Photosynthesis

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 reactions and the Calvin cycle.

Front

Where do the light reactions of photosynthesis occur?

Back

The light reactions occur in the thylakoid membranes of chloroplasts.

Front

What is the main product of the light reactions?

Back

The main products of the light reactions are ATP and NADPH.

Front

What is the role of chlorophyll in photosynthesis?

Back

Chlorophyll is a pigment that absorbs light energy, primarily in the blue and red wavelengths, and plays a crucial role in converting light energy into chemical energy.

Front

What is the Calvin cycle?

Back

The Calvin cycle is the set of chemical reactions that take place in the stroma of chloroplasts, where carbon dioxide is fixed into glucose using ATP and NADPH produced in the light reactions.

Front

What is the significance of stomata in photosynthesis?

Back

Stomata are small openings on the surface of leaves that allow for the exchange of gases; they enable carbon dioxide to enter and oxygen to exit the leaf.

Front

What is the by-product of splitting water molecules during photosynthesis?

Back

The by-product of splitting water molecules is oxygen.

Front

How does ATP synthase function in photosynthesis?

Back

ATP synthase is an enzyme that synthesizes ATP from ADP and inorganic phosphate during the light reactions, using the proton gradient created by the electron transport chain.

Front

What is the role of NADP+ in photosynthesis?

Back

NADP+ is an electron carrier that accepts electrons during the light reactions, becoming reduced to NADPH, which is then used in the Calvin cycle.