- A Rough ER
- B Smooth ER
- C Golgi apparatus
- D Ribosome
Correct answer: B. Smooth ER
Explanation: Smooth ER (no ribosomes) is the site of lipid and cholesterol synthesis, and also involved in detoxification.
Concept context
Cell theory, prokaryotic vs eukaryotic cells, organelles and their functions. Foundation of all biology.