Answer: Receptor-mediated endocytosis.
- A Exocytosis of secretory vesicles fusing with the plasma membrane
- B Receptor-mediated endocytosis
- C Engulfment and lysosomal digestion of the cell's own organelles
- D Equal separation of duplicated chromosomes during mitotic division
Correct answer: B. Receptor-mediated endocytosis
Explanation: Clathrin-coated pits and vesicles mediate receptor-mediated endocytosis (e.g., LDL uptake, transferrin internalization).
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.