Question

Q35). Since AMP can also be hydrolyzed to release energy, why do cells bother to use ATP (which requires the cell to have more phosphate) to power cellular reactions?

A) ATP fits better into enzymes.
B) ATP hydrolysis releases more energy than AMP hydrolysis.
C) ATP stores for a longer time than AMP.
D) Cells have more than enough phosphate, and it serves few roles anyway.

Answer 1

Cells use ATP to power cellular reactions because ATP hydrolysis releases more energy than AMP hydrolysis. This energy is used to perform cellular work through energy coupling. One example of cellular work powered by ATP involves a sodium-potassium pump.B) ATP hydrolysis releases more energy than AMP hydrolysis.

Step-by-step explanation:

Cells bother to use ATP to power cellular reactions because ATP hydrolysis releases more energy than AMP hydrolysis. The energy released from ATP hydrolysis is used to perform cellular work through a process called energy coupling. One example of energy coupling using ATP involves a sodium-potassium pump that drives ions across the cell membrane. ATP donates its phosphate group to the pump, powering its conformational changes and allowing it to transport ions.