Biochemistry : Other Calvin Cycle Concepts

Study concepts, example questions & explanations for Biochemistry

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Example Questions

Example Question #1 : Carbohydrate Metabolism

What are the three stages of the Calvin cycle?

Possible Answers:

Fixation, carboxylation, and regeneration 

Reduction, oxidation, and regeneration

Fixation, oxidation, and regeneration

Carboxylation, reduction, and regeneration

Fixation, reduction, and regeneration

Correct answer:

Fixation, reduction, and regeneration

Explanation:

The stages of the Calvin cycle in the order that they occur are fixation, reduction, and then regeneration.  While carboxylation does occur as a part of the first stage, it is not what defines that stage.

Example Question #2 : Carbohydrate Metabolism

Which of the following is not true of the Calvin cycle?

Possible Answers:

NADPH and ATP are required to initiate the Calvin cycle

All of these are true of the Calvin cycle

The Calvin cycle does not need light to function

The Calvin cycle occurs in the stroma of a chloroplast

The first step of the Calvin cycle is carbon fixation

Correct answer:

The Calvin cycle does not need light to function

Explanation:

Despite the Calvin cycle's other name (light independent reactions), light is indirectly required for this process to function. All other choices are true of the Calvin cycle.

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