
microorganisms: friend and foe class 8(vishakha)
 
Getting to know plants
Getting to know plantsGetting to know plants
Getting to know plants
 
Cell class 8 presentation
Cell class 8 presentationCell class 8 presentation
Cell class 8 presentation
 
reproduction in animals class 8
reproduction in animals class 8reproduction in animals class 8
reproduction in animals class 8
 
sorting materials into groups class 6 ppt
sorting materials into groups class 6 pptsorting materials into groups class 6 ppt
sorting materials into groups class 6 ppt
 
Chapeter 8: body movements
Chapeter 8: body movementsChapeter 8: body movements
Chapeter 8: body movements
 
Chapter - 10, Respiration in Organisms, Science, Class 7
Chapter - 10, Respiration in Organisms, Science, Class 7Chapter - 10, Respiration in Organisms, Science, Class 7
Chapter - 10, Respiration in Organisms, Science, Class 7
 

Viewers also liked

nutrition in plants
nutrition in plantsnutrition in plants
nutrition in plants
hiratufail
 
Heterotrophic nutrition
Heterotrophic nutritionHeterotrophic nutrition
Heterotrophic nutrition
mkavita72
 
General structures of terrestrial communities
General structures of terrestrial communitiesGeneral structures of terrestrial communities
General structures of terrestrial communities
Erros Que
 
St Michael's Catholic School Archibull Prize 2011 entry Wool
St Michael's Catholic School Archibull Prize 2011 entry Wool St Michael's Catholic School Archibull Prize 2011 entry Wool
St Michael's Catholic School Archibull Prize 2011 entry Wool
Art4Agriculture
 

Viewers also liked (20)

nutrition in plants
nutrition in plantsnutrition in plants
nutrition in plants
 
Mode of Nutrition in Plants
Mode of Nutrition in PlantsMode of Nutrition in Plants
Mode of Nutrition in Plants
 
Heterotrophic nutrition
Heterotrophic nutritionHeterotrophic nutrition
Heterotrophic nutrition
 
Plant nutrition
Plant nutritionPlant nutrition
Plant nutrition
 
Nutrition in plants
Nutrition in plantsNutrition in plants
Nutrition in plants
 
HETEROTROPHIC NUTRITION IN PLANTS
HETEROTROPHIC NUTRITION IN PLANTSHETEROTROPHIC NUTRITION IN PLANTS
HETEROTROPHIC NUTRITION IN PLANTS
 
Photosynthesis
PhotosynthesisPhotosynthesis
Photosynthesis
 
Plant Nutrition
Plant NutritionPlant Nutrition
Plant Nutrition
 
matter in our surroundings
matter in our surroundingsmatter in our surroundings
matter in our surroundings
 
Integrated Science M1 plants and the making of food
Integrated Science M1 plants and the making of food Integrated Science M1 plants and the making of food
Integrated Science M1 plants and the making of food
 
General structures of terrestrial communities
General structures of terrestrial communitiesGeneral structures of terrestrial communities
General structures of terrestrial communities
 
Energy Pyramid
Energy PyramidEnergy Pyramid
Energy Pyramid
 
Matter in our surroundings
Matter in our surroundingsMatter in our surroundings
Matter in our surroundings
 
Energy pyramid lesson
Energy pyramid lessonEnergy pyramid lesson
Energy pyramid lesson
 
Ecology Report
Ecology ReportEcology Report
Ecology Report
 
St Michael's Catholic School Archibull Prize 2011 entry Wool
St Michael's Catholic School Archibull Prize 2011 entry Wool St Michael's Catholic School Archibull Prize 2011 entry Wool
St Michael's Catholic School Archibull Prize 2011 entry Wool
 
7 fibre to fabric
7   fibre to fabric7   fibre to fabric
7 fibre to fabric
 
Lifeprocesses 120620100700-phpapp01
Lifeprocesses 120620100700-phpapp01Lifeprocesses 120620100700-phpapp01
Lifeprocesses 120620100700-phpapp01
 
