Photosynthesis review

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose, using carbon dioxide and water.

Front

What are the two main stages of photosynthesis?

Back

The two main stages of photosynthesis are the light-dependent reactions and the light-independent reactions (Calvin cycle).

Front

Where do light-dependent reactions occur?

Back

Light-dependent reactions occur in the thylakoid membranes of chloroplasts.

Front

What is the primary pigment involved in photosynthesis?

Back

The primary pigment involved in photosynthesis is chlorophyll.

Front

What is photolysis?

Back

Photolysis is the process of using light energy to split water molecules into oxygen, protons, and electrons during the light-dependent reactions.

Front

What is the role of ATP in photosynthesis?

Back

ATP (adenosine triphosphate) serves as an energy carrier, providing energy for the light-independent reactions (Calvin cycle) to synthesize glucose.

Front

What is the role of NADPH in photosynthesis?

Back

NADPH is a reducing agent that provides the high-energy electrons needed for the reduction of carbon dioxide to glucose in the Calvin cycle.

Front

Why do plants appear green?

Back

Plants appear green because chlorophyll absorbs blue and red light and reflects green light.

Front

What is the equation for photosynthesis?

Back

The equation for photosynthesis is 6CO2 + 6H2O + light energy → C6H12O6 + 6O2.

Front

What is the significance of carbon dioxide in photosynthesis?

Back

Carbon dioxide is a key reactant in photosynthesis, providing the carbon atoms that are fixed into glucose.