Microbes in Human Welfare
Previous year questions with solutions · 2000 – 2026
78 Questions
33 Papers covered
2.97% Weightage 2026 ▼ 59.9% vs last year
’00
’01
’02
’03
’04
’05
’06
’07
’08
’09
’10
’11
’12
’13
’14
’15
’16
’17
’18
’19
’20
’21
’22
’24
’25
’26
Year-wise statistics questions · papers · average per paper · weightage Year Questions Papers Avg / paper Weightage 2026 3 2 1.5 2.97% ▼ 59.9% vs last year 2025 4 1 4 7.41% ▲ 322.2% vs last year 2024 2 2 1 1.75% ▲ 129.8% vs last year 2022 1 2 0.5 0.76% ▼ 54.2% vs last year 2021 1 1 1 1.67% ▼ 58.3% vs last year 2020 2 1 2 4.00% ▼ 47% vs last year 2019 4 1 4 7.55% ▲ 315.1% vs last year 2018 1 1 1 1.82% ▼ 65.5% vs last year 2017 3 1 3 5.26% ▲ 505.3% vs last year 2016 1 2 0.5 0.87% ▼ 52.6% vs last year 2015 2 2 1 1.83% ▲ 2.8% vs last year 2014 1 1 1 1.79% ▼ 0.9% vs last year 2013 2 2 1 1.80% ▼ 79.4% vs last year 2012 9 2 4.5 8.74% ▼ 30.1% vs last year 2011 12 2 6 12.50% ▲ 125% vs last year 2010 5 2 2.5 5.56% ▼ 22.2% vs last year 2009 4 1 4 7.14% ▲ 31% vs last year 2008 3 1 3 5.45% ▼ 7.3% vs last year 2007 3 1 3 5.88% ▲ 247.1% vs last year 2006 1 1 1 1.69% ▲ 6.8% vs last year 2005 1 1 1 1.59% ▼ 78.2% vs last year 2004 4 1 4 7.27% ▲ 125.5% vs last year 2003 2 1 2 3.23% ▲ 3.2% vs last year 2002 2 1 2 3.12% ▼ 38.5% vs last year 2001 3 1 3 5.08% ▲ 37.3% vs last year 2000 2 1 2 3.70%
All 78 MCQ 71 Matching 7
Topic All topics Microbes as Biocontrol Agents Microbes as Biofertilisers Microbes in Household Products Microbes in Industrial Products (Fermented Beverages, Antibiotics, Enzymes, Bioactive Molecules) Microbes in Production of Biogas Microbes in Sewage Treatment Year All years 2026 2025 2024 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000
⚠ 4 of these questions are out of the current syllabus (marked on the question).
Ques. 1 NEET (UG) 2026
Match List I with List II :
A-II, B-III, C-I, D-IV A-III, B-II, C-IV, D-I A-II, B-III, C-IV, D-I A-IV, B-III, C-II, D-I
Ques. 2 RE-NEET (UG) 2026
Which of the following is used as a clot buster?
Statins Streptokinase Penicillin Cyclosporin A
Ques. 3 NEET (UG) 2025
Which of the following is an example of non-distilled alcoholic beverage produced by yeast?
Beer Rum Whisky Brandy
Ques. 4 NEET (UG) 2025
Streptokinase produced by bacterium Streptococcus is used for
Liver disease treatment Removing clots from blood vessels Curd production Ethanol production
Ques. 5 NEET (UG) 2024
Match List I with List II Choose the correct answer from the options given below:
A-III, B-I, C-II, D-IV A-II, B-IV, C-III, D-I A-III, B-I, C-IV, D-II A-IV, B-I, C-III, D-II
Ques. 6 RE-NEET (UG) 2024
Match List-I with List-II relating to microbes and their products: Choose the correct answer from the options given below:
A-II, B-III, C-IV, D-I A-I, B-II, C-III, D-IV A-I, B-III, C-II, D-IV A-I, B-IV, C-II, D-III
Ques. 7 NEET (UG) 2022
Identify the microorganism which is responsible for the production of an immunosuppressive molecule cyclosporin A :
Trichoderma polysporum Clostridium butylicum Aspergillus niger Streptococcus cerevisiae
Ques. 8 NEET (UG) 2021
Match List-I with List-II Choose the correct answer from the options given below
(a)-(iv), (b)-(ii), (c)-(i), (d)-(iii) (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii) (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv) (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
Ques. 9 NEET (UG) 2020
Match the following columns and select the correct option.
