Photosynthesis Light Reaction

Front

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

Back

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

Front

What molecule supplies the electron that is lost in Photosystem II?

Back

Water (H2O).

Front

Where do the light reactions of photosynthesis occur?

Back

In the thylakoid membrane of chloroplasts.

Front

What are the structures called that contain chlorophyll and other pigments in plants?

Back

Photosystems.

Front

What is the role of chlorophyll in photosynthesis?

Back

To absorb light energy, primarily in the blue and red wavelengths.

Front

What are thylakoids?

Back

Membrane-bound compartments inside chloroplasts where the light reactions take place.

Front

What are grana?

Back

Stacks of thylakoids in the chloroplast.

Front

What is the electron transport chain's role in the light reactions?

Back

To transfer electrons from photosystems to generate ATP and NADPH.

Front

What is produced as a byproduct of the light reactions?

Back

Oxygen (O2).

Front

What is the significance of NADPH in photosynthesis?

Back

It serves as a reducing agent in the Calvin cycle, helping to convert carbon dioxide into glucose.