Which of these bacterial components is least likely to contain useful
antigens?
(a) Cell wall
(b) Flagella
(c) Ribosomes
(d) Capsule
Answers
Answer:
ribosomes
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Answer:
In (c)Ribosomes of the bacteria antigens are least likely to be present.
Explanation:
Option(a) The cell wall of the bacteria is composed of the substance peptidoglycans which is made up of polysaccharides and peptide chains.
Antigens are substance or molecule that binds to particular receptors present on the surface of another cell.
As the antigens are mostly of protein nature and also sometimes seen to have polysaccharide as a component, and as the cell wall of the bacteria has the substance peptidoglycan which is made up of these two components, there is a high chance the bacterial antigens are present here.
Option(b)Flagella also are likely to have antigens as they mostly interact with the environment outside the bacteria's body, hence they must have antigens to bind to the receptors present on the nearby surface.
Option(c) Ribosomes are least likely to have the antigens as they are present in the cytoplasm of the bacteria and generally do not interact with the outer environment.
Option(d) Capsule also must have antigens as they protect the bacteria and act as the tough layer around it. So it also naturally comes in contact with the outer environment.