IMAT 2024 · Question 17

Q17 - ATP and bioenergetics

Which kind of reaction is ATP hydrolysis? A) exergonic B) condensation C) Lipolysis D) endergonic E) Oxidation-reduction
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The correct answer is A) exergonic.

ATP hydrolysis releases energy (about −30.5 kJ/mol), so it's exergonic.

Endergonic (D) describes the reverse reaction, making ATP. Condensation is also the reverse, since it releases water instead of using it. No electrons change hands, so it isn't redox.

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