Light dependent reactions of phtosynthesis

Front

What is the main purpose of the light dependent reactions in photosynthesis?

Back

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

Front

What are the main reactants of the light dependent reactions?

Back

H2O and light energy.

Front

What are the main products of the light dependent reactions?

Back

ATP, NADPH, and O2.

Front

Where do the light dependent reactions occur in the chloroplast?

Back

In the thylakoid membranes.

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 happens to water molecules during the light dependent reactions?

Back

They are split (photolysis) to release oxygen, protons, and electrons.

Front

What is the significance of ATP and NADPH produced in the light dependent reactions?

Back

They provide energy and reducing power for the Calvin cycle (light independent reactions).

Front

What is the difference between the light dependent reactions and the Calvin cycle?

Back

Light dependent reactions convert light energy into chemical energy; the Calvin cycle uses that energy to fix carbon dioxide into glucose.

Front

What is the function of the thylakoid membrane?

Back

It houses the components necessary for the light dependent reactions, including photosystems and electron transport chains.

Front

How many membranes surround a chloroplast?

Back

Two membranes: an outer and an inner membrane.