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Category: Bacteriology

Differences between Exotoxins and Endotoxins

What is a main difference between endotoxins and Exotoxins quizlet ?, Are Exotoxins more potent than endotoxins ?, What are examples of endotoxins ?, What are the characteristics of Exotoxins ?, exotoxin and endotoxin ppt, differences between exotoxins and endotoxins quizlet ,similarities between endotoxins and exotoxins , types of exotoxins, difference between exotoxin and endotoxin slideshare, compare exotoxins and endotoxins quizlet, what is endotoxin endotoxin examples

Exotoxins are usually heat labile proteins secreted by certain species of bacteria that diffuse into the surrounding environment.
Endotoxins are heat-stable lipopolysaccharide-protein complexes that form structural components of the cell wall of gram-negative bacteria and are released only by cell lysis or death of bacteria.

Bacterial Flagella

Bacterial Flagella

Bacterial Flagella: Structure, importance and examples of flagellated bacteria Bacterial flagella are long, thin (about 20 nm) whip-shaped appendages that move bacteria toward nutrients and other attractants. The flagella are free at one end and attached to the cell at the other end. The flagella can never be seen directly under the light microscope, but only after staining with special flagella stains that increase its diameter. Flagella are usually found in gram-negative bacilli. Gram-positive rods […]

Bacterial Capsule

Bacterial Capsule

The bacterial capsule is a large structure of many bacteria. It is a layer of polysaccharide that is found outside the cell envelope and is therefore considered part of the outer envelope of a bacterial cell. It is a well organized coat, it does not wash easily, and it can be the cause of various diseases. The capsule has a 0.2 µm thick viscous layer firmly attached to the cell wall of some encapsulated bacteria. […]

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