Nutrition in plants
Nutrition in plantsNutrition in plants
Nutrition in plants
 
Unit 2 The nutrition function
Unit 2 The nutrition functionUnit 2 The nutrition function
Unit 2 The nutrition function
 

Similar to Nutrition in plants, Class- VII, NCERT Based

Sedlcarter
SedlcarterSedlcarter
Sedlcarter
hdahedo
 
Fotosintesis
FotosintesisFotosintesis
Fotosintesis
franmuje
 

Similar to Nutrition in plants, Class- VII, NCERT Based (20)

Nutrition in Plants
Nutrition in PlantsNutrition in Plants
Nutrition in Plants
 
class 7 science nutrition in plants.pptx
class 7 science nutrition in plants.pptxclass 7 science nutrition in plants.pptx
class 7 science nutrition in plants.pptx
 
Science project.pptx
Science project.pptxScience project.pptx
Science project.pptx
 
Nutrition in plants
Nutrition in plantsNutrition in plants
Nutrition in plants
 
Life process 2
Life process 2Life process 2
Life process 2
 
Nutrition in plants (class vii)
Nutrition in plants (class vii)Nutrition in plants (class vii)
Nutrition in plants (class vii)
 
Nutrition in Plants Class 7 Chapter 1
Nutrition in Plants Class 7 Chapter 1Nutrition in Plants Class 7 Chapter 1
Nutrition in Plants Class 7 Chapter 1
 
7th SCI 4. Nutrition in Living Organisms.pptx
7th SCI 4. Nutrition in Living Organisms.pptx7th SCI 4. Nutrition in Living Organisms.pptx
7th SCI 4. Nutrition in Living Organisms.pptx
 
NUTRITION IN PLANTS-1 (CLASS-VII) CBSE
NUTRITION IN PLANTS-1 (CLASS-VII) CBSENUTRITION IN PLANTS-1 (CLASS-VII) CBSE
NUTRITION IN PLANTS-1 (CLASS-VII) CBSE
 
01. nutrition in plant by dilip kumar chandra
01. nutrition in plant by dilip kumar chandra01. nutrition in plant by dilip kumar chandra
01. nutrition in plant by dilip kumar chandra
 
01. Nutrition in Plants by Dilip Kumar Chandra
01. Nutrition in Plants by Dilip Kumar Chandra01. Nutrition in Plants by Dilip Kumar Chandra
01. Nutrition in Plants by Dilip Kumar Chandra
 
Sedlcarter
SedlcarterSedlcarter
Sedlcarter
 
Fotosintesis
FotosintesisFotosintesis
Fotosintesis
 
VII-nutrition in plants
VII-nutrition in plantsVII-nutrition in plants
VII-nutrition in plants
 
Nutrients in plants
Nutrients in plants Nutrients in plants
Nutrients in plants
 
Chapter 1-exercise
Chapter 1-exerciseChapter 1-exercise
Chapter 1-exercise
 
Nutrition in plants
Nutrition in plantsNutrition in plants
Nutrition in plants
 
Class-7 science Chapter-1 Nutrition in plants
Class-7 science Chapter-1 Nutrition in plantsClass-7 science Chapter-1 Nutrition in plants
Class-7 science Chapter-1 Nutrition in plants
 
1nutritioninplants
1nutritioninplants1nutritioninplants
1nutritioninplants
 
Science.ppt
Science.pptScience.ppt
Science.ppt
 

More from Uday Pal

3. fibre to febric
3. fibre to febric3. fibre to febric
3. fibre to febric
Uday Pal
 
Basic computer fundamentals
Basic computer fundamentalsBasic computer fundamentals
Basic computer fundamentals
Uday Pal
 
Physical features of india
Physical features of indiaPhysical features of india
Physical features of india
Uday Pal
 
Nutrition in animals class vii
Nutrition in animals class viiNutrition in animals class vii
Nutrition in animals class vii
Uday Pal
 
Presentation on climate
Presentation on climatePresentation on climate
Presentation on climate
Uday Pal
 
