Which of the following statements is not true about the endoplasmic reticulum?
Correct answer: D. It is involved in the formation of cell wall.
- A. It helps in the transport of proteins between various regions of cytoplasm.
- B. It forms cytoplasmic framework for biochemical activities.
- C. It is involved in the formation of lysosomes.
- D. It is involved in the formation of cell wall.
Explanation
The endoplasmic reticulum (ER) is not involved in the formation of the cell wall. The cell wall is a rigid structure that surrounds the plasma membrane of plant cells. It is made up of cellulose, hemicellulose, and pectin. The ER is not involved in the synthesis of these molecules.
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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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