Coupling Reactions

Question 1

Define energy coupling reactions

Answer 1

The transfer of energy from an exergonic reaction to an endergonic reaction

Question 2

What is the purpose of a coupling reaction?

Answer 2

To drive the endergonic reaction to completion

Question 3

What are all endergonic reactions in the body coupled to?

Answer 3

Exergonic reactions

Question 4

Is the energy required by an endergonic reaction more or less than the energy released by the exergonic reaction?

Answer 4

Less

Question 5

Do catabolic delta G have negative or positive values?

Answer 5

Negative because they are exergonic reactions which release energy

Question 6

Do anabolic reactions have a negative or positive delta G values?

Answer 6

Positive because they are endergonic and energy is absorbed

Question 7

How do you tell if an arrow is endergonic or exergonic?

Answer 7

If it is endergonic then it is anabolic and if it is exergonic then it is catabolic