Force & law
Force & lawForce & law
Force & law
Uday Pal
 
Physical features of india
Physical features of indiaPhysical features of india
Physical features of india
Uday Pal
 
Population
PopulationPopulation
Population
Uday Pal
 
The physical features of india by sourav rakshit
The physical features of india by sourav rakshitThe physical features of india by sourav rakshit
The physical features of india by sourav rakshit
Uday Pal
 
Using a protractor
Using a protractorUsing a protractor
Using a protractor
Uday Pal
 

More from Uday Pal (19)

Dengu fever final
Dengu fever finalDengu fever final
Dengu fever final
 
3. fibre to febric
3. fibre to febric3. fibre to febric
3. fibre to febric
 
Basic computer fundamentals
Basic computer fundamentalsBasic computer fundamentals
Basic computer fundamentals
 
Climate
ClimateClimate
Climate
 
Physical features of india
Physical features of indiaPhysical features of india
Physical features of india
 
Nutrition in animals class vii
Nutrition in animals class viiNutrition in animals class vii
Nutrition in animals class vii
 
Presentation on climate
Presentation on climatePresentation on climate
Presentation on climate
 
Force & law
Force & lawForce & law
Force & law
 
Physical features of india
Physical features of indiaPhysical features of india
Physical features of india
 
Population
PopulationPopulation
Population
 
The physical features of india by sourav rakshit
The physical features of india by sourav rakshitThe physical features of india by sourav rakshit
The physical features of india by sourav rakshit
 
Using a protractor
Using a protractorUsing a protractor
Using a protractor
 
Emergency preparedness
Emergency preparednessEmergency preparedness
Emergency preparedness
 
Students for Pre Stage
Students for Pre StageStudents for Pre Stage
Students for Pre Stage
 
Environmental pollution
Environmental pollutionEnvironmental pollution
Environmental pollution
 
Ttpb1 whystudyplants
Ttpb1 whystudyplantsTtpb1 whystudyplants
Ttpb1 whystudyplants
 
Habitats for plants and animals
Habitats for plants and animalsHabitats for plants and animals
Habitats for plants and animals
 
Flower
FlowerFlower
Flower
 
Classification of plants
Classification of plantsClassification of plants
Classification of plants
 

Recently uploaded

Jual Obat Aborsi Hongkong ( Asli No.1 ) 085657271886 Obat Penggugur Kandungan...
Jual Obat Aborsi Hongkong ( Asli No.1 ) 085657271886 Obat Penggugur Kandungan...Jual Obat Aborsi Hongkong ( Asli No.1 ) 085657271886 Obat Penggugur Kandungan...
Jual Obat Aborsi Hongkong ( Asli No.1 ) 085657271886 Obat Penggugur Kandungan...
ZurliaSoop
 

Recently uploaded (20)

Jual Obat Aborsi Hongkong ( Asli No.1 ) 085657271886 Obat Penggugur Kandungan...
Jual Obat Aborsi Hongkong ( Asli No.1 ) 085657271886 Obat Penggugur Kandungan...Jual Obat Aborsi Hongkong ( Asli No.1 ) 085657271886 Obat Penggugur Kandungan...
Jual Obat Aborsi Hongkong ( Asli No.1 ) 085657271886 Obat Penggugur Kandungan...
 
How to Give a Domain for a Field in Odoo 17
How to Give a Domain for a Field in Odoo 17How to Give a Domain for a Field in Odoo 17
How to Give a Domain for a Field in Odoo 17
 
Towards a code of practice for AI in AT.pptx
Towards a code of practice for AI in AT.pptxTowards a code of practice for AI in AT.pptx
Towards a code of practice for AI in AT.pptx
 
SOC 101 Demonstration of Learning Presentation
SOC 101 Demonstration of Learning PresentationSOC 101 Demonstration of Learning Presentation
SOC 101 Demonstration of Learning Presentation
 
