Unit 3 practice ap bio

Front

What enzyme in the Electron Transport Chain (ETC) is responsible for generating ATP molecules?

Back

ATP synthase is the enzyme responsible for synthesizing ATP in the ETC.

Front

What is the main role of pigment molecules in a light-harvesting complex in the thylakoid membranes?

Back

The main role is to transfer light energy to the reaction-center chlorophyll.

Front

What is NADH in relation to NAD+?

Back

NADH is the reduced form of NAD+.

Front

Which molecule is not needed for the Calvin Cycle?

Back

H2O is not needed for the Calvin Cycle.

Front

What process can still occur in a chloroplast if H+ cannot pass through ATP synthase?

Back

The generation of proton-motive force can still occur.

Front

Define photophosphorylation.

Back

Photophosphorylation is the process of generating ATP from ADP and inorganic phosphate using the energy of light.

Front

What is the role of ATP in cellular processes?

Back

ATP serves as the primary energy currency of the cell, providing energy for various biochemical reactions.

Front

Explain the Calvin Cycle.

Back

The Calvin Cycle is a series of biochemical reactions that take place in the stroma of chloroplasts, converting CO2 into glucose using ATP and NADPH.

Front

What is the significance of the proton gradient in chloroplasts?

Back

The proton gradient is essential for ATP synthesis during photophosphorylation.

Front

What are the products of the light-dependent reactions of photosynthesis?

Back

The products are ATP, NADPH, and O2.