1. Photosynthesis and Respiration
Unit: Plant Science

2. Five plant processes Photosynthesis Respiration Water Absorption
Translocation
Transpiration

3. Movement of Nutrients and Water
Transpiration
Translocation
Absorption

4. Movement of water and nutrients
Transpiration
Loss of water by evaporation through the leaf surface
Occurs when the stoma open to take in CO2

5. TRANSPIRATION

6. TRANSPIRATION

7. Movement of water and nutrients
2. Translocation a. movement of water and organic compounds within the plant

8. XYLEM and PHLEOM b. Vascular system: Xylem and Phloem
c. Xylem- movement of water and nutrients up
d. Phloem- movement of sugars and starch down

9. Movement of water and nutrients
3. Absorption a. nutrients absorbed through root hairs b. Osmosis occurs by diffusion c. Diffusion is the movement of molecules from high concentration to low concentration

10. Absorption

12. Photosynthesis
Process through which green plants convert carbon dioxide and water in the presence of light into simple sugar
6 CO H2O
chlorophyll
C6H12O O2
(carbon (water)
dioxide)
light energy
(glucose) (oxygen)

13. Photosynthesis

14. Photosynthesis Carbon Dioxide entrers plant through stomata on leaves
Water absorbed through root hairs and moves to the leaves by the xylem tissue
Light strikes the chlorophyll in the cells of leaf stem
Light is absorbed enabling chemical reaction to take place between carbon dioxide and hydrogen in water
Glucose most common carbohydrate and simple sugar
Trasported by the phloem tissues to other parts of the plant
Osygen is released as a by-product through the stomata
Water vapor is released when the stomata open

16. Plants use food for….
Energy
Plant growth
Store food
Respiration

17. Energy

18. Plant Growth

19. Respiration Breakdown of glucose C6H12O6 + 6O2 6CO2 + 6H2O + energy
Releases Carbon dioxide and water into the air
Aerobic respiration- presence of oxygen
Anaerobic respiration- without oxygen

21. Air Quality Plants release oxygen into the atmosphere
Plants absorb carbon dioxide from the atmosphere

22. REVIEW
FOOD
GLUCLOSE