1. PLANTS

2. Parts of a Plant ? ? ? ? ?

3. Root Function: Anchors plant in soil Takes up water and
minerals from soil

4. Root hairs Function: Increase surface area Much greater absorption
of water and minerals

5. Stem Function: Supports leaves, flowers, and fruit
Transports water & minerals from roots to leaves

6. Leaves
Function:
Site of photosynthesis
Site of gas exchange

7. Leaves Site of photosynthesis Large, flat areas that absorb sunlight
Make sugar (glucose)
glucose

8. Leaves Site of gas exchange Gases CO2 and O2 enter
and exit thru stomata
Stomata – small openings on
the surface of leaves (underside)
Photosynthesis
Recall, plants also “breath”

9. Do the stomata stay open all the time
for maximum photosynthesis?
No, or else the plant would lose a lot of water vapor and dry up.

10. Guard cells open and close the stomata to
minimize water loss.

13. Flower
Function:
Site of sexual reproduction
Produces egg and sperm

14. (contains the egg)

15. Pollen contains male gamete (sperm)
ovary
Contains female gamete (egg)
fertilization

16. After fertilization, the ovary develops into the fruit
(contains the egg)

18. Fruit
A fruit is a ripen ovary and contains
the seed or embryo.

19. Fruit
Function:
Protects the seed(embryo)
Helps disperse the seed.

20. Seed
Contains the embryo
Contains stored food
to nourish the embryo

21. A plant growing from a seed.

22. Pine trees produce cones, not fruit.
Cones contain seeds.