When dealing with stable isotopes,enzymes tend to favor
A) the lighter isotope.
B) the heavier isotope.
C) the isotopes in about equal proportions.
D) either the lighter or the heavier isotope, depending on environmental conditions.

Question

Quizplus · Accepted Answer

Enzymes tend to favor the lighter isotope because they have a lower mass and require less energy to react. Isotopic discrimination by enzymes can be observed in a variety of metabolic processes, such as photosynthesis and protein synthesis.

When Dealing with Stable Isotopes,enzymes Tend to Favor