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 is the primary function of chlorophyll in photosynthesis?

Back

Chlorophyll is a 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 do light-dependent reactions occur?

Back

Light-dependent reactions occur in the thylakoid membranes of chloroplasts.

Front

What is produced during the light-dependent reactions?

Back

The light-dependent reactions produce oxygen, ATP, and NADPH.

Front

What is the role of NADPH in photosynthesis?

Back

NADPH acts as an electron carrier, transporting electrons and protons to the Calvin cycle for the synthesis of glucose.

Front

Where do light-independent reactions (Calvin cycle) take place?

Back

Light-independent reactions occur in the stroma of chloroplasts.

Front

What is the overall equation for photosynthesis?

Back

The overall equation for photosynthesis is: 6CO₂ + 6H₂O + light energy → C₆H₁₂O₆ + 6O₂.

Front

What is the significance of water in photosynthesis?

Back

Water is split during the light-dependent reactions, providing electrons and protons, and releasing oxygen as a byproduct.

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.