Biology Biomolecules ETEA 2023 Retake
PMDC Verified Question 38 of 142
Which of the following is opposite of condensation reaction?
A
Decarboxylation
B
Hydration
C
Hydrolysis
D
Dehydration
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Hydrolysis
Concept:

Biological polymers are built and destroyed through opposing water-mediated chemical reactions.

Solution:

  • Condensation (dehydration synthesis) joins two smaller monomers together into a larger polymer while removing and expelling a water molecule.


  • The exact chemical opposite is Hydrolysis, which forcefully introduces a water molecule to cleave the covalent bond holding the polymer together, splitting it back into two smaller monomers.


Why other options are incorrect:

  • Dehydration: This is merely a synonym for condensation, not the opposite.


  • Hydration: Simply dissolving or surrounding a molecule with water (physical change), not cleaving a covalent bond.


  • Decarboxylation: Removing a carbon dioxide group, entirely unrelated to polymer backbone synthesis.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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