Question

these structures are responsible for giving the rough endoplasmic reticulum its bumpy appearance.
○ peroxisomes
○ ribosomes
○ lysosomes
○ vesicles

Explanation:

To solve this, we analyze each option:

• Peroxisomes: Involved in oxidation reactions, not related to RER's appearance.
• Ribosomes: The Rough Endoplasmic Reticulum (RER) has ribosomes attached to its surface, which gives it the "bumpy" or rough appearance.
• Lysosomes: Digestive organelles, not associated with RER's structure.
• Vesicles: Involved in transport, not responsible for RER's bumpy look.

Answer:

B. ribosomes