A molecular ratchet
A) allows processes to be reversed after they are initiated.
B) has equal thresholds for activation and inactivation.
C) is used in synthetic biology but not natural systems.
D) requires more stimulation to turn itself on than to keep itself on.
E) is an intrinsic rather than emergent property.

Question

Quizplus · Accepted Answer

A molecular ratchet is a system that requires more energy to turn it off than it does to keep it on. This results in a process that only moves in one direction, like a ratchet that prevents movement in the opposite direction.

A Molecular Ratchet