1. Ch. 8.1 Notes Photosynthesis

2. Where does photosynthesis take place?
(partners)
What is the goal?
Where does photosynthesis take place?
It takes place in the __________________ of a cell.
What types of organisms do photosynthesis?
What is chlorophyll?
To make food (glucose) from sunlight
chloroplast
Plants (autotrophs)
It is the green pigment found inside of a chloroplast

3. What is the overall reaction?
Photosynthesis Big Picture
(partners)
Why is it so important?
What is the overall reaction?
__________+________+_____________+_________
Two steps of photosynthesis
1.)
2.)
**Order doesn’t matter!! There is no first step.**
It’s how plants make their food
Sunlight
H2O
CO2 O2
C6H12O6
Light Dependent Reaction (light reaction)
Light Independent Reaction (dark reaction)

4. Light Dependent Reaction
(Also called the light reaction)
What is needed?
What is created?
Overall Reaction:
When does this step occur?
Sunlight + water
Oxygen + ATP
Sunlight + H2O  O2 + ATP
When the plant is in the sun
(during the day)

5. Light Independent Reaction
(Also called the dark reaction or Calvin Cycle)
What is needed?
What is created?
Overall Reaction:
When does this step occur?
Carbon dioxide + ATP
Glucose
CO2 + ATP  C6H12O6
When there is NO sunlight
(at night)
What is the glucose needed for?
It is the plant’s food! The glucose is also necessary for cellular respiration to begin.

6. Ch. 8.2 Notes Light

7. Pigment
What is it?
White Light
How is white light created?
The color of something
(like paint colors!)
It is a combination of all the colors of light

8. What color would a green leaf be if we looked at it under red light?
Chlorophyll
Why is it green?
Light Experiment
What color would a green leaf be if we looked at it under red light?
Why does this happen?
It reflects green light & absorbs all the rest
Brown/black
There is no green light to be reflected. So you see no light, which looks brown/black.

13. Chloroplast

14. Overall Photosynthesis Reaction

15. Light Dependent & Independent Reactions

16. Why Chlorophyll is Green