1. Photosynthesis II
Christopherson

2. Photosynthesis Function
To produce glucose (food) for producers
The formula for glucose: C6H12O6

3. Photosynthesis: How?
Plants absorb sunlight energy, carbon dioxide and water to make glucose

4. *Where are we?

5. Structure: Chloroplast
Thylakoid: Group of pigments; absorb sunlight energy
Stroma: Fluid inside the chloroplast
Grana: Stack of Thylakoids

6. Photosynthesis Summative Equation (Formula)
Sunlight Energy
CO2
H2O +
C6H12O6 O2 +
Reactants
What is needed
Products
What is produced

7. The giant sequoia tree is one of the largest trees on earth
The giant sequoia tree is one of the largest trees on earth. It starts as a small seedling and grows into an enormous tree. Five children can stretch their arms across the width of the truck of one of the large sequoia trees! Where did most of the MATTER that makes up the wood and leaves of this huge tree originally come from? Circle the best answer.
Sunlight
Water
Soil
Carbon dioxide
Oxygen
Minerals
Chlorophyll
Explain your thinking. How did you decide where most of the matter that makes up this tree came from?

8. Do you think Harvard graduates would know the answer to this question?
Stop video 1:30

10. Light Dependent Reaction: Location
Thylakoid: Location of pigments; absorb sunlight energy

11. Light-Dependent Reaction
3. Oxygen’s combine and leave as oxygen gas
Pigments absorb
sunlight energy
2. Plants absorb water; break it down into H’s and O’s H O O H H O2 H
H2O

12. Light-Dependent Reaction: Reactants
Hint: Look at arrows going in
Sunlight
Energy H O O H H H
Water O2
H2O

13. Light-Dependent Reaction: Products
Hint: Look at arrows going out
Oxygen H O O H H H O2
H2O

14. Calvin Cycle: Location
Stroma: Fluid inside the chloroplast

15. C6H12O6 Calvin Cycle C C C C C C CO2 O2 CO2 O2 CO2 O2 CO2 O2 CO2 O2
Carbon dioxide is released by consumers and producers
2. Producers absorb carbon dioxide; break off the carbon; and release oxygen.
4. The six carbons, the stored energy from the sun, hydrogen, and oxygen ALL combine together to make Glucose C6H12O6
Calvin Cycle
3. Process continues until six carbons are collected
CO2 O2
CO2 C O2
CO2 C O2
C6H12O6
CO2 C O2
CO2 C O2 C
CO2 O2 C

16. Why are 6 carbon dioxide molecules absorbed?
Need 6 carbons from carbon dioxide to make:
C6H12O6
Glucose

17. Reactants: Calvin Cycle
Carbon
dioxide
CO2 O2
CO2 C O2
CO2 C O2
CO2 C O2
CO2 C O2 C
CO2 O2 C
C6H12O6

18. Products: Calvin Cycle
Oxygen
CO2 O2
CO2 C O2
Glucose
CO2 C O2
CO2 C O2
CO2 C O2 C
CO2 O2 C
C6H12O6

19. What does Photosynthesis REALLY look like???

20. Photosynthesis Song

21. The giant sequoia tree is one of the largest trees on earth
The giant sequoia tree is one of the largest trees on earth. It starts as a small seedling and grows into an enormous tree. Five children can stretch their arms across the width of the truck of one of the large sequoia trees! Where did most of the MATTER that makes up the wood and leaves of this huge tree originally come from? Circle the best answer.
Sunlight
Water
Soil
Carbon dioxide
Oxygen
Minerals
Chlorophyll
Explain your thinking. How did you decide where most of the matter that makes up this tree came from?