The importance of Macromolecules in our life

2. LEARNING OBJECTIVES:
1. Define Biological Macromolecules
2. Enumerate four classes of
Biological Macromolecules
3. Determine the properties and
functions of different Biological
Macromolecules

4. What is the importance
of foods in human body?

8. Biological
Macromolecule
Biological
Macromolecules are large
molecules that is
necessary for life.

9. All biological macro-
molecule are made up of
a small number of
elements.

10. Macromolecu
le
Polymer

11. What do these words mean?

12. A very, very large
molecule

14. There are four classes of biological
macromolecules we will be looking at:
Proteins
Lipids
Carbohydrates
Nucleic acids

15. ALL four can be found in
food!!
Think about it!!

16. Look at the label to the left.
3 of the 4 macromolecules
are labeled!!
1____________________
2____________________
3____________________
(0 grams in this
product)
(13 grams in this
product)
(9 grams in this
product)

17. Carbohydrates
Biological
Macromolecul
e

19. They are the main source
of energy for the body.

20. CARBOHYDRATES
THERE ARE 2 TYPES OF
CARBOHYDRATES
Simple
- Monosaccharide
- Disaccharide
Complex
- Polysaccharide

21. made up of 1 or 2
monomers.
They also taste sweet.
Simple Carbohydrates/ Simple Sugar

22. Simple Carbohydrates/ Simple Sugar

23. polymers made up of many
monomers.
Most also taste starchy.
Complex Carbohydrates/Complex Sugar

24. Complex Carbohydrates/Complex Sugar

25. CARBOHYDRATES
Chitin
The hard outer
shell of shrimp,
lobsters, and
many insects is
made of chitin

26. CARBOHYDRATES
Cellulose
Provide
structure to
plant cell wall.

27. Lipids/Fats
Biological
Macromolecul
e

29. They INSULATE the
body to maintain
normal body
temperature and they
CUSHION the internal
organs for protection.
LIPIDS

30. LIPIDS
•Fruits produce a
waxy coating to
keep from drying
out.
• The cells in a
tulip make a wax
which helps coat
the leaves.

31. LIPIDS
•Ear wax traps dust, sand, and
other foreign particles from going
deeper into the ear and causing
damage.

32. LIPIDS – Foods that contain Fat

33. Proteins
Biological
Macromolecul
e

35. PROTEINS
They are the major
structural molecules in
living things for growth
and repair.

36. PROTEINS

37. Proteins

38. Hair, Skin,
and Nails

40. Safe Laboratory Practices
- No food or drinks during activity
- Wear your PPE and Laboratory
attire
- Stay focus and aware on your
surroundings
- Participate in safety exercise