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Microbes in Human Welfare · Question 1

NEET (UG) 2026MCQEasy📈 Topic in 25% papers+4−1
1

What is the reason behind production of large holes in 'Swiss Cheese' ?

  1. The production of large amount of CO2 and H2 by Trichoderma polysporum
  2. The production of large amount of CO2 and H2 by lactic acid bacteria called Lactobacillus
  3. The production of large amount of CO2 by Propionibacterium sharmanii
  4. The production of large amount of CO2 by Clostridium butylicum

Answer

(3) The production of large amount of CO2 by Propionibacterium sharmanii

Solution

As per NCERT, the large holes in 'Swiss cheese' are due to the production of a large amount of CO2 by a bacterium named Propionibacterium sharmanii.

( Clostridium butylicum produces butyric acid, Lactobacillus converts milk to curd and Trichoderma polysporum produces cyclosporin A.)

Answer: (3)

NEET (UG) 2026

Keep practising — Microbes in Human Welfare

2

Match List I with List II :

  1. A-II, B-III, C-I, D-IV
  2. A-III, B-II, C-IV, D-I
  3. A-II, B-III, C-IV, D-I
  4. A-IV, B-III, C-II, D-I
NEET (UG) 2026
3

Which of the following is used as a clot buster?

  1. Statins
  2. Streptokinase
  3. Penicillin
  4. Cyclosporin A
RE-NEET (UG) 2026
4

Which of the following is an example of non-distilled alcoholic beverage produced by yeast?

  1. Beer
  2. Rum
  3. Whisky
  4. Brandy
NEET (UG) 2025
5

Which of the following organisms cannot fix nitrogen? Choose the correct answer from the options given below:

  1. B only
  2. E only
  3. A only
  4. D only
NEET (UG) 2025
6

Streptokinase produced by bacterium Streptococcus is used for

  1. Liver disease treatment
  2. Removing clots from blood vessels
  3. Curd production
  4. Ethanol production
NEET (UG) 2025
7

Which of the following microbes is NOT involved in the preparation of household products? 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
NEET (UG) 2025
8

Match List I with List II Choose the correct answer from the options given below:

  1. A-III, B-I, C-II, D-IV
  2. A-II, B-IV, C-III, D-I
  3. A-III, B-I, C-IV, D-II
  4. A-IV, B-I, C-III, D-II
NEET (UG) 2024
9

Match List-I with List-II relating to microbes and their products: Choose the correct answer from the options given below:

  1. A-II, B-III, C-IV, D-I
  2. A-I, B-II, C-III, D-IV
  3. A-I, B-III, C-II, D-IV
  4. A-I, B-IV, C-II, D-III
RE-NEET (UG) 2024
10

Identify the microorganism which is responsible for the production of an immunosuppressive molecule cyclosporin A :

  1. Trichoderma polysporum
  2. Clostridium butylicum
  3. Aspergillus niger
  4. Streptococcus cerevisiae
NEET (UG) 2022
11

Match List-I with List-II Choose the correct answer from the options given below

  1. (a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)
  2. (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
  3. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
  4. (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
NEET (UG) 2021

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