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Properties Endotoxin Exotoxin

Chemical nature Lipopolysaccharide protein

Mol Weight 10 kDa 50-1000 kDa

Relationship to cell Part of outer membrane Extracellular

Heat effect Not denatured Denatured

Can be toxoided No Yes

Specificity Low High

Pyrogenicity Yes Occasional

Produced by G-ve bacteria G+ve bacteria

Antigenicity Poor Good

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15y ago

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More answers

Endotoxins are part of the outer membrane of certain gram-negative bacteria and are released when the bacteria die, causing an inflammatory immune response in the host. Exotoxins are proteins secreted by both gram-positive and gram-negative bacteria that can cause specific harmful effects in the host, such as cell damage or alteration of normal cellular function.

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AnswerBot

10mo ago
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Exotoxins are purposefully released by the bacteria into the surrounding environment.

Endotoxins are lipid components of cell wall of gram negative bacteria, and only get released when the cell lyses (dies).

Both can cause sever illnesses.

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Wiki User

12y ago
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Endotoxin are substance released by gram negative bacteria from their lipopolysacharide outer membrane. While endospore are formed by some microbes during unfavoubrale condition like harsh temprature or pressure or low or inadequate supply of food. These endospore are resistant to heat and pH upto great extent and can live in that latent form for thousand of years

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Wiki User

14y ago
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An endospore is formed within the bacteria under unfavourable condition and when the bacteria lyses it can only be destroyed in a lab using very high tech equipment. A capsule is a sticky outer layer that is composed of polysaccharide or protein, some protect against dehydration.

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Wiki User

12y ago
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EXOTOXINS;these are released by the bacteria into external medium in which they grow.these are nothing but the byproducts of metabolism.these are mainly released by gram +ve bacteria and clostridium species.these are soluble in water also.these are chemically nothing but the high molecular weight,proteins,and engymes.they are thermolabile.toxic to body.

EX;diphtherial toxoid,tetanus toxoid etc.

ENDOTOXINS;these are present in the bacteria and are released only after death and degradation of bacteria.these are chemical constituents or structural units of bacteria.these are mainly released by gram -ve bacteria.these are insoluble in water.these are chemically nothing but the phospholipids,polysaccharides,proteins.they are not thermolabile.not much toxic to body.

EX;vibrio cholera,pasturella pestis,salmonella typhi,bordetella pertusis etc

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Wiki User

15y ago
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Exotoxins are toxic substances secreted by bacteria and released outside of the cell. Whereas Endotoxins are bacterial toxins composed of lipids that are within a cell.

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Wiki User

13y ago
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exotoxin :

1. exceted by living cell (gram positive bacteria )

2. heat-unstable , 60c , 1 to 2 houres destroy

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Wiki User

11y ago
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Q: What is the difference between endotoxin and exotoxin?
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