ANATOMY

GENERAL ANATOMY

IMMUNE SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Bacteria harm cells by
A
destroying the cell and using it to make more bacteria.
B
producing toxins which interfere with how the cell normally works.
Explanation: 

Detailed explanation-1: -Toxins may damage the eukaryotic cell membrane by combining with some structural component, or otherwise alter its function. Many toxins combine with specific receptors on the surface membrane, frequently glycoproteins or gangliosides, and penetrate the cell to reach their intracellular target.

Detailed explanation-2: -Many bacteria produce toxins, and in some cases, more than one toxin is produced by a given organism. Staphylococcus aureus strains, for example, are capable of secreting hemolysins, leukotoxins, exfoliative toxins, enterotoxins, and toxic shock syndrome toxin 1 (TSST-1).

Detailed explanation-3: -Many give off chemicals called toxins, which can damage tissue and make you sick. Examples of bacteria that cause infections include Streptococcus, Staphylococcus, and E. coli.

Detailed explanation-4: -Injury may be due to local or systemic release of microbial products including endotoxin (LPS), exotoxins, or superantigens. Pathogens can induce immune responses that cause tissue damage.

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