A Levels Biology (9700)•9700/14/M/J/25

Explanation
Golgi Apparatus Functions in Eukaryotic Cells
Steps:
- Identify lysosome production: Golgi modifies and packages enzymes into lysosomes.
- Identify polypeptide modification: Golgi adds sugars and other groups to polypeptides from ER.
- Identify exocytosis: This is vesicle fusion with plasma membrane, not a direct Golgi function.
- Match to options: Golgi handles 1 and 2, but not 3.
Why B is correct:
- Golgi apparatus processes and sorts proteins, including polypeptide modification in its cisternae and lysosome formation by budding off vesicles with hydrolytic enzymes.
Why the others are wrong:
- A includes exocytosis, which occurs at the cell membrane after Golgi packaging.
- C excludes polypeptide modification, a core Golgi role in glycosylation.
- D excludes lysosome production, which relies on Golgi packaging of lysosomal enzymes.
Final answer: B
Topic: Cells as the basic units of living organisms
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