Biology Biomolecules SZABMU 2022
PMDC Verified Question 82 of 142
Which of the following carbohydrates are the sweetest among all?
A
Monosaccharides
B
Polysaccharides
C
Oligosaccharides
D
Disaccharides
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Monosaccharides
Concept:

Sweetness is inversely proportional to the complexity and size of the carbohydrate polymer.

Solution:

  • Monosaccharides (like fructose and glucose) are structurally the smallest and simplest sugars.


  • Their small size and exposed functional groups easily interact with the sweet-taste receptors on the tongue, making them biologically the sweetest class of carbohydrates. (Fructose, a monosaccharide, is notoriously the sweetest naturally occurring sugar).


Why other options are incorrect:

  • As sugar chains grow longer (Disaccharides → Oligosaccharides → Polysaccharides), they lose their ability to interact with taste receptors. Polysaccharides like starch and cellulose are entirely tasteless.

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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