Holdier Curriculum Vitae (April 2024).pdf
Holdier Curriculum Vitae (April 2024).pdfHoldier Curriculum Vitae (April 2024).pdf
Holdier Curriculum Vitae (April 2024).pdf
 
Google Gemini An AI Revolution in Education.pptx
Google Gemini An AI Revolution in Education.pptxGoogle Gemini An AI Revolution in Education.pptx
Google Gemini An AI Revolution in Education.pptx
 
REMIFENTANIL: An Ultra short acting opioid.pptx
REMIFENTANIL: An Ultra short acting opioid.pptxREMIFENTANIL: An Ultra short acting opioid.pptx
REMIFENTANIL: An Ultra short acting opioid.pptx
 
ICT Role in 21st Century Education & its Challenges.pptx
ICT Role in 21st Century Education & its Challenges.pptxICT Role in 21st Century Education & its Challenges.pptx
ICT Role in 21st Century Education & its Challenges.pptx
 
Exploring_the_Narrative_Style_of_Amitav_Ghoshs_Gun_Island.pptx
Exploring_the_Narrative_Style_of_Amitav_Ghoshs_Gun_Island.pptxExploring_the_Narrative_Style_of_Amitav_Ghoshs_Gun_Island.pptx
Exploring_the_Narrative_Style_of_Amitav_Ghoshs_Gun_Island.pptx
 
2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx
2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx
2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx
 
Sensory_Experience_and_Emotional_Resonance_in_Gabriel_Okaras_The_Piano_and_Th...
Sensory_Experience_and_Emotional_Resonance_in_Gabriel_Okaras_The_Piano_and_Th...Sensory_Experience_and_Emotional_Resonance_in_Gabriel_Okaras_The_Piano_and_Th...
Sensory_Experience_and_Emotional_Resonance_in_Gabriel_Okaras_The_Piano_and_Th...
 
Unit 3 Emotional Intelligence and Spiritual Intelligence.pdf
Unit 3 Emotional Intelligence and Spiritual Intelligence.pdfUnit 3 Emotional Intelligence and Spiritual Intelligence.pdf
Unit 3 Emotional Intelligence and Spiritual Intelligence.pdf
 
Food safety_Challenges food safety laboratories_.pdf
Food safety_Challenges food safety laboratories_.pdfFood safety_Challenges food safety laboratories_.pdf
Food safety_Challenges food safety laboratories_.pdf
 
On_Translating_a_Tamil_Poem_by_A_K_Ramanujan.pptx
On_Translating_a_Tamil_Poem_by_A_K_Ramanujan.pptxOn_Translating_a_Tamil_Poem_by_A_K_Ramanujan.pptx
On_Translating_a_Tamil_Poem_by_A_K_Ramanujan.pptx
 
Interdisciplinary_Insights_Data_Collection_Methods.pptx
Interdisciplinary_Insights_Data_Collection_Methods.pptxInterdisciplinary_Insights_Data_Collection_Methods.pptx
Interdisciplinary_Insights_Data_Collection_Methods.pptx
 
How to setup Pycharm environment for Odoo 17.pptx
How to setup Pycharm environment for Odoo 17.pptxHow to setup Pycharm environment for Odoo 17.pptx
How to setup Pycharm environment for Odoo 17.pptx
 
TỔNG ÔN TẬP THI VÀO LỚP 10 MÔN TIẾNG ANH NĂM HỌC 2023 - 2024 CÓ ĐÁP ÁN (NGỮ Â...
TỔNG ÔN TẬP THI VÀO LỚP 10 MÔN TIẾNG ANH NĂM HỌC 2023 - 2024 CÓ ĐÁP ÁN (NGỮ Â...TỔNG ÔN TẬP THI VÀO LỚP 10 MÔN TIẾNG ANH NĂM HỌC 2023 - 2024 CÓ ĐÁP ÁN (NGỮ Â...
TỔNG ÔN TẬP THI VÀO LỚP 10 MÔN TIẾNG ANH NĂM HỌC 2023 - 2024 CÓ ĐÁP ÁN (NGỮ Â...
 
