Light Dependent Reactions

Front

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

Back

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

Front

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

Back

ATP, NADPH, and Oxygen.

Front

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

Back

Chlorophyll absorbs light energy, which is used to split water molecules and generate ATP and NADPH.

Front

Where do the light-dependent reactions take place in the chloroplast?

Back

In the thylakoid membranes.

Front

What enzyme is responsible for synthesizing ATP during the light-dependent reactions?

Back

ATP synthase.

Front

What happens to water molecules during the light-dependent reactions?

Back

They are split into oxygen, hydrogen ions, and electrons.

Front

What is the significance of NADPH in photosynthesis?

Back

NADPH is used as a reducing agent in the Calvin cycle to help convert carbon dioxide into glucose.

Front

What is the role of hydrogen ions (H+) in the light-dependent reactions?

Back

They create a proton gradient that drives ATP synthesis through ATP synthase.

Front

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

Back

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

Front

What is a pigment?

Back

A pigment is a molecule that absorbs specific wavelengths of light; chlorophyll is the primary pigment in plants.