Biology Biomolecules SZABMU 2022
PMDC Verified Question 98 of 142
Three hydrophobic fatty acid tails and a glycerol molecule join to form:
A
Monoglyceride
B
Diglyceride
C
Triglyceride
D
Phospholipid
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Triglyceride
Concept:

Acylglycerols are formed by linking fatty acid chains to the three hydroxyl groups of a glycerol backbone.

Solution:

  • Glycerol is a 3-carbon alcohol with exactly three reactive hydroxyl (\(-OH\)) sites.


  • When all three of these sites undergo condensation reactions to bond with exactly three distinct fatty acid tails, the resulting molecule is a neutral fat scientifically known as a Triglyceride (or Triacylglycerol).


Why other options are incorrect:

  • Monoglyceride / Diglyceride: Contain only one or two fatty acid tails, respectively.


  • Phospholipid: Contains exactly two fatty acid tails, with the third glycerol site occupied by a charged phosphate group.

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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