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Earn 100

Which of the following statement(s) regarding antibiotics is/are not correct?
(i) Antibiotics are the attenuated microorganisms which in small concentration can kill or retard the growth of other harmful microorganisms.
(ii) Penicillin was the first antibiotic discovered by Alexander Fleming 1928, while working on bacterium Staphylococcus aureus.
(iii) The full potential of penicillin as an effective antibiotic was established by Ernest Chain and Howard Florey.
(iv) Fleming, Chain and Florey were awarded the Nobel Prize in 1945.

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Important Questions on Microbes in Human Welfare

MEDIUM
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IMPORTANT

Which of the following diseases are treated by antibiotics?
(i) Plague
(ii) Diphtheria
(iii) Leprosy
(iv) Whooping cough

EASY
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Streptomycin is obtained from ------------------.

MEDIUM
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Which of the following antibiotics is not correctly matched with the source from which it is obtained?

MEDIUM
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Select the correct option to fill up the blanks.
(i) _____ are used in detergent formulations and are helpful in removing oily stains from the laundry.
(ii) _____ are ripened by growing Penicillium roqueforti on them.
(iii) _____ are produced without distillations whereas, _____ are produced by distillations of the fermented broth.
(iv) _____ antibiotic was used to treat American soldiers wounded in world war II.
(v) _____ is also called as Kusht rog.
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_____ is produced by the bacterium Streptococcus and modified by genetic engineering is used as a clot-buster for removing clots from the blood vessels of patients who have undergone myocardial infarction leading to a heart attack.
EASY
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Enzyme which has the fibrinolytic effect is ________.
HARD
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Identify the blank spaces i, ii, iii and iv in the following table and select the correct answer.

Type of microbe Scientific name Commercial product
Bacterium (i) Streptokinase
(ii) Aspergillus niger Citric acid
Fungus Trichoderma polysporum (iii)
Bacterium (iv) Butyric acid
HARD
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A drug used for patient A is obtained from the organism B. Identify A and B in the above statement and select the correct answer.