The Basic Plant Organ system.

1. Plants Organ System

2. Plants Major Organ System
1.

3. Plants Major Organ
Roots
Stems
Leaves
Reproductive Structures

4. The Importance of Plants
1. Photosynthesis sustains life on Earth.

5. 2. Plants are our fundamental source of food.

11. 3. Many medicines come from plants.

14. 4. Plants provide fuel, shelter, and paper
products

15. 4. Plants provide fuel, shelter, and paper
products

17. 6. Biotechnology seeks to develop new plants
products.

19. Roots
Taproot systems usually penetration more
deeply than fibrous root systems.

20. Roots development occurs near the root tip.

21. Absorption of water and minerals occurs
mainly through the roots hairs.

22. Some roots have specialized functions in ad-
dition to anchoring the plant and absorbing
water and minerals

30. Stem
In primary growth of most stems, the
vascular tissue forms separate bundles

35. Some stems have specialized functions in
addition to support and conduction

36. Some stems have specialized functions in
addition to support and conduction

37. Some stems have specialized functions in
addition to support and conduction

39. Leaves
The leaf epidermis provides protection and
regulates exchange of gas.

41. Leaf shapes and arrangements have
environmental significance

44. Some leaves have specialized functions in
addition to photosynthesis and transmission.

46. Life-cycle of a Flowering Plant
Flowering plants follow a specific life cycle.Seed - They begin
their lives as seeds. Seeds are like baby plants. They have a
hard outer shell that protects the seed embryo inside.
Germination - The seed ends up on the ground. It needs air,
water, and soil to grow. When a seed begins to grow, this is
called germination. The first growth will usually be some
small roots. Then stems will grow.
Sprout or seedling - When the first sign of life appears above
the soil, this is called a sprout or seedling.
Mature plant - The seedling will continue to grow into a full
mature plant with leaves, roots, and stems.
Flowering - The mature plant will grow flowers. Through
pollination, the flowers will produce seeds. When the seeds
end up on the ground, the cycle will begin again.

49. Fruits
Fruits are a way which many plants
spread their seeds. Fruits are formed
after the flower is fertilized with
pollen. The ovules in the pistil will
become seeds and the flower will
transform into a fruit.

50. Fruits
Fruits are a way which many plants
spread their seeds. Fruits are formed
after the flower is fertilized with
pollen. The ovules in the pistil will
become seeds and the flower will
transform into a fruit.

52. Seeds
The seed is the embryo of a plant.
Sort of like a baby plant. Seeds come
in all sizes shapes and colors
depending on the type of plant.
Inside the seed is a plant embryo,
food for the embryo, and a seed coat
to protect it.