Application orientated numerical on hev.ppt
Application orientated numerical on hev.pptApplication orientated numerical on hev.ppt
Application orientated numerical on hev.ppt
 
Beyond_Borders_Understanding_Anime_and_Manga_Fandom_A_Comprehensive_Audience_...
Beyond_Borders_Understanding_Anime_and_Manga_Fandom_A_Comprehensive_Audience_...Beyond_Borders_Understanding_Anime_and_Manga_Fandom_A_Comprehensive_Audience_...
Beyond_Borders_Understanding_Anime_and_Manga_Fandom_A_Comprehensive_Audience_...
 
NO1 Top Black Magic Specialist In Lahore Black magic In Pakistan Kala Ilam Ex...
NO1 Top Black Magic Specialist In Lahore Black magic In Pakistan Kala Ilam Ex...NO1 Top Black Magic Specialist In Lahore Black magic In Pakistan Kala Ilam Ex...
NO1 Top Black Magic Specialist In Lahore Black magic In Pakistan Kala Ilam Ex...
 

Nutrition in plants, Class- VII, NCERT Based

  • 1. School Name : Ramakrishna Mission Vidyalaya, Viveknagar, Tripura, West Affiliated to CBSE, New Delhi TTooppiicc:: NNuuttrriittiioonn iinn PPllaannttss.. NCERT Based Curriculumn. Target Group : Class VII students Digital eContent Submitted by: Name of the Teacher : Mr. Uday Pal(PGT) Year: 2014-15
  • 2. Page  2 Nutrition in Plants Food is the most important and basic thing for life. Carbohydrates, proteins, fats, vitamins and minerals are the components of food. These components are necessary for all living beings. All plants and animals require food for their growth and getting energy. The process of utilization of food by an animal to obtain energy for growth and development is known as nutrition. Plants make their food themselves but animals cannot. Hence, animals depend directly or indirectly on the plant.
  • 3. IQ Test: 1. What are the components of food? Answer – Carbohydrates, proteins, fats, vitamins and minerals are the components of food. 2. What is nutrition? Answer – The process of utilization of food by a living organism to obtain energy is called nutrition. 3. Why is need of nutrition? Answer – Animals do not make their food themselves which plants do. Animals eat plants or plant eating animals. Hence, animals are directly or indirectly depend on plants. Page  3
  • 4. Page  4 Mode of nutrition in plant Autotrophic Nutrition - Auto means self and trophos means nourishment. Plants are called autotrophs because they make their food themselves. The making of food for themselves is called the Autotrophic nutrition. Autotrophic nutrition is found in green plants. Autotropic: (auto = self; Trophos = nourishment)
  • 5. Heterotrophic Nutrition – The word Heterotrophic is the combination of two words i.e. Hetero + Trophos. Hetero means ‘others’ and ‘trophos’ means nourishment. If organisms depend on others for their food, it is called the Hetetrophic Nutrition. Animals cannot make their food themselves. They depend for food upon plants. Therefore, nutrition in animals is called Hetetrophic Nutrition. Animals are known as Heterotrophs. Page  5
  • 6. Saprotrophic Nutrition – The taking of nutrients by organism from dead and decaying matter in the form of solution is called the saprotrophic nutrition. The organisms which use saprotrophic mode of nutrition are called saprotrophs. For example: fungi. Page  6
  • 7. Check your answer: Questions – 1: What is autotroph? Answer- Organisms that make their food themselves are called autotrophs. Question-2: What is autotrophic mode of nutrition? Answer: The mode of nutrition in which the organism makes its own food is called autotrophic mode of nutrition. Question -3: Give some example of autotrophs. Answer: All green plants, such as grass, mango, bougainvillea, etc. are the examples of autotrophs. Question-4: What is heterotrophic mode of nutrition? Answer: The mode of nutrition in which an organism takes food from another organism is called heterotrophic mode of nutrition. The nutrition in animals and non-green plants is the example of heterotrophic mode of nutrition. Question-5: Give examples of Heterotrophs. Answer: Animals and non green plants are the examples of heterotrophs. Question-6: What is saprotrophs? Answer: Plants which get their nutrition from dead or decaying plants in liquid form are called saprotrophs. Page  7
