Photosynthesis and the Calvin Cycle

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 Calvin cycle (light-independent reactions).

Front

Where do the light-dependent reactions occur?

Back

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

Front

What is the role of chlorophyll in photosynthesis?

Back

Chlorophyll is a pigment that absorbs light energy, primarily from the sun, which is essential for the light-dependent reactions of photosynthesis.

Front

What is ATP and its role in photosynthesis?

Back

ATP (adenosine triphosphate) is an energy-carrying molecule produced during the light-dependent reactions, which provides energy for the Calvin cycle.

Front

What is NADPH and its function in photosynthesis?

Back

NADPH is a reduced electron carrier produced in the light-dependent reactions, which provides the reducing power for the Calvin cycle.

Front

What is the Calvin cycle?

Back

The Calvin cycle is the series of biochemical reactions that take place in the stroma of chloroplasts, where carbon dioxide is fixed and converted into glucose.

Front

What is the primary function of RuBisCO in the Calvin cycle?

Back

RuBisCO (ribulose bisphosphate carboxylase/oxygenase) catalyzes the first step of the Calvin cycle, fixing carbon dioxide to ribulose bisphosphate (RuBP).

Front

What are G3P molecules and their significance in photosynthesis?

Back

G3P (glyceraldehyde-3-phosphate) molecules are the products of the Calvin cycle that can be used to form glucose and regenerate RuBP.

Front

What is the final product of the Calvin cycle?

Back

The final products of the Calvin cycle are glucose and other carbohydrates.