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Which term identifies a light-absorbing pigment?

thylakoid

ferredoxin

chlorophyll

photosystem

Why is the Calvin cycle considered a dark reaction?

It occurs only at night.

It requires an absence of light.

It turns the plant dark green.

It can proceed in the dark.

Which statement describes thylakoids?

Photosystems I and II function here.

Glucose is formed here.

Water molecules are formed here.

Only photosystem II functions here.

How does ATP supply energy for cellular activities?

by breaking off a phosphate group from its structure

by adding a phosphate group to its structure

by releasing the sugar molecule from its structure

by attaching itself to a glucose molecule

Which is the final electron acceptor in the electron transport chain of cellular respiration?

carbon dioxide

FADH sub 2

oxygen

NADH

What is carbon fixation, and how does it relate to photosynthesis?

It is the conversion of CO sub 2 into organic compounds, and it forms 3-PGA.

It is the reduction of CO sub 2 , and it occurs during the Calvin cycle.

It is the absorption of CO 2 from the air, and it occurs during the light-dependent reactions.

It is the production of CO sub 2 during regeneration, and it forms RuBP.

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