(a)-(iii), (b)-(iv), (c)-(ii), (d)-(i) (a)-(i), (b)-(ii), (c)-(iv), (d)-(iii) (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i) (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)
Ques. 10 NEET (UG) 2019
Match the following organisms with the products they produce : Select the correct option.
(a)-(iii), (b)-(iv), (c)-(v), (d)-(i) (a)-(ii), (b)-(i), (c)-(iii), (d)-(v) (a)-(ii), (b)-(iv), (c)-(v), (d)-(iii) (a)-(ii), (b)-(iv), (c)-(iii), (d)-(v)
Ques. 11 NEET (UG) 2019
Which of the following is a commercial blood cholesterol lowering agent?
Streptokinase Lipases Cyclosporin A Statin
Ques. 12 NEET 2017
Which of the following is correctly matched for the product produced by them ?
Acetobacter aceti : Antibiotics Penicillium notatum : Acetic acid Methanobacterium : Lactic acid Saccharomyces cerevisiae : Ethanol
Ques. 13 NEET 2016 (Phase 1)
Which of the following is wrongly matched in the given table?
Microbe - Streptococcus, Product - Streptokinase, Application - Removal of clot from blood vessel Microbe - Trichoderma polysporum, Product - Cyclosporin A, Application - Immunosuppressive drug Microbe - Monascus purpureus, Product - Statins, Application - Lowering of blood cholesterol Microbe - Clostridium butylicum, Product - Lipase, Application - Removal of oil stains
Ques. 14 AIPMT 2015
Match the following list of microbes and their importance -
(a) - (iii), (b) - (i), (c) - (iv), (d) - (ii) (a) - (iii), (b) - (iv), (c) - (i), (d) - (ii) (a) - (iv), (b) - (ii), (c) - (i), (d) - (iii) (a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)
Ques. 15 NEET 2013
A good producer of citric acid is
Clostridium Saccharomyces Aspergillus Pseudomonas
Ques. 16 AIPMT 2012 (Mains)
Read the following four statements (A-D) : How many of the above statements are wrong ?
Two One Four Three
Ques. 17 AIPMT 2012 (Prelims)
Monascus purpureus is a yeast used commercially in the production of:
Ethanol Streptokinase for removing clots from the blood vessels Citric acid Blood cholesterol lowering statins
Ques. 18 AIPMT 2012 (Prelims)
A patient brought to a hospital with myocardial infarction is normally immediately given
Penicillin Streptokinase Cyclosporin A Statins
Ques. 19 AIPMT 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:
A Organ-transplant, B Trichoderma A AIDS, B Pseudomonas A Swine flu, B Monascus A Heart, B Penicillium
Ques. 20 AIPMT 2011 (Mains)
Which one of the following is a wrong matching of a microbe and its industrial product, while the remaining three are correct?
Acetobacter aceti – acetic acid Clostridium butylicum – lactic acid Aspergillus niger – citric acid Yeast – statins
Ques. 21 AIPMT 2011 (Prelims)
The most common substrate used in distilleries for the production of ethanol is :
Ground gram Molasses Soyabean Corn meal
Ques. 22 AIPMT 2011 (Prelims)
Ethanol is commercially produced through a particular species of :
Clostridium Trichoderma Aspergillus Saccharomyces
Ques. 23 AIPMT 2011 (Prelims)
Continuous addition of sugars in 'fed batch' fermentation is done to :
obtain antibiotics produce methane purify enzymes degrade sewage
Ques. 24 AIPMT 2009
Which one of the following pairs is wrongly matched?
Detergents – lipase Fruit juice – pectinase Alcohol – nitrogenase Textile – amylase
Ques. 25 AIPMT 2008
Modern detergents contain enzyme preparations of
thermoacidophiles thermophiles acidophiles alkaliphiles
Ques. 26 AIPMT 2007
Which one of the following pairs is wrongly matched ?
Methanogens – Gobar gas Yeast – Ethanol Streptomycetes – Antibiotic Coliforms – Vinegar
Ques. 27 AIPMT 2006
Curing of tea leaves is brought about by the activity of
fungi bacteria mycorrhiza viruses
Ques. 28 AIPMT 2005
For retting of jute the fermenting microbe used is
methanophilic bacteria butyric acid bacteria Helicobacter pylori Streptococcus lactis.
Ques. 29 AIPMT 2004
Which one of the following pairs is not correctly matched ?
Spirulina – Single cell protein Streptomyces – Antibiotic Rhizobium – Biofertilizer Serratia – Drug addiction
Ques. 30 AIPMT 2000
Which of the following is used to manufacture ethanol from starch?
Saccharomyces Lactobacillus Azotobacter Penicillium