NURSING EXAM QUESTIONS
MICROBIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Is exported into another cell
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Exported outside the cell
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Stays within the cell
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None of the above
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Detailed explanation-1: -Without ribosome biogenesis, translation of mRNA into protein ceases and cellular growth stops.
Detailed explanation-2: -After they leave the ribosome most proteins are folded or modified in some way. This is called ‘post translational modification’.
Detailed explanation-3: -The ribosomes, found within the rough endoplasmic reticulum or floating in the cytoplasm, are the main site of protein synthesis. The ribosome reads the mRNA and tRNA molecules add amino acid molecules, building chains of amino acid molecules called polypeptide chains.
Detailed explanation-4: -(a) If ribosomes are removed from the cell, there will be no protein synthesis. The cell will thus lose the capacity to perform further due to lack of metabolic products. The cell will eventually die.