Biology Cell SZABMU 2024 Reconduct
PMDC Verified Question 21 of 143
Which enzyme is missing in the patient of Tay-Sach's disease?
A
Carbohydrate digesting enzyme
B
Protein digesting enzyme
C
Lipid digesting enzyme
D
Fatty acid digesting enzyme
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Lipid digesting enzyme
Concept: Tay-Sachs targets the lipid-rich environment of the central nervous system.

Solution: The specific enzyme missing in Tay-Sachs disease is Hexosaminidase A, which is a lipid digesting enzyme. Without it, complex lipids called gangliosides accumulate to toxic levels in brain cells, causing severe neurological decline.

Distractor Autopsy: While proteins and carbohydrates are digested by other lysosomal enzymes (like proteases and glycosidases), Tay-Sachs is explicitly a lipid storage disorder.

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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