NEET Microbes in Human Welfare PYQ practice sheet

7 previous-year NEET Botany questions from Microbes in Human Welfare, newest papers first. Microbes in Human Welfare carries 12 of the Botany questions in NEET 2020 to 2026, so this is a good place to test yourself after revising the chapter. Marking: +4 correct, −1 wrong.

1. 1.

   RE-NEET 2026

   Which of the following is used as a clot buster?

   • (A)
     Cyclosporin A
   • (B)
     Streptokinase
   • (C)
     Penicillin
   • (D)
     Statins
2. 2.

   NEET 2026

   Match List I with List II: List I (Bioactive molecules): A. Streptokinase, B. Statins, C. Lipases, D. Cyclosporin A List II (Importance): I. Immunosuppressive agent, II. Removal of clots from the blood vessels, III. Blood cholesterol-lowering agent, IV. Detergent formulations Choose the correct answer from the options given below:

   • (A)
     A-IV, B-III, C-II, D-I
   • (B)
     A-III, B-II, C-IV, D-I
   • (C)
     A-II, B-III, C-IV, D-I
   • (D)
     A-II, B-III, C-I, D-IV
3. 3.

   NEET 2026

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

   • (A)
     The production of large amount of $\mathrm{CO_2}$ and $\mathrm{H_2}$ by Trichoderma polysporum
   • (B)
     The production of large amount of $\mathrm{CO_2}$ by Clostridium butylicum
   • (C)
     The production of large amount of $\mathrm{CO_2}$ and $\mathrm{H_2}$ by lactic acid bacteria called Lactobacillus
   • (D)
     The production of large amount of $\mathrm{CO_2}$ by Propionibacterium sharmanii
4. 4.

   NEET 2024

   Match List I with List II. List I: A. Clostridium butylicum, B. Saccharomyces cerevisiae, C. Trichoderma polysporum, D. Streptococcus sp. List II: I. Ethanol, II. Streptokinase, III. Butyric acid, IV. Cyclosporin-A Choose the correct answer from the options given below:

   • (A)
     A-III, B-I, C-IV, D-II
   • (B)
     A-III, B-I, C-II, D-IV
   • (C)
     A-IV, B-I, C-III, D-II
   • (D)
     A-II, B-IV, C-III, D-I
5. 5.

   NEET 2021

   Choose the correct answer from the options given below.

   • (A)
     (a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)
   • (B)
     (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
   • (C)
     (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
   • (D)
     (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
6. 6.

   NEET 2020

   Which of the following is put into Anaerobic sludge digester for further sewage treatment?

   • (A)
     Primary sludge
   • (B)
     Floating debris
   • (C)
     Effluents of primary treatment
   • (D)
     Activated sludge
7. 7.

   NEET 2020

   Match the following columns and select the correct option.

   • (A)
     (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
   • (B)
     (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)
   • (C)
     (a)-(i), (b)-(ii), (c)-(iv), (d)-(iii)
   • (D)
     (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)