Biology Biomolecules BUMHS 2022
PMDC Verified Question 84 of 142
Diastase/amylase acts on:
A
Lactose
B
Starch
C
Sucrose
D
Maltose
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: Starch
Concept:

Enzymes are highly substrate-specific.

Solution:

  • Amylase (also historically called diastase) is specifically designed to recognize and cleave the α-1,4-glycosidic linkages found exclusively in starch (and glycogen).


  • It breaks the large starch polymer down into smaller fragments and ultimately into the disaccharide maltose.


Why other options are incorrect:

  • Lactose, Sucrose, Maltose: These are disaccharides digested by entirely different, specific enzymes (lactase, sucrase, and maltase, respectively).

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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