Cellular Energy

AP Biology· difficulty 2/5

Reaction progress Free energy +ΔG

The diagram represents an endergonic reaction. How is such a reaction driven forward in cells?

  • A

    Addition of an irreversible inhibitor

  • B

    Spontaneous occurrence at standard temperature and pressure

  • C

    Removal of all enzymes from the cytoplasm

  • D

    Coupling with an exergonic reaction such as ATP hydrolysis

    check_circle

Explanation

Endergonic reactions (ΔG > 0) are nonspontaneous. Cells couple them to exergonic reactions, most commonly ATP hydrolysis, to make the overall ΔG negative.

Want 10 more like this — adaptive to your weak spots?

Related questions