Which of the following ribosomes are engaged in protein synthesis in the animal cell?
Correct answer: A. Ribosomes which occur on nuclear membrane and ER
- A. Ribosomes which occur on 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 present in nuclear membrane and endoplasmic reticulum take part in protein synthesis. Two or more ribosomes simultaneously engaged in protein synthesis on the same mRNA strand form polyribosomes. The ribosome functions as a template, bringing together different components required for protein synthesis.
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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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