Microbes in Human Welfare Test

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Microbes in Human Welfare Test - 7

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following group of diseases are treated using antibiotics?

A
Common cold, malaria, plague

B
Leprosy, common cold, plague

C
Diphtheria, leprosy, common cold

D
Plague, diphtheria, whooping cough

Solution

Antibiotics are strong medicines that treat bacterial infections. Antibiotics won't treat viral infections because they can't kill viruses.

Antibiotics can treat bacterial infections by killing the bacteria that causes them.

Antibiotics have improved our capacity to treat deadly disease like Plague, diphtheria (gal ghotu), whooping cough (kali khansi), leprosy etc.
Question 2
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The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the ones categorized as

A
Heterotrophic bacteria

B
Cynobacteria

C
Archaebacteria

D
Chemosynthetic autotrophs

Solution

Heterotrophic bacteria are prokaryotic unicellular microbes that obtain their food from other organism or live as parasite. These bacteria are helpful to humans in making curd from milk and in production of antibiotics.
Question 3
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Monascus purpureus is a yeast used commercially in the production of

A
Citric acid

B
Streptokinase for removing clots from the blood vessels

C
Ethanol

D
Blood cholesterol lowering statins

Solution

Monascus purpureus has been used with diet, exercise, and medical care to lower cholesterol and triglyceride levels. It may reduce levels of "bad" cholesterol (low-density lipoprotein, or LDL) and triglycerides in the blood, and may also increase levels of "good" cholesterol (high-density lipoprotein, or HDL). Blood cholesterol is responsible for a number of heart disease.
Question 4
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Two microbes found to be very useful in genetic engineering are

A
Vibrio cholerae and a tailed Bacteriophage

B
Crown gall bacterium and Caenorhabditis elegans

C
Diplococcus sp. and Pseudomonas sp.

D
Escherichia coli and Agrobacterium tumefaciens

Solution

Microbes are used in genetic engineering technology to alter the gene for getting desired traits. E.coli and Agrobacterium tumefaciens are most widely used bacteria for genetic engineering.
Question 5
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Which one of the following is a wrong matching of a microbe and its industrial product, while the remaining three are correct?

A
Clostridium butyricum - lactic acid

B
Yeast – statins

C
Aspergillus niger - citric acid

D
Acetobacter aceti - acetic acid

Solution

A number of microbes are used to obtain industrial products like acetic acid, ethanol, lactic acid etc. Clostridium butyricum is used to produce butyric acid.
Question 6
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Which of the following is not an application of fermentation?

A
Vine industry

B
Curing of tea

C
Tanning of leather

D
Manufacture of antibiotics

Solution

A number of products are obtained by fermentation process that includes alcohol, acids, bakery product etc. but antibiotic are not produced by application of fermentation process.
Question 7
1 / -0

Bioactive molecule that is used as an immunosuppressive agent in organ-transplant patient obtained from Trichoderma polysporum is

A
Tetracycline

B
Cyclosporine

C
Homulin

D
Cyclosporin A

Solution

Cyclosporin-A is produced by a fungus called Trichoderma polysporum.Cyclosporin-A is used as immunosuppressive agent during organ transplantation.
Question 8
1 / -0

Enzyme immobilization is

A
Conversion of active enzyme into inactive enzyme

B
Conversion of inactive enzyme into active enzyme

C
Changing pH

D
Providing enzyme with protective covering

Solution

Enzyme immobilization is the process whereby the movement of enzymes cells organelles etc. in space is completely or severely restricted usually resulting in a water soluble enzyme thus providing enzyme with protective covering.
Question 9
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Propionbacterium sharmanjii is used to prepare Swiss cheese is due to

A
Production of acetic acid

B
Production of large amount of H₂ gas

C
Production of lactic acid

D
Production of large amount of CO₂ gas

Solution

Propionbacterium sharmanjii is used to prepare Swiss cheese is due to production of large amount of CO₂ gas. Swiss cheese contains large holes and characteristic flavor.
Question 10
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Assertion: Dough used for making food such as dosa and idli is fermented by bacterial.
Reason: The puffed-up appearance of dough is due to the production of lactic acid.

A
Both assertion and reason are incorrect

B
Both assertion and reason are correct

C
Assertion is incorrect but reason is correct

D
Assertion is correct but reason is incorrect

Solution

Dough used for making food such as dosa and idli is fermented by bacterial.

The puffed-up appearance of dough is due to the production of carbon dioxide gas.

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Microbes in Human Welfare Test - 7

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Microbes in Human Welfare Test - 7

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SHARING IS CARING

Question 1

Common cold, malaria, plague

Leprosy, common cold, plague

Diphtheria, leprosy, common cold

Plague, diphtheria, whooping cough

Solution

Question 2

Heterotrophic bacteria

Cynobacteria

Archaebacteria

Chemosynthetic autotrophs

Solution

Question 3

Citric acid

Streptokinase for removing clots from the blood vessels

Ethanol

Blood cholesterol lowering statins

Solution

Question 4

Vibrio cholerae and a tailed Bacteriophage

Crown gall bacterium and Caenorhabditis elegans

Diplococcus sp. and Pseudomonas sp.

Escherichia coli and Agrobacterium tumefaciens

Solution

Question 5

Clostridium butyricum - lactic acid

Yeast – statins

Aspergillus niger - citric acid

Acetobacter aceti - acetic acid

Solution

Question 6

Vine industry

Curing of tea

Tanning of leather

Manufacture of antibiotics

Solution

Question 7

Tetracycline

Cyclosporine

Homulin

Cyclosporin A

Solution

Question 8

Conversion of active enzyme into inactive enzyme

Conversion of inactive enzyme into active enzyme

Changing pH

Providing enzyme with protective covering

Solution

Question 9

Production of acetic acid

Production of large amount of H2 gas

Production of lactic acid

Production of large amount of CO2 gas

Solution

Question 10

Both assertion and reason are incorrect

Both assertion and reason are correct

Assertion is incorrect but reason is correct

Assertion is correct but reason is incorrect

Solution

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Production of large amount of H₂ gas

Production of large amount of CO₂ gas