OBJECTIVE LIFE SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Where are proteins synthesized by free ribosomes used?
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Outside the cell after secretion
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Within the nucleus
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Within the lysosomes
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Within the cytoplasm
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Explanation:
Detailed explanation-1: -Ribosomes are the sites in a cell in which protein synthesis takes place.
Detailed explanation-2: -Free ribosomes, unattached to any membrane, synthesize all other proteins encoded by the nuclear genome. Membrane-bound and free ribosomes are structurally and functionally identical. They differ only in the proteins they are making at any given time.
Detailed explanation-3: -Free ribosomes are located in the cytosol and are able to move throughout the cell, whereas fixed ribosomes are attached to the rER. Free ribosomes synthesize proteins that are released into the cytosol and used within the cell.
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