  • 8. Photosynthesis - Food Making Process in Plants Page  8 The process of making of food by green plants in the presence of sunlight and chlorophyll is known as photosynthesis. Photosynthesis is the combination of two words- Photo + Synthesis. ‘Photo’ means light and ‘Synthesis’ means to make. Process of food making in green plants: Green plants make their food themselves. Green leaves make food from Carbon dioxide and water in the presence of sunlight and chlorophyll. Hence, for taking place of photosynthesis carbon dioxide, water and sunlight must be reached at the green leaves in addition to presence of chlorophyll.
  • 9. A section through a leaf: Leaves have several tiny pores like structure on its lower surface. This is called stomata through which leaves absorb carbon dioxide from air. Water is transported to the leaves through hair like pipelines from the roots. These pipelines are present throughout the plant, i.e. from roots to branches and leaves. These pipe-lines are known as Xylem. Xylem is a type of tissues. Chlorophyll, a green pigment, is found in green leaves. Chlorophyll absorbs sunlight and gives energy. Chlorophyll absorbs sunlight, carbon dioxide and water and convert them to carbohydrate and oxygen. Carbohydrate is used as food and oxygen is emitted out to atmosphrere.This whole process of making food by plants is called photosynthesis. Page  9
  • 10. Following are necessary for photosynthesis to be taken place: • Presence of sunlight • Presence of Chlorophyll • Presence of Water • Presence of carbon-dioxide Photosynthesis in Algae – Green patches in ponds or near the stagnant water can be seen easily. These green patches are living organism called algae. Algae are plants. Often algae grow near the shallow waterlogged areas such as near tube-wells, taps, etc. One may slip over it. Algae look green because of presence of Chlorophyll. Algae prepare their own food by the process of photosynthesis. 10 Make Presentation much more fun
  • 11. SSoouurrccee:: YYoouuttuubbee Page  11 Source : Youtube
  • 12. F.A.Q: Questions- 1 - What is photosynthesis? Answer- The process of making food in green plants in the presence of sunlight is known as photosynthesis. Questions- 2 - What are the essentials factors for the photosynthesis? Answer - Carbon dioxide, water, chlorophyll and sunlight are essentials factors for the photosynthesis to take place. Question – 3 - What is chlorophyll? Answer- Chlorophyll is the green pigment present in green leaves. Question – 4 – Why do leaves look green? Answer – Leaves look green because of the presence of chlorophyll, which is a green pigment. Questions- 5: What is the function of chlorophyll? Answer - Chlorophyll absorbs the sunlight for photosynthesis. 12 Make Presentation much more fun
  • 13. Question – 6: What are the final products made after photosynthesis? Answer- Glucose and oxygen are the final products after photosynthesis. Questions – 7: What are stomata? Answer- The small pores present on the lower surface of leaf, are called stomata. Questions- 8: What is function of stomata? Answer - Stomata absorb carbon dioxide from air for photosynthesis. Question - 9: What is the ultimate source of energy? Answer – Sun is the ultimate source of energy. Question – 10: How water is transported to the leaves? Answer: Water is transported to the leaves through pipe like structures from the roots of plant. These pipe-like structures are present from root to leaves through branches throughout. F.A.Q:
  • 14. Synthesis of plant food other than carbohydrate: Plants need proteins and fats besides the carbohydrate. Proteins are nitrogenous substances which contain nitrogen. Although nitrogen is present in abundance in atmosphere, but plant cannot absorb atmospheric nitrogen. Plant gets nitrogen from soil. Certain types of bacteria called rhizobium, are present in soil. They convert gaseous nitrogen into usable form and release it into the soil. Plants absorb these soluble forms of nitrogen along with water and other minerals through their roots. Sometimes farmers add nitrogenous fertilizer to their field to fulfill the need of nitrogen. In this way plants gets fulfillment of nitrogen along with other nutrients. After the fulfillment of all nutrients plants synthesise proteins and fats. Page  14
