What is the reason behind production of large holes in 'Swiss Cheese'?
1. The production of large amount of \(CO_2\) by Clostridium butylicum
2. The production of large amount of \(CO_2\) and \(H_2\) by Trichoderma polysporum
3. The production of large amount of \(CO_2\) and \(H_2\) by lactic acid bacteria called Lactobacillus
4. The production of large amount of \(CO_2\) by Propionibacterium sharmanii
Subtopic:  Microbes in Household Products |
 85%
Level 1: 80%+
NEET - 2026
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Which of the following microbes is NOT involved in the preparation of household products?
A. Aspergillus niger
B. Lactobacillus
C. Trichoderma polysporum
D. Saccharomyces cerevisiae
E. Propionibacterium sharmanii
Choose the correct answer from the options given below:
1. C and D only 2. C and E only
3. A and B only 4. A and C only
Subtopic:  Microbes in Household Products |
 66%
Level 2: 60%+
NEET - 2025
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Match the following :

(a)

Lactobacillus

(i)

Cheese

(b)

Saccharomyces cerevisiae

(ii)

Curd

(c)

Aspergillus niger

(iii)

Citric Acid

(d)

Acetobacter aceti

(iv)

Bread

(v)

Acetic acid


Select the correct option:
Options: (a) (b)  (c) (d)
1. (ii)   (i)   (iii) (v)
2. (ii) (iv)  (v)  (iii)
3. (ii) (iv)  (iii) (v)
4. (iii) (iv)  (v)   (i) 

Subtopic:  Microbes in Household Products |
 74%
Level 2: 60%+
NEET - 2019
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Conversion of milk to curd improves its nutritional value by increasing the amount of?
1. Vitamin D 2. Vitamin A
3. Vitamin B12 4. Vitamin E
Subtopic:  Microbes in Household Products |
 96%
Level 1: 80%+
NEET - 2018
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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?
1. Aspergillus niger – citric acid
2. Yeast – statins
3. Acetobacter aceti – acetic acid
4. Clostridium butylicum – lactic acid

Subtopic:  Microbes in Household Products |
 77%
Level 2: 60%+
AIPMT - 2011
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The dough kept overnight in warm weather becomes soft and spongy because of:

1. Fermentation

2. Cohesion

3. Osmosis

4. Absorption of carbon dioxide from the atmosphere

Subtopic:  Microbes in Household Products |
 77%
Level 2: 60%+
AIPMT - 2004
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During the formation of bread it becomes porous due to the release of CO2 by the action of:

1. Yeast 2. Bacteria
3. Virus 4. Protozoans
Subtopic:  Microbes in Household Products |
 89%
Level 1: 80%+
AIPMT - 2002
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