Why is ATP an important molecule in metabolism?
a. It provides energy coupling between exergonic and endergonic reactions.
b. Its hydrolysis provides an input of free energy for exergonic reactions.
c. Its terminal phosphate group contains a strong covalent bond that, when hydrolyzed, releases free energy.
d. Its terminal phosphate bond has higher energy than the other two phosphate bonds.

Question

22-11-2019
Biology

contestada

Why is ATP an important molecule in metabolism?
a. It provides energy coupling between exergonic and endergonic reactions.
b. Its hydrolysis provides an input of free energy for exergonic reactions.
c. Its terminal phosphate group contains a strong covalent bond that, when hydrolyzed, releases free energy.
d. Its terminal phosphate bond has higher energy than the other two phosphate bonds.

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pandeyarindam296 pandeyarindam296 · Answer 1 · 2019-11-29T04:17:05+01:00

Answer:

The correct answer is a it provides energy coupling between exergonic and endergonic reactions.

Explanation:

ATP or adenosine triphosphate is an energy rich compound that undergo hydrolysis to generate -30.5kj/mol free energy.

ATP helps in the coupling of endergonic reaction reaction(reactions with positive free energy change) which are thermodynamically unfavorable with exergonic reactions(reactions with negative free energy change) which are thermodynamically favorable.

Thus ATP helps in the energy coupling between exergonic reaction and endergonic reactions.