Which of the following ribosomes are engaged in protein synthesis in the animal cell?
Correct answer: A. Ribosomes which occur on the nuclear membrane and ER
- A. Ribosomes which occur on the nuclear membrane and ER
- B. Ribosomes of only cytosol
- C. Ribosomes of only nucleolus and cytosol
- D. Ribosomes of only mitochondria and cytosol
Explanation
Ribosomes attached to the nuclear membrane and endoplasmic reticulum (ER) are involved in synthesizing proteins destined for secretion or for use in the cell membrane. These ribosomes, often referred to as membrane-bound ribosomes, work in conjunction with the ER to ensure proteins are properly synthesized and transported.
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About Cell Structure and Function
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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