Answer: Self-digestion of organelles by lysosomes.
- A Equal partitioning of cytoplasm and organelles between two daughter cells
- B Self-digestion of organelles by lysosomes
- C Unwinding and copying of the genome ahead of mitotic division
- D Secretion of newly synthesized proteins out of the cell via vesicle fusion
Correct answer: B. Self-digestion of organelles by lysosomes
Explanation: Autophagy: worn-out organelles or cytoplasmic components are enclosed in autophagosomes, then fused with lysosomes for degradation.
Animal cell structure with major organelles labeled. Image: LadyofHats (Mariana Ruiz), Public Domain, via Wikimedia Commons.
Concept context
Cell theory, prokaryotic vs eukaryotic cells, organelles and their functions. Foundation of all biology.