(i) The interior of bacterial cell seems simple and
granular because the membrane bound organelles
are not present in it.
(ii) Mucilage, cell wall and plasma membrane are
together called cell envelope.
(iii) Mucilage or glycocalyx gives gummy or sticky trait
to cells.
Though it is not essential for bacterial survival,
glycocalyx has several functions such as
(a) Protection from dessication and toxins.
(b) Preventing host phagocytes to get attached to
the bacterium.
(c) Holding cells together.
(d) Storing chemicals for virulence.