Biology Enzymes ETEA 2019
PMDC Verified Question 67 of 79
Phosphatases belong to which group of the following?
A
Ligase
B
Hydrolases
C
Lyases
D
None of the above
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: Hydrolases
Concept:

Enzymes are universally classified into six main classes based on the specific type of chemical reaction they catalyze.

Solution:

  • Phosphatases are enzymes that catalyze the removal of a phosphate group from a molecule.
  • They achieve this cleavage by using a molecule of water to break the chemical bond (a process known as hydrolysis).
  • Therefore, phosphatases are strictly categorized under the broader enzyme class of Hydrolases.


Why other options are incorrect:

Ligases join two molecules together (often using ATP). Lyases break chemical bonds without using water. Since they use water to break bonds, they must be hydrolases.

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