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Antibiotics inhibit the growth of or des...

Antibiotics inhibit the growth of or destroy

A

Bacteria and fungi

B

Bacteria and viruses

C

Bacteria , fungi and viruses

D

Bacteria , algae and viruses

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The correct Answer is:
A
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Assertion : Pencillin has a narrow spectrum. Reason : Antibiotics inhibit the growth or destroy micro-organisms.

Assertion (A): Antibiotics inhibit the growth of disease-causing bacteria. Reason (R): Antibiotics are obtained from different moulds.

Auxin inhibits the growth of

Passage 2 Antibiotics are the chemical substances which are produced by microorganisms like bacteria, fungi and moulds. Antibiotics can inhibit the growth or even destroy other microorganisms. Now-a-days, synthetic antibiotics are also available. The first successful antibiotic produced was penicillin. The antibiotics may be either bacteriocidal (kills the organism in the body) or bacteriostatic (inhibits the growth of organism). Ampicillin and amoxycillin are modified antibiotics. Broad spectrum antibiotics are effective against several types of harmful microorganisms. 2. Which of the following is/are not an antibiotic ?

Passage 2 Antibiotics are the chemical substances which are produced by microorganisms like bacteria, fungi and moulds. Antibiotics can inhibit the growth or even destroy other microorganisms. Now-a-days, synthetic antibiotics are also available. The first successful antibiotic produced was penicillin. The antibiotics may be either bacteriocidal (kills the organism in the body) or bacteriostatic (inhibits the growth of organism). Ampicillin and amoxycillin are modified antibiotics. Broad spectrum antibiotics are effective against several types of harmful microorganisms. 3. Which among the following antibiotics is bacteriostatic ?

Passage 2 Antibiotics are the chemical substances which are produced by microorganisms like bacteria, fungi and moulds. Antibiotics can inhibit the growth or even destroy other microorganisms. Now-a-days, synthetic antibiotics are also available. The first successful antibiotic produced was penicillin. The antibiotics may be either bacteriocidal (kills the organism in the body) or bacteriostatic (inhibits the growth of organism). Ampicillin and amoxycillin are modified antibiotics. Broad spectrum antibiotics are effective against several types of harmful microorganisms. 4. Which of the following antibiotics is/are the modification of penicillins ?

Passage 2 Antibiotics are the chemical substances which are produced by microorganisms like bacteria, fungi and moulds. Antibiotics can inhibit the growth or even destroy other microorganisms. Now-a-days, synthetic antibiotics are also available. The first successful antibiotic produced was penicillin. The antibiotics may be either bacteriocidal (kills the organism in the body) or bacteriostatic (inhibits the growth of organism). Ampicillin and amoxycillin are modified antibiotics. Broad spectrum antibiotics are effective against several types of harmful microorganisms. Answer the following questions : 1.Chloramphenicol is :

A substance produced wholly or partly by chemical synthesis, which in low concentrations inhibits the growth or destroys micro organisms by intervening in their metabolic processes is

GRB PUBLICATION-MICROBES IN HUMAN WELFARE-Assertion-Reason Type Questions
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  4. (A) : Cholera is mainly a water-borne diease (R): The key treatment ...

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  5. (A): Anthrax is a common disease of cattle, sheep and goats. (R) : H...

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  6. (A) : Bubonic plague is basically a blood disease. (R): The bacteria...

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  7. (A): Syphilis is a common veneral disease. (R) : Infection may be a...

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  9. (A) : Trachoma is reported to the leading cause of blindness. (R) : ...

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  10. (A) : Measles is a common chilhood disease caused by a DNA virus. (R...

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  11. (A) : Yellow fever is haemorrhagic viral disease. (R): Tiger mosquit...

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  12. (A) : HIV is a retrovirus. (R) : It can synthesis DNA and RNA.

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  13. (A) : Goat is a disease of joints. (R): It is associated with inborn...

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  14. (A): Cancer incidence increases with age. (R) : Oncogenes are epista...

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  15. (A) : Cancer cells divide giving rise to masses of cells called neopla...

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  16. (A) : Breast cancer is the most common disease in women. (R) : It is...

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  17. (A) : Chickens posses innate immunity to anthrax. (R) : Their high b...

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  18. (A) : Plama cells of out immune system are immoral. (R): These cells...

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  19. (A) : Antibodies are chemically protein molecules. (R): They are pro...

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  20. (A):IgG is the most important long-acting antibody. (R) : It plays a...

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  21. (A) : IgA is known as the secretory antibody. (R) : It is found in t...

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