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Microbes in Human Welfare

Previous year questions with solutions · 2000 – 2026

78Questions
33Papers covered
2.97%Weightage 2026▼ 59.9% vs last year
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’01
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’26
Year-wise statistics questions · papers · average per paper · weightage
YearQuestionsPapersAvg / paperWeightage
2026321.52.97% ▼ 59.9% vs last year
20254147.41% ▲ 322.2% vs last year
20242211.75% ▲ 129.8% vs last year
2022120.50.76% ▼ 54.2% vs last year
20211111.67% ▼ 58.3% vs last year
20202124.00% ▼ 47% vs last year
20194147.55% ▲ 315.1% vs last year
20181111.82% ▼ 65.5% vs last year
20173135.26% ▲ 505.3% vs last year
2016120.50.87% ▼ 52.6% vs last year
20152211.83% ▲ 2.8% vs last year
20141111.79% ▼ 0.9% vs last year
20132211.80% ▼ 79.4% vs last year
2012924.58.74% ▼ 30.1% vs last year
2011122612.50% ▲ 125% vs last year
2010522.55.56% ▼ 22.2% vs last year
20094147.14% ▲ 31% vs last year
20083135.45% ▼ 7.3% vs last year
20073135.88% ▲ 247.1% vs last year
20061111.69% ▲ 6.8% vs last year
20051111.59% ▼ 78.2% vs last year
20044147.27% ▲ 125.5% vs last year
20032123.23% ▲ 3.2% vs last year
20022123.12% ▼ 38.5% vs last year
20013135.08% ▲ 37.3% vs last year
20002123.70%

⚠ 4 of these questions are out of the current syllabus (marked on the question).

30 questions · newest paper first

Ques. 1NEET (UG) 2026

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
Ques. 2RE-NEET (UG) 2026

Which of the following is used as a clot buster?

  1. Statins
  2. Streptokinase
  3. Penicillin
  4. Cyclosporin A
Ques. 3NEET (UG) 2025

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

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

Streptokinase produced by bacterium Streptococcus is used for

  1. Liver disease treatment
  2. Removing clots from blood vessels
  3. Curd production
  4. Ethanol production
Ques. 5NEET (UG) 2024

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
Ques. 6RE-NEET (UG) 2024

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
Ques. 7NEET (UG) 2022

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
Ques. 8NEET (UG) 2021

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)
Ques. 9NEET (UG) 2020

Match the following columns and select the correct option.

  1. (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
  2. (a)-(i), (b)-(ii), (c)-(iv), (d)-(iii)
  3. (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
  4. (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)
Ques. 10NEET (UG) 2019

Match the following organisms with the products they produce : Select the correct option.

  1. (a)-(iii), (b)-(iv), (c)-(v), (d)-(i)
  2. (a)-(ii), (b)-(i), (c)-(iii), (d)-(v)
  3. (a)-(ii), (b)-(iv), (c)-(v), (d)-(iii)
  4. (a)-(ii), (b)-(iv), (c)-(iii), (d)-(v)
Ques. 11NEET (UG) 2019

Which of the following is a commercial blood cholesterol lowering agent?

  1. Streptokinase
  2. Lipases
  3. Cyclosporin A
  4. Statin
Ques. 12NEET 2017

Which of the following is correctly matched for the product produced by them ?

  1. Acetobacter aceti : Antibiotics
  2. Penicillium notatum : Acetic acid
  3. Methanobacterium : Lactic acid
  4. Saccharomyces cerevisiae : Ethanol
Ques. 13NEET 2016 (Phase 1)

Which of the following is wrongly matched in the given table?

