Biology Photosynthesis Review 2023

Front

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

Back

To convert light energy into chemical energy, producing ATP and NADPH while splitting water to release oxygen.

Front

What is chlorophyll and why is it important for photosynthesis?

Back

Chlorophyll is the chief pigment molecule in plants that captures sunlight energy, essential for the photosynthesis process.

Front

What are the two main reactants required for photosynthesis?

Back

Water (H2O) and carbon dioxide (CO2).

Front

What is the main product of photosynthesis?

Back

Glucose (C6H12O6), which serves as an energy source for plants.

Front

What role does ATP play in cellular processes?

Back

ATP (adenosine triphosphate) is the main energy carrier in all living organisms, providing energy for various cellular functions.

Front

What is the significance of the oxygen produced during photosynthesis?

Back

Oxygen is a byproduct of photosynthesis that is essential for the respiration of most living organisms.

Front

Describe the process of photolysis in photosynthesis.

Back

Photolysis is the splitting of water molecules using light energy during the light-dependent reactions, producing oxygen, protons, and electrons.

Front

What is the role of carbon dioxide in photosynthesis?

Back

Carbon dioxide is a reactant in the Calvin cycle, where it is fixed into glucose.

Front

Explain the difference between light-dependent and light-independent reactions.

Back

Light-dependent reactions require sunlight to produce ATP and NADPH, while light-independent reactions (Calvin cycle) use these products to synthesize glucose.

Front

What is the function of stomata in plants?

Back

Stomata are small openings on the leaf surface that allow for gas exchange, enabling the intake of carbon dioxide and the release of oxygen.