Asked by Autumn Henkle on May 14, 2024
Verified
An endergonic reaction can proceed only if it absorbs
A) randomly available free energy.
B) less free energy than is released by a coupled exergonic reaction.
C) more free energy than is released by a coupled exergonic reaction.
D) less free energy than is released by a coupled endergonic reaction.
E) the same amount of free energy that is absorbed by the enzymatic breakdown of proteins.
Endergonic Reaction
A nonspontaneous reaction; a reaction requiring a net input of free energy. Compare with exergonic reaction.
Exergonic Reaction
A reaction characterized by a release of free energy. Also called spontaneous reaction. Compare with endergonic reaction.
Free Energy
The amount of internal energy within a system that is available to perform work, as in chemical reactions and physical processes.
- Contrast endergonic and exergonic reactions, focusing on their implications for metabolic pathways.
Verified Answer
CS
Cameron SiasiMay 15, 2024
Final Answer :
B
Explanation :
Endergonic reactions require an input of energy to proceed and can be coupled to exergonic reactions, where the energy released by the exergonic reaction is used to drive the endergonic reaction. For this to happen, the amount of free energy released by the exergonic reaction must be greater than the amount of free energy absorbed by the endergonic reaction.
Learning Objectives
- Contrast endergonic and exergonic reactions, focusing on their implications for metabolic pathways.