NEET 2022 · BiologyEndomembranePrevious Year Question
Which of the following statements with respect to Endoplasmic Reticulum is incorrect?
Answer: (C) In prokaryotes only RER are present. Answer: (C) In prokaryotes only RER are present Solution: This statement is incorrect.
- A.RER has ribosomes attached to ER
- B.SER is devoid of ribosomes
- C.In prokaryotes only RER are present✓
- D.SER are the sites for lipid synthesis
Correct Answer
(C) In prokaryotes only RER are present
Solution & Explanation
Answer: (C) In prokaryotes only RER are present Solution: This statement is incorrect. Prokaryotic cells lack membrane-bound organelles such as the ER altogether, so neither RER nor SER is present in them. The other statements are correct: RER bears ribosomes, SER is devoid of ribosomes, and SER is the major site of lipid synthesis. NCERT Reference: Ch 8, p.88, line 37: "The prokaryotic cells lack such membrane bound organelles."
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