Biology Cell MDCAT 2018
PMDC Verified Question 119 of 143
These structures are involved in the breakdown of old organelles:
A
Lysosomes
B
Leucoplasts
C
Peroxisomes
D
Glyoxysomes
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Lysosomes
Concept: Cellular homeostasis requires the recycling of damaged or obsolete cellular components (autophagy).

Solution: Lysosomes are membrane-bound vesicles containing powerful hydrolytic enzymes. They fuse with worn-out organelles to break them down into basic monomers, a process known as autophagy.

Distractor Autopsy:
  • Peroxisomes/Glyoxysomes: Involved in lipid metabolism and detoxification.
  • Leucoplasts: Starch/lipid storage organelles in plants.

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