Photosynthesis and ATP

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

What is the role of chlorophyll in photosynthesis?

Back

Chlorophyll is a pigment found in the chloroplasts of plants that absorbs light energy, primarily from the sun, which is essential for the photosynthesis process.

Front

What is ATP?

Back

ATP (adenosine triphosphate) is a nucleotide that serves as the primary energy carrier in cells.

Front

What is NADPH?

Back

NADPH (nicotinamide adenine dinucleotide phosphate) is a coenzyme that carries electrons and provides reducing power for the Calvin cycle in photosynthesis.

Front

How is energy stored in ATP?

Back

Energy is stored in ATP in the form of high-energy phosphate bonds, particularly between the second and third phosphate groups.

Front

What happens to ATP when it is used for energy?

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When ATP is used for energy, it loses a phosphate group and is converted to ADP (adenosine diphosphate).

Front

What is the ATP/ADP cycle?

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The ATP/ADP cycle is the process of converting ADP back to ATP by adding a phosphate group, thus storing energy for future use.

Front

What is the ultimate source of energy for photosynthesis?

Back

The ultimate source of energy for photosynthesis is sunlight.

Front

What are the products of the light-dependent reactions?

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The products of the light-dependent reactions are ATP, NADPH, and oxygen.