THE CELL
STRUCTURE AND FUNCTION OF THE CELL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The breakdown of waste material
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The conversion of radiant energy to glucose
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The synthesis of new proteins
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The replication of nucleic acids
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Detailed explanation-1: -Explanation: After a strand of DNA is transcribed into RNA, it is sent to the ribosomes to undergo translation, where it reads the code on RNA and makes a corresponding amino acid based on the RNAs base pairs. A chain of amino acids will make up a protein.
Detailed explanation-2: -Ribosomes on the rough endoplasmic reticulum are called ‘membrane bound’ and are responsible for the assembly of many proteins. This process is called translation.
Detailed explanation-3: -Ribosomes are the sites in a cell in which protein synthesis takes place.
Detailed explanation-4: -The ER is the largest organelle in the cell and is a major site of protein synthesis and transport, protein folding, lipid and steroid synthesis, carbohydrate metabolism and calcium storage [1–7].
Detailed explanation-5: -SRP binds the ribosome as well as the signal sequence, inhibiting further translation and targeting the entire complex (the SRP, ribosome, and growing polypeptide chain) to the rough ER by binding to the SRP receptor on the ER membrane (Figure 9.7).