What Happens in the Second Phase of the Calvin Cycle

question 49

Multiple Choice

What happens in the second phase of the Calvin cycle?

• A) A molecule of CO₂ reacts with a phosphorylated five-carbon compound, ribulose bisphosphate.
• B) Two G3P molecules are removed from the cycle.
• C) ATP and NADPH are used to convert the PGA molecules to glyceraldehyde-3-phosphate.
• D) Thirty carbons and their associated atoms become rearranged into six molecules of ribulose phosphate.
• E) RuBP molecules begin the process of CO₂ fixation.

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Definitions:

Correlational Method

A research methodology that examines the relationship between two or more variables to determine if a correlation exists.

Experimental Group

The group in an experiment that receives the variable being tested, which is contrasted with a control group that does not receive the experimental treatment.

Independent Variable

An element or factor in an experiment that is deliberately manipulated to observe its effect on the dependent variable.

Dependent Variable

In an experiment, the variable that is being tested and measured, expected to change as a result of manipulations to the independent variable.