Photosynthesis Basics Review

What is the primary role of ATP in cells?

• To transfer energy for cellular processes

• To act as a hormone

• To provide structural support

• To store genetic information

Which component of ATP contains the highest energy bonds?

• Third phosphate group

• First phosphate group

• Adenine

• Ribose

What is the main pigment involved in capturing light energy for photosynthesis?

• Anthocyanin

• Chlorophyll

• Xanthophyll

• Carotene

Which color of light is least absorbed by chlorophyll?

• Green

• Blue

• Red

• Yellow

Where do the light-dependent reactions of photosynthesis take place?

• Cytoplasm

• Mitochondria

• Thylakoid membranes

• Stroma

What is produced during the light-dependent reactions that is used in the Calvin cycle?

• Chlorophyll and light

• Carbon dioxide and water

• ATP and NADPH

• Oxygen and glucose

What is the main purpose of the Calvin cycle?

• To generate ATP

• To absorb light

• To synthesize glucose

• To produce oxygen

Which molecule is regenerated in the Calvin cycle to be reused in the light-dependent reactions?

• NADP+

• Oxygen

• Water

• Carbon dioxide

How does temperature affect the rate of photosynthesis?

• Higher temperatures always increase the rate

• Lower temperatures always increase the rate

• Temperature has no effect on the rate

• There is an optimal temperature range for maximum rate

What happens to the rate of photosynthesis when light intensity reaches the saturation point?

• It stops completely

• It increases indefinitely

• It decreases

• It remains constant