  • 15. F.A.Q: Question: 1 – What are the nutrients other than carbohydrates which are required by plants? Answer: Proteins and fats are the nutrients; other than carbohydrates; which are required by plants. Question: 2 – In which form do plants absorb nitrogen? Answer: Plants absorb soluble form of nitrogen. Question: 3 – Why do farmers add nitrogenous fertilizers to the soil? Answer: Farmers add nitrogenous fertilizers to the soil to fulfill the requirement of nitrogen of the plants. Nitrogen is necessary to synthesise proteins. Question: 4 – Which microorganism help to provide nitrogen to the plants? Answer: A certain type of bacteria called rhizobium help to provide nitrogen to the plants. Question: 5 – How do plants absorb nutrients other than carbohydrates from the soil? Answer: Other nutrients are available in the soil in the form of minerals. Plants absorb these minerals from the soil; along with water. Page  15
  • 16. MODES OF NUTRITION IN NON GREEN PLANTS - HETEROTROPHIC MODE OF NUTRITION IN PLANTS-Page Some plants do not have the chlorophyll. Hence, they cannot synthesise their food by themselves. Such plants are known as non green plants. They depend on other organisms for food. Such plants use the heterotrophic mode of nutrition. Some of them are called parasite. A parasite is an organism which lives on or inside the body of another organism and takes shelter and food from that organism. The host; in this case; is always at loss. Plants that do not have chlorophyll are called non-green plants. Plants, which live on other plants for food, are called parasitic plants.  16
  • 17. F.A.Q : Question: 1 – What do you understand by parasitic plants? Answer: A plant which lives on another plant and takes nutrients is called a parasitic plant. Question: 2 – Give some example of parasitic plants. Answer: Cuscuta and mistletoe Question: 3 – Why some plants are called parasites? Answer: Some plants are unable to prepare their own food and need to take food from another plant. Hence, they are called parasites. Question: 4 – What is the mode of nutrition in non-green plants? Answer: Non-green plants show heterotrophic mode of nutrition. Question: 5 – What do you understand by non-green plants? Answer: A plant which lacks chlorophyll is called non-green plant. Question: 6 – What do you understand by host? Answer: An organism which provides shelter and nutrition to another organism is called a host. Question: 7 – What is partial parasite? Answer: A parasite which depends for some of the nutrients; on another organism; is called a partial parasite. Question: 8 – Give example of partial parasitic plants? Answer: Misteltoe Page  17
  • 18. Insectivorous Plant – Page  18 Some plants eat insects. Such plants are called insectivorous plants. They trap and digest the insects. Pitcher plant is the example of an insectivorous plant. In pitcher plant the leaf is modified to form a pitcher like structure. The bright colour of the pitcher makes it very attractive to insects. Inside the pitcher; there are several hair-like structures. These hairs direct the trapped insects downwards. When an insect sits on the pitcher of the plant, the lid closes and the insects get trapped inside the pitcher. The insect is then digested by the enzymes secreted by the cells of the plants.
  • 19. Cause of Eating of Insects by Plants: Page  19 The soil of marshy land is deficient in nitrogen. Plants living in marshy areas do not get nitrogen from the soil. Their nitrogen need is fulfilled by sucking the juice of insects. Venus flytrap, utricularia, drosera and Rafflesia are the other examples of insectivorous plants.
  • 20. F.A.Q : Question: 1 – What is an insectivorous plant? Answer: A plant which fulfills its nitrogenous needs by eating insects is called an insectivorous plant. Question: 2 – Give an example of insectivores plant? Answer: Pitcher plant, Venus Fly trap, Bladderwort, Drosera, Rafflesia Question: 4 – Why does a plant eat insects? Answer: Plants living in marshy areas do not get nitrogen from the soil. To fulfill their nitrogenous need, they need to eat insects. Question: 5 – Write a brief note on pitcher plants? Answer: In a pitcher plant, the leaf is modified into a pitcher like structure. The pitcher is complete with a lid. The inside of pitcher is full of hair-like structures. The pitcher is used to trap insects which may fall in it. Page  20
