Light Dependent Reaction

Front

What is the primary function of the light-dependent reactions in photosynthesis?

Back

To convert light energy into chemical energy in the form of ATP and NADPH.

Front

Where do the light-dependent reactions occur in the plant cell?

Back

In the thylakoid membranes of the chloroplasts.

Front

What is the role of chlorophyll in the light-dependent reactions?

Back

Chlorophyll absorbs light energy, which is used to energize electrons.

Front

What is produced as a byproduct of the light-dependent reactions?

Back

Oxygen (O2) is released as a waste product.

Front

What is the significance of the H+ concentration gradient in the thylakoid space?

Back

It drives the synthesis of ATP through ATP synthase.

Front

What is the role of NADP+ in the light-dependent reactions?

Back

NADP+ acts as an electron carrier, becoming reduced to NADPH.

Front

What is a photon?

Back

A photon is a unit of light energy.

Front

How does ATP synthase function in the light-dependent reactions?

Back

ATP synthase uses the flow of H+ ions to convert ADP and inorganic phosphate into ATP.

Front

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

Back

ATP and NADPH.

Front

What is the relationship between light intensity and the rate of photosynthesis?

Back

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