Calvin Cycle

What is the main purpose of the Calvin Cycle?

• To convert carbon dioxide into glucose.

• To produce oxygen from water.

• To absorb sunlight for photosynthesis.

• To break down glucose into energy.

What is the end product of the Calvin Cycle that can be used to form glucose?

• G3P (Glyceraldehyde-3-phosphate)

• ATP (Adenosine Triphosphate)

• NADPH (Nicotinamide Adenine Dinucleotide Phosphate)

• RuBP (Ribulose bisphosphate)

What is the role of ATP in the Calvin Cycle?

• It provides energy for the conversion of 3-PGA to G3P and for regenerating RuBP.

• It acts as a substrate for the synthesis of glucose.

• It is used to transport carbon dioxide into the chloroplasts.

• It helps in the absorption of sunlight during photosynthesis.

What molecule is produced as a result of the Calvin Cycle?

• G3P (Glyceraldehyde-3-phosphate)

• ATP (Adenosine Triphosphate)

• NADPH (Nicotinamide Adenine Dinucleotide Phosphate)

• RuBP (Ribulose bisphosphate)

What enzyme catalyzes the first step of the Calvin Cycle?

• Rubisco (Ribulose bisphosphate carboxylase/oxygenase)

• Phosphofructokinase

• Hexokinase

• ATP synthase

How many carbons does G3P have?

• 2

• 3

• 4

• 5

What are the three main phases of the Calvin Cycle?

• Carbon fixation, Reduction, Regeneration of RuBP

• Photosynthesis, Respiration, Fermentation

• Light reaction, Dark reaction, Calvin cycle

• Oxidation, Reduction, Hydrolysis

What is the role of NADPH in the Calvin Cycle?

• It provides energy for ATP synthesis.

• It provides reducing power for the conversion of 3-PGA to G3P.

• It acts as a substrate for carbon fixation.

• It transports electrons to the electron transport chain.

What is the first stage of the Calvin Cycle?

• Carbon fixation

• Reduction phase

• Regeneration of RuBP

• Light-dependent reactions

What happens to the remaining G3P molecules in the last step of the dark reactions?

• They are converted into glucose.

• They are reshuffled to make RuBP by adding ATP.

• They are used to produce oxygen.

• They are stored as starch.