Light Dependent Rxns/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 produced in the light-dependent reactions.

Front

Where does the Calvin Cycle occur?

Back

The Calvin Cycle occurs in the stroma of chloroplasts.

Front

What is the role of ATP Synthase in photosynthesis?

Back

ATP Synthase is an enzyme that synthesizes ATP from ADP and inorganic phosphate as protons (H+) flow through it during the light-dependent reactions.

Front

What happens to electrons after they are excited in chlorophyll?

Back

After reaching an excited state, electrons jump from the chlorophyll molecules to the electron transport chain.

Front

What is G3P and its significance in the Calvin Cycle?

Back

G3P (glyceraldehyde-3-phosphate) is a three-carbon sugar produced in the Calvin Cycle; it is used to regenerate RuBP and to synthesize glucose.

Front

What happens to the majority of G3P produced in the Calvin Cycle?

Back

Out of 12 G3P molecules produced, 10 are used to regenerate RuBP, while 2 are used to create glucose.

Front

Where does the carbon dioxide used in the Calvin Cycle come from?

Back

The CO2 used in the Calvin Cycle originates from diffusion through the stoma of the leaf.

Front

What is the primary function of the light-dependent reactions?

Back

The primary function of the light-dependent reactions is to convert light energy into chemical energy in the form of ATP and NADPH.

Front

What are the products of the light-dependent reactions?

Back

The products of the light-dependent reactions are ATP, NADPH, and oxygen.

Front

What is RuBP and its role in the Calvin Cycle?

Back

RuBP (ribulose bisphosphate) is a five-carbon sugar that combines with CO2 to initiate the Calvin Cycle.