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 main products of photosynthesis?

Back

The main products of photosynthesis are glucose (sugar) and oxygen.

Front

What is the role of chlorophyll in photosynthesis?

Back

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

Front

What is the overall chemical equation for photosynthesis?

Back

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

Front

What are light reactions in photosynthesis?

Back

Light reactions are the first stage of photosynthesis, occurring in the thylakoid membranes of chloroplasts, where light energy is converted into chemical energy in the form of ATP and NADPH.

Front

What is the significance of oxygen in photosynthesis?

Back

Oxygen is released as a byproduct of photosynthesis and is essential for the survival of aerobic organisms, including humans.

Front

What is the difference between the light reactions and the Calvin cycle?

Back

Light reactions convert light energy into chemical energy (ATP and NADPH), while the Calvin cycle uses that chemical energy to convert carbon dioxide into glucose.

Front

What is the role of water in photosynthesis?

Back

Water is a reactant in photosynthesis that provides electrons and protons, and it is split during the light reactions to release oxygen.

Front

What is the function of the stomata in plants?

Back

Stomata are small openings on the surfaces of leaves that allow for gas exchange, enabling carbon dioxide to enter and oxygen to exit.

Front

What is the importance of glucose produced in photosynthesis?

Back

Glucose serves as an energy source for plants and is used to build other organic compounds necessary for growth and development.