IMMUNOLOGY

OVERVIEW OF THE IMMUNE SYSTEM

A HISTORICAL PERSPECTIVE OF IMMUNOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Chemicals that are produced naturally by bacteria and fungi to act against other microorganisms
A
Hydrogel
B
Synthetic Drugs
C
Antibiotics
D
Chemotherapy
Explanation: 

Detailed explanation-1: -Antibiotics are chemicals that kill or inhibit the growth of bacteria and are used to treat bacterial infections. They are produced in nature by soil bacteria and fungi.

Detailed explanation-2: -Antibiotics are medicines produced by fungi and bacteria to ward off other bacteria in the wild. For example, penicillin is produced from the fungus called Penicillium, and streptomycin is obtained from a bacterium called Streptomyces griseus.

Detailed explanation-3: -Antibiotics are compounds produced by bacteria and fungi which are capable of killing, or inhibiting, competing microbial species.

Detailed explanation-4: -The active compound, produced by Penicillium notatum, was named penicillin. By using the same strategy, other antibiotics such as streptomycin and chloramphenicol were later isolated from different bacterial and fungal fermentations.

Detailed explanation-5: -Fungi naturally produce antibiotics to kill or inhibit the growth of bacteria, limiting their competition in the natural environment. Important antibiotics, such as penicillin and the cephalosporins, can be isolated from fungi.

Detailed explanation-6: -Chloroxylenol (4-chloro-3, 5-dimethylphenol) is a broad spectrum antimicrobial chemical compound used to control bacteria, algae, fungi and virus and is often used in antimicrobial soaps and antiseptics. Phenol and phenolics alter membrane permeability and denature proteins.

Detailed explanation-7: -Other bacteria produce compounds called antimicrobials to kill or slow down the growth of their neighbors. Antimicrobials can be non-specific or specific.

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