The large vessels for growing microbes on an industrial scale are called:

1. Petri dish 2. Digestors
3. Biogas vessel 4. Fermentors

Subtopic:  Chemistry of Fermented Beverages |
 87%
From NCERT
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Which of the following organisms is used in the production of beverages?

1. Penicillium notatum

2. Saccharomyces cerevisiae

3. Aspergillus niger

4. Clostridium butylicum

Subtopic:  Chemistry of Fermented Beverages |
 95%
From NCERT
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The gas responsible for puffing-up appearance of dough comes from:

(1) Aerobic respiration

(2) Fermentation

(3) Photosynthesis

(4) Photorespiration

Subtopic:  Microbes in Household Products |
 89%
From NCERT
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Which of the following antibiotics was discovered first?
1. Streptomycin
2. Neomycin
3. Erythromycin
4. Penicillin

Subtopic:  Industrial Products, Beverages & Antibiotics |
 96%
From NCERT
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Acetic acid is produced by a:

(1) Fungus

(2) Bacterium

(3) Yeast

(4) Virus

Subtopic:  Chemicals, Enzymes & Other Bioactive Molecules |
 75%
From NCERT
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Citric acid is produced by:

(1) Acetobacter aceti (a bacterium)

(2) Yeast (a fungus)

(3) Aspergillus niger (a fungus)

(4) Streptococcus (a bacterium)

Subtopic:  Chemicals, Enzymes & Other Bioactive Molecules |
 88%
From NCERT
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Which of the following bacteria has a role in removing clots from the blood vessels?

1. Bacillus thuringiensis

2. Clostridium butylicum

3. Streptococcus

4. Lactobacillus

Subtopic:  Chemicals, Enzymes & Other Bioactive Molecules |
 92%
From NCERT
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Statins used for lowering blood-cholesterol level are extracted from:

(1) Algae

(2) Bacteria

(3) Virus

(4) Yeast

Subtopic:  Chemicals, Enzymes & Other Bioactive Molecules |
 75%
From NCERT
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The bioactive molecule cyclosporin A is used in:

1. Whooping cough

2. Diphtheria

3. Leprosy

4. Organ-transplant patients

Subtopic:  Chemicals, Enzymes & Other Bioactive Molecules |
 96%
From NCERT
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Cyclosporin A is produced from:

(1) Trichoderma polysporum (a fungus)

(2) Bacillus (a bacterium)

(3) Aspergillus (a fungus)

(4) All of these

Subtopic:  Chemicals, Enzymes & Other Bioactive Molecules |
 95%
From NCERT
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