Why does the Rough Endoplasmic Reticulum look 'rough' under a microscope?
- A. Due to the presence of ribosomes on its surface ✓
- B. Due to the absence of ribosomes on its surface.
- C. Due to the presence of lysosomes on its surface
- D. Due to the presence of mitochondria on its surface
Correct Answer: A. Due to the presence of ribosomes on its surface
Explanation
The Rough Endoplasmic Reticulum (RER) is studded with ribosomes on its outer surface, giving it a granular or 'rough' appearance under electron microscopy.
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