AP Biology Photosynthesis Flashcard

Front

What is the primary function of the light reactions of photosynthesis?

Back

To produce NADPH and ATP.

Front

What supplies the electrons that are lost in PS I?

Back

The electrons from PS II.

Front

What color of light do green plants reflect?

Back

Green.

Front

What is the role of the H+ concentration gradient in photosynthesis?

Back

It is used to generate ATP.

Front

What are the two main products of the light reactions of photosynthesis?

Back

NADPH and ATP.

Front

What is the source of electrons for the light reactions?

Back

Water.

Front

What is the significance of chlorophyll in photosynthesis?

Back

Chlorophyll absorbs light energy, primarily in the blue and red wavelengths.

Front

What is the overall equation for photosynthesis?

Back

6CO2 + 6H2O + light energy → C6H12O6 + 6O2.

Front

What is the role of RuBP in the Calvin cycle?

Back

RuBP (ribulose bisphosphate) is a 5-carbon sugar that combines with CO2 to initiate the Calvin cycle.

Front

What is photolysis in the context of photosynthesis?

Back

Photolysis is the process of splitting water molecules using light energy to release oxygen and provide electrons.