Tag: vaccines
Questions Related to vaccines
How are microorganisms useful to us?
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The production of chemical fertilizers
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The production of fireworks
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The production of soft drinks
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The production of antibiotics
The antibiotics are the chemical compounds which is produced by one organism which inhibit the growth of the other organism. The antibiotics can be used for the control of the growth of the bacteria or organisms causing infections. The microorganisms like the bacterial and fungal species are used for the production of the antibiotics which can be used for the control of other microorganisms.
Plants have been a source of important compounds for human medicine. All of these compounds have been made from plant parts except
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Morphine
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Aspirin
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Vinblastine, to treat cancer
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Coumadin, an anticoagulant
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Penicillin, an antibiotic
Penicillin antibiotic is derived from the fungi Penicillium whereas the other compounds are derived from plant parts like morphine from opium latex, aspirin from salicylate-rich plants, vinblastine from Vinca rosea and coumadin is another name for warfarin.
Which among the following is not an antibiotic?
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Citric acid
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Streptomycin
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Cephalosporin
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Griseofulvin
- Streptomycin is an antibiotic used in the treatment of bacterial infections like tuberculosis, endocarditis, brucellosis, plague, rat bite fever, etc. It is a broad spectrum antibiotic.
- Cephalosporin is a beta-lactam antibiotic. It is used in the treatment of bacterial infections like respiratory tract infections, skin infections, urinary tract infections.
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Griseofulvin is an antifungal antibiotic. It is used in the treatment of skin infections like ringworm, athlete's foot, infections of the scalp, fingernails, etc.
The chemicals released by bacteria, which kills other bacteria are
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Antibiotics
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Antibodies
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Antigens
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Allergens
Antibiotic is a chemical which is released by a bacteria and inhibits the growth of other bacteria. It acts by either killing bacteria or preventing their reproduction.
An antibiotic, which is active against fungi is
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Neomycin
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Terramycin
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Polyenes
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Streptomycin
Antibiotics are antimicrobial substances produced by microorganisms. They are used in the treatment of bacterial infections. Examples of antibiotics include Neomycin, terramycin, Streptmomycin. Polyenes are antifungal antibiotics produced by bacterium Streptomyces species which are used to treat fungal infections. They act by changing the fungal cell membrane by complexing with sterols.
Identify a fungus with medicinal importance.
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Penicillium
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Cercospora
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Agaricus
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Saccharomyces
Penicillin is a secondary metabolite of certain species of Penicillium and is produced when the growth of the fungus is inhibited by stress. It is not produced during active growth. Production is also limited by feedback in the synthesis pathway of penicillin.
Broad spectrum antibiotics are the ones which attack
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Pathogens as well as hosts
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A wide range of pathogens
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Only a pathogen
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Only host
Mode of action of Novobiocin is
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Induces abnormal protein synthesis
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Inhibits DNA polymerisation
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Interferes with protein synthesis
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Inhibits cell wall synthesis
The molecular structure of penicillin antibiotic is
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Macrocyclic lactone
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Glycoside linkage in amino sugar
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$\beta$-lactam ring
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Polyaena and nonpolyaene
Penicillin is obtained from Penicillium chrysogenum. Penicillin is a secondary metabolite of certain species of Penicillium and is produced when the growth of the fungus is inhibited by stress. Its structure contains β- lactam ring with a molecular structure of 339.4 g/mol. It was discovered by Alexander Fleming.
Which of the following antibiotics kills bacterial cells by inhibiting the polymerisation of peptidoglycans?
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Aminoglycoside
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Fluoroquinolones
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Quinine
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Penicillin
Penicillin is a secondary metabolite of certain species of Penicillium and is produced when the growth of the fungus is inhibited by stress. It is not produced during active growth. Production is also limited by feedback in the synthesis pathway of penicillin. It was discovered by Alexander Fleming.