Cell wall of Gram-negative bacteria Lipopolysaccharide (LPS) layer also called the outer membrane is the outermost layer present only in the cell wall of gram-negative bacteria. Braun’s...
Category: Microbiology for Beginners
Found mainly in Gram-negative organisms, fimbriae or pili (singular: pilus) are hair-like filaments (tiny hollow projections) that extend from the cell membrane into the external environment. A pilus...
Flagella (singular, flagellum) are the locomotory structures of many prokaryotes. Most protozoa and some bacteria are motile. Protozoa use flagella, cilia, or pseudopods, whereas motile bacteria move...
Bacterial spores are highly resistant, dormant structures (i.e. no metabolic activity) formed in response to adverse environmental conditions. As bacterial spores are formed within the parent cell,...
Some bacterial cells are surrounded by a viscous substance forming a covering layer or envelope around the cell wall, called a capsule. Bacterial capsules can be visualized by light microscopy using...
I firmly believe that Microbiology is the most exciting subject, blended with many fascinating, funny small creatures invisible to the naked eyes of humans. The world of these tiny organisms is...
