Which of the following statement is incorrect regarding endoplasmic reticulum ?
Correct answer: E. None
- A. Plasma cells have RER in abundance
- B. RBCs lack both RER and SER
- C. SER is more than RER in adipose tissue
- D. Hepatocytes have both RER and SER
- E. None
Explanation
The correct answer is Option E: 'None', which signifies that all the other statements regarding endoplasmic reticulum are correct. Each of the other options accurately describes characteristics of the rough and smooth endoplasmic reticulum in different cell types.Option A is correct because plasma cells indeed have a high abundance of rough endoplasmic reticulum due to their role in antibody production.Option B is also correct, as red blood cells lack both types of endoplasmic reticulum after maturation.Option C is correct because adipose tissue contains more smooth endoplasmic reticulum than rough endoplasmic reticulum, reflecting its function in lipid metabolism.Finally, Option D is correct because hepatocytes contain both types of endoplasmic reticulum to support their diverse metabolic functions. Thus, the only incorrect statement is 'None'.
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Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
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