  • 21. Saprotrophs : Page  21 Saprtrophs are non-green plants e.g. Agaricus (Mushroom) fungi, yeasts and bacteria. Saprotrophs get their food from dead or decaying organic matters. They grow on decaying organic matters such as cow-dung, wood, bread, etc. Saprotrophs secrete digestive juice over the decaying materials and absorb nutrients from them. This is called Saprotrophic Mode of Nutrition. Such plants are called saprotophs.
  • 22. Symbiosis or Mutualism – Page  22 Symbiosis is the combination of two Greek words ‘Sym’ means ‘with’ and ‘biosis’ means ‘living’, which means living together. In symbiosis or mutualism two different types of organisms live and work together for their mutual benefit from each other. They share shelter and nutrients, e.g. Lichens. Lichens are composite organisms composed of fungus and alga. Fungus is a saprophyte and alga is an autotroph. The Fungus supplies water and minerals to the cells of the alga while the alga supplies food; prepared by photosynthesis. A bird sitting on the back of a rhino is an example of symbiosis. The bird gets worms to eat, while the rhino gets rid of those worms.
  • 23. Replenishment of Nutrients in Soil - Some fungus live in the roots of the plans. Roots of the plants provide shelter and food to the fungus while fungus provides important nutrients to the plants. Because of continuous farming nutrients keep declining in the soil. Hence, to replenish those nutrients fertilizers are added to the soil. Plants require a lot of nitrogen to grow and to be healthy. Although, a lot of nitrogen is available in the atmosphere, but plants cannot absorb nitrogen in gaseous form. There is a bacterium called Rhizobium, which lives in the root nodules of legumes, such as gram, moong, etc. These bacteria can absorb nitrogen from the atmosphere and make it available for the plants. Rhizobium cannot make its food, hence, it provides nitrogen to the legumes and in return legumes provide them food and shelter. This is an example of symbiotic relationship. This has great importance for farmers. Fields in which leguminous plants are grown from time to time, do not need addition of nitrogenous fertilizers. Page  23
  • 24. F.A.Q : Question: 1 – What is the meaning of word ‘Symbiosis’? Answer: It is a relationship between two organisms in which both the organisms benefit each other. Question: 2 – What is Lichen? Answer: The lichen is a composite organism formed because of symbiosis of algae and fungi. Question: 3 – Give an example of symbiotic relationship. Answer: A small bird; called plover; cleans the crocodile’s teeth. The crocodile keeps its mouth open and the bird takes out meat fibres stuck between the teeth. The bird gets food in lieu of providing dentist’s services to the crocodile. Question: 4 – How do nutrients get replenished in the soil? Answer: There are two main means through which nutrients get replenished in the soil. One of them is the nitrogen fixation in soil. Nitrogen fixation replenishes nitrogenous nutrients in the soil. Another mean is decomposition of dead remains of plants and animals (or farm waste). Decomposition of dead remains replenishes various other nutrients in the soil. Page  24
  • 25. FF..AA..QQ :: Question: 5 – What is Rhizobium? Answer: Rhizobium is a bacterium. Question: 6 – What is the function of Rhizobium? Answer: Rhizobium helps leguminous plants in nitrogen fixation in soil. Question: 7 – How does Rhizobium help farmers? Answer: By helping in nitrogen fixation, rhizobium increases soil fertility and thus helps farmers. Question: 8 – Why do farmers prefer to sow leguminous plants? Answer: Leguminous plants carry out nitrogen fixation in soil and thus improve soil fertility. Question: 9 – In which form do plants absorb nitrogen? Answer: Plants absorb nitrogen in the form of nitrates. Page  25
  • 27.
  • 28. 28 Thank You Make Presentation much more fun