An outer coat consisting of a dense, well-defined polymer layer surrounding a cell and used in attachment is called a
A) capsule.
B) cytoplasmic membrane.
C) lipopolysaccharide layer.
D) pilus.

Question

Quizplus · Accepted Answer

A capsule is an outer coat that consists of a dense, well-defined polymer layer surrounding a cell and is used for attachment. It provides additional protection against immune defenses by preventing phagocytosis, complement-mediated lysis, and the binding of specific antibodies.

The cytoplasmic membrane is a phospholipid bilayer that serves as a barrier between the cytoplasm and the external environment.

The lipopolysaccharide layer is a component of the outer membrane of gram-negative bacteria that plays a role in maintaining structural integrity and preventing the entry of antibiotics and other harmful molecules.

A pilus is a hair-like appendage found on the surface of some bacteria that is involved in conjugation (the transfer of genetic material between cells).

An Outer Coat Consisting of a Dense, Well-Defined Polymer Layer