Calvin Cycle

Front

What is the Calvin Cycle?

Back

The Calvin Cycle is a series of biochemical reactions that take place in the stroma of chloroplasts in photosynthetic organisms, where carbon dioxide is converted into glucose using ATP and NADPH.

Front

Where does the Calvin Cycle occur?

Back

The Calvin Cycle occurs in the stroma of chloroplasts.

Front

What is the main product of the Calvin Cycle?

Back

The main product of the Calvin Cycle is G3P (glyceraldehyde-3-phosphate), which can be used to form glucose and other carbohydrates.

Front

What role does Rubisco play in the Calvin Cycle?

Back

Rubisco (ribulose bisphosphate carboxylase/oxygenase) is an enzyme that catalyzes the first step of the Calvin Cycle, fixing carbon dioxide to ribulose bisphosphate (RuBP).

Front

How many G3P molecules are produced in one turn of the Calvin Cycle?

Back

One turn of the Calvin Cycle produces one G3P molecule.

Front

How many G3P molecules are needed to synthesize one glucose molecule?

Back

Two G3P molecules are needed to synthesize one glucose molecule.

Front

What provides the energy for the Calvin Cycle?

Back

ATP provides the energy for the Calvin Cycle.

Front

What is the role of NADPH in the Calvin Cycle?

Back

NADPH provides the reducing power (electrons) needed to convert 3-phosphoglycerate into G3P.

Front

What is the significance of the Calvin Cycle in photosynthesis?

Back

The Calvin Cycle is crucial for converting carbon dioxide into organic compounds, which are essential for the growth and energy needs of plants.

Front

What are the three main phases of the Calvin Cycle?

Back

The three main phases of the Calvin Cycle are carbon fixation, reduction, and regeneration of ribulose bisphosphate (RuBP).