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 main products of photosynthesis?

Back

The main products of photosynthesis are glucose (C6H12O6) and oxygen (O2).

Front

What is the role of chlorophyll in photosynthesis?

Back

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

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 does the light-dependent reaction occur?

Back

The light-dependent reactions occur in the thylakoid membranes of the chloroplasts.

Front

What is the function of stomata in leaves?

Back

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

Front

What factors affect the rate of photosynthesis?

Back

Factors that affect the rate of photosynthesis include light intensity, carbon dioxide concentration, temperature, and water availability.

Front

What is the significance of carotenoids in leaves during fall?

Back

Carotenoids are pigments that become visible when chlorophyll breaks down in the fall, leading to the yellow and orange colors of leaves.

Front

What is the role of water in photosynthesis?

Back

Water is a reactant in photosynthesis; it is split during the light-dependent reactions to provide electrons and protons, and oxygen is released as a byproduct.

Front

What is the Calvin cycle?

Back

The Calvin cycle is the light-independent stage of photosynthesis where carbon dioxide is fixed into glucose using ATP and NADPH produced in the light-dependent reactions.