Some Reaction Steps in the Glycolytic Pathway Have Positive Standard

question 8

Multiple Choice

Some reaction steps in the glycolytic pathway have positive standard free energy changes.Which statements apply?

• A)The standard free energy for these steps is not the same as the actual free energy change in cells.The actual free energy change must be negative or zero.
• B)The reaction steps with positive standard free energy changes are likely to be regulatory steps for the pathway.
• C)The steps with a positive standard free energy change are the fastest steps in the pathway.
• D)The steps with a positive standard free energy change must be coupled to an ATP →ADP conversion.

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