OBJECTIVE LIFE SCIENCE
CELL BIOLOGY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
respiration
|
|
protein synthesis
|
|
cell replication
|
|
DNA replication
|
Detailed explanation-1: -The ribosome is universally responsible for synthesizing proteins by translating the genetic code transcribed in mRNA into an amino acid sequence. Ribosomes use cellular accessory proteins, soluble transfer RNAs, and metabolic energy to accomplish the initiation, elongation, and termination of peptide synthesis.
Detailed explanation-2: -Ribosomes have two main functions-decoding the message and the formation of peptide bonds. These two activities reside in two large ribonucleoprotein particles (RNPs) of unequal size, the ribosomal subunits.
Detailed explanation-3: -The purpose of protein synthesis is simply to create a polypeptide–a protein made out of a chain of amino acids. In a hair follicle cell, a protein called keratin is made. Lots of it. Many ribosomes can be working on a single strand of mRNA at once.
Detailed explanation-4: -Ribosomes are macromolecular devices that execute biological protein synthesis in all living cells (mRNA translation). Ribosomes generate polypeptide chains by linking amino acids in the order dictated by the codons of messenger RNA (mRNA) molecules.
Detailed explanation-5: -Both eukaryotic and prokaryotic ribosomes act like protein synthesis factories. Ribosomes located in the cytosol or rough endoplasmic reticulum may be used for protein synthesis.