Biology Biomolecules NUMS 2023
PMDC Verified Question 47 of 142
These carbohydrates are sweetest among all carbohydrates:
A
Disaccharides
B
Monosaccharides
C
Oligosaccharides
D
Polysaccharides
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: Monosaccharides
Concept:

The sensation of sweetness is mediated by taste-bud receptors which bind specifically to small, highly soluble molecules.

Solution:

  • As the chain length of a carbohydrate polymer increases, its solubility and its physical ability to fit into tongue receptors rapidly decrease.


  • Monosaccharides (like fructose and glucose) are the smallest, simplest, and most soluble sugar units available, rendering them the absolute sweetest of all carbohydrate classes.


Why other options are incorrect:

  • Disaccharides (sucrose): Sweet, but generally less so than fructose (a monosaccharide).


  • Oligosaccharides & Polysaccharides: As they grow massive (like starch or cellulose), they become completely tasteless and insoluble in the mouth.

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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