Light-dependent Reactions Light-independent Reactions Pathways Labs - Factors affecting photosynthesis Miscellaneous
100
What is water?
The oxygen produced in photosynthesis comes from this molecule.
100
What is carbon dioxide?

[CO2]
This molecule is the source of carbon for building carbohydrates (sugars).
100
What is the C3 pathway?
This is the most dominant pathway for fixing carbon dioxide.
100
What is blue and red?
These colors are the most absorbed by chlorophyll.
100
What is photosystem II?
This is the first photosystem used in photosynthesis.
200
What is ATP and NADPH?
These are the products of light reactions.
200
What is the Calvin cycle?

[Citric-Acid Cycle]
This cyclic process only occurs in the stroma.
200
What is the C4 pathway?
This photosynthetic pathway is used by some plants to survive in a hot-dry climate.

Ex: Corn
200
What is green?
This is the color of bromothymol solution after being placed in the dark with elodea.
200
What is water?
While light is used in both photosystems, this molecule is only used in II.
300
What is to produce ATP?
This is the whole point of photosystem II?
300
What is Fixation, Reduction, and Regeneration?
These are the three steps of the Calvin cycle.
300
What is the C4 pathway?
This photosynthetic pathway separates carbon fixation and the rest of Calvin cycle by location (i.e., Mesophyll cells vs. Bundle sheath cells).
300
What is light intensity?
Increasing this will increase photosynthesis, but only up until a certain point and then it will stabilize.
300
What is NADPH?
The purpose of this molecule is to carry electrons for use in the Calvin cycle.
400
What is photophosphorylation?
This term means ATP production by sunlight.
400
What is the production of sugars (carbs)?
This is the product of the Calvin cycle.
400
What is the CAM pathway?
This photosynthetic pathway separates carbon fixation and the rest of the Calvin cycle by time of day.
400
What is CO2?
If there is none of this gas present, photosynthesis cannot make sugars.
400
What is 5?
For every glucose molecule this is how many G3P molecules are used to regenerate RuBP.
500
What is chlorophyll?

[pigments]
This supplies the electrons entering the electron transport chains.
500
What is rubisco?
This enzyme fixes CO2 to a 5-carbon organic compound called RuBP.
500
What is cyclic electron flow?
This pathway of electron flow only produces ATP; making up for the ATP debt created in the Calvin Cycle.
500
What is temperature?
Only under optimal conditions does this increase photosynthesis. Too much, or too little, and photosynthesis will be reduced.
500
What is stomata?
These are the openings by which CO2 is transferred into a plant cell?

AP Biology: Photosynthesis

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