Enzyme classes: kinases vs. phosphatases
An enzyme transfers a phosphate group from ATP to glucose. To which enzyme class does it belong?
Answer C: explanation for every choice
A
Hydrolases use water to cleave bonds. Phosphatases, which remove phosphates, are hydrolases.
B
Ligases join two molecules using energy from ATP, such as DNA ligase.
C
Correct. Kinases move a phosphate group from one molecule to another, so they are transferases.
D
Isomerases rearrange atoms within one molecule.
TakeawayKinases are transferases. Phosphatases are hydrolases.
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Reviewed 2026-11-05 by a medical student. Spot an error? Report it with question ID bb26.