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Refer to the given structure of a prokar...

Refer to the given structure of a prokaryotic cell and select the correct statement regarding it.

A

P is a layer of non-cellulosic polysaccharides

B

Q is double layered in Gram +ve bacteria whereas it is single layered in Gram - ve bacteria

C

R is an impermeable covering that restricts entry and exit of molecules into and out of the cell.

D

S could be tubular outgrowths that are involved in locomotion only.

Text Solution

Verified by Experts

In the given structure of a prokaryotic cell, P refers to capsule, Q refers to cell wall, R refers to plasma membrane and S refers to pilus. Cell wall is single layered in Gram +ve bacteria and double layered is Gram -ve bacteria. Plasma membrane is a selectively permeable membrane that has structure similar to typical membrane. Pili help in conjugation.
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