  1. Microbe - Streptococcus, Product - Streptokinase, Application - Removal of clot from blood vessel
  2. Microbe - Trichoderma polysporum, Product - Cyclosporin A, Application - Immunosuppressive drug
  3. Microbe - Monascus purpureus, Product - Statins, Application - Lowering of blood cholesterol
  4. Microbe - Clostridium butylicum, Product - Lipase, Application - Removal of oil stains
Ques. 14AIPMT 2015

Match the following list of microbes and their importance -

  1. (a) - (iii), (b) - (i), (c) - (iv), (d) - (ii)
  2. (a) - (iii), (b) - (iv), (c) - (i), (d) - (ii)
  3. (a) - (iv), (b) - (ii), (c) - (i), (d) - (iii)
  4. (a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)
Ques. 15NEET 2013

A good producer of citric acid is

  1. Clostridium
  2. Saccharomyces
  3. Aspergillus
  4. Pseudomonas
Ques. 16AIPMT 2012 (Mains)

Read the following four statements (A-D) : How many of the above statements are wrong ?

  1. Two
  2. One
  3. Four
  4. Three
Ques. 17AIPMT 2012 (Prelims)

Monascus purpureus is a yeast used commercially in the production of:

  1. Ethanol
  2. Streptokinase for removing clots from the blood vessels
  3. Citric acid
  4. Blood cholesterol lowering statins
Ques. 18AIPMT 2012 (Prelims)

A patient brought to a hospital with myocardial infarction is normally immediately given

  1. Penicillin
  2. Streptokinase
  3. Cyclosporin A
  4. Statins
Ques. 19AIPMT 2011 (Mains)

Read the following statement having two blanks (A and B): “A drug used for (A) patients is obtained from a species of the organism (B) .” The one correct option for the two blanks is:

  1. A Organ-transplant, B Trichoderma
  2. A AIDS, B Pseudomonas
  3. A Swine flu, B Monascus
  4. A Heart, B Penicillium
Ques. 20AIPMT 2011 (Mains)

Which one of the following is a wrong matching of a microbe and its industrial product, while the remaining three are correct?

  1. Acetobacter aceti – acetic acid
  2. Clostridium butylicum – lactic acid
  3. Aspergillus niger – citric acid
  4. Yeast – statins
Ques. 21AIPMT 2011 (Prelims)

The most common substrate used in distilleries for the production of ethanol is :

  1. Ground gram
  2. Molasses
  3. Soyabean
  4. Corn meal
Ques. 22AIPMT 2011 (Prelims)

Ethanol is commercially produced through a particular species of :

  1. Clostridium
  2. Trichoderma
  3. Aspergillus
  4. Saccharomyces
Ques. 23AIPMT 2011 (Prelims)

Continuous addition of sugars in 'fed batch' fermentation is done to :

  1. obtain antibiotics
  2. produce methane
  3. purify enzymes
  4. degrade sewage
Ques. 24AIPMT 2009

Which one of the following pairs is wrongly matched?

  1. Detergents – lipase
  2. Fruit juice – pectinase
  3. Alcohol – nitrogenase
  4. Textile – amylase
Ques. 25AIPMT 2008

Modern detergents contain enzyme preparations of

  1. thermoacidophiles
  2. thermophiles
  3. acidophiles
  4. alkaliphiles
Ques. 26AIPMT 2007

Which one of the following pairs is wrongly matched ?

  1. Methanogens – Gobar gas
  2. Yeast – Ethanol
  3. Streptomycetes – Antibiotic
  4. Coliforms – Vinegar
Ques. 27AIPMT 2006

Curing of tea leaves is brought about by the activity of

  1. fungi
  2. bacteria
  3. mycorrhiza
  4. viruses
Ques. 28AIPMT 2005

For retting of jute the fermenting microbe used is

  1. methanophilic bacteria
  2. butyric acid bacteria
  3. Helicobacter pylori
  4. Streptococcus lactis.
Ques. 29AIPMT 2004

Which one of the following pairs is not correctly matched ?

  1. Spirulina – Single cell protein
  2. Streptomyces – Antibiotic
  3. Rhizobium – Biofertilizer
  4. Serratia – Drug addiction
Ques. 30AIPMT 2000

Which of the following is used to manufacture ethanol from starch?

  1. Saccharomyces
  2. Lactobacillus
  3. Azotobacter
  4. Penicillium