Light Dependent Reactions of Photosynthesis

Front

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

Back

NADPH and ATP.

Front

Why do green leaves appear green?

Back

Chlorophyll reflects green light.

Front

What provides the electrons lost in photosystem I (PSI)?

Back

The electrons from photosystem II (PS II).

Front

Which color of light is not absorbed by chlorophyll pigments?

Back

Green.

Front

What happens to the oxygen produced during the light-dependent reactions?

Back

It diffuses out through the stoma.

Front

What is the role of chlorophyll in photosynthesis?

Back

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

Front

What is the significance of ATP in the light-dependent reactions?

Back

ATP provides energy for the Calvin Cycle.

Front

What is NADPH and why is it important?

Back

NADPH is an electron carrier that provides reducing power for the Calvin Cycle.

Front

What is the function of water in the light-dependent reactions?

Back

Water provides electrons and protons, and releases oxygen as a byproduct.

Front

How does light intensity affect the rate of photosynthesis?

Back

Increased light intensity generally increases the rate of photosynthesis up to a certain point.