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

The production of large amount of $\mathrm{CO}_2$ by Propionibacterium shermanii

The production of large amount of $\mathrm{CO}_2$ by Clostridium butyricum

The production of large amount of $\mathrm{CO}_2$ and $\mathrm{H}_2$ by lactic acid bacteria called Lactobacillus

The production of large amount of $\mathrm{CO}_2$ and $\mathrm{H}_2$ by Trichoderma polysporum

Streptokinase produced by bacterium Streptococcus is used for

Removing clots from blood vessels

Microbes In Human Welfare — NEET Previous Year Questions

24 solved PYQs · 2016–2026 · Biology

Solved PYQs: 24
Years covered: 2016–2026
Avg / year: ~2
Subject: Biology

How many NEET questions come from Microbes In Human Welfare?

Microbes In Human Welfare has contributed 24 questions to National Eligibility cum Entrance Test (UG) papers between 2016 and 2026 — an average of about 2 questions a year. That count is measured from EByAi’s bank of 46,150 NEET questions, not estimated from a syllabus. Every one of the 24 questions carries a written, step-by-step solution, and each is tagged to Microbes In Human Welfare within Biology, so you can drill this chapter across every year at once instead of hunting through paper PDFs. Practising a chapter’s full PYQ history is the fastest way to learn the patterns examiners reuse.

Sample Microbes In Human Welfare questions from real NEET papers

These are 5 real questions from the bank — exactly as asked, with the answer one tap away. All 24 Microbes In Human Welfare questions (with full written solutions) are available in practice.

Question 1 · NEET 2026
What is the reason behind production of large holes in 'Swiss Cheese'?
1. (A) $The production of large amount of CO_{2} by Propionibacterium shermanii$
2. (B) $The production of large amount of CO_{2} by Clostridium butyricum$
3. (C) $The production of large amount of CO_{2} and H_{2} by lactic acid bacteria called Lactobacillus$
4. (D) $The production of large amount of CO_{2} and H_{2} by Trichoderma polysporum$
Show answerAnswer
$Answer: (A) The production of large amount of CO_{2} by Propionibacterium shermanii$
Question 2 · NEET 2025
Streptokinase produced by bacterium Streptococcus is used for
1. (A) $Liver disease treatment$
2. (B) $Removing clots from blood vessels$
3. (C) $Curd production$
4. (D) $Ethanol production$
Show answerAnswer
$Answer: (B) Removing clots from blood vessels$
Question 3 · NEET 2025
Which of the following is an example of non-distilled alcoholic beverages produced by yeast?
1. (A) $Beer$
2. (B) $Rum$
3. (C) $Whisky$
4. (D) $Brandy$
Show answerAnswer
$Answer: (A) Beer$
Question 4 · NEET 2025
Which of following organisms cannot fix nitrogen?

A. Azotobacter

B. Oscillatoria

C. Anabaena

D. Volvox

E. Nostoc

Choose the correct answer from the options given below:
1. (A) $B only$
2. (B) $E only$
3. (C) $A only$
4. (D) $D only$
Show answerAnswer
$Answer: (D) D only$
Question 5 · NEET 2025
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. (A) $C and D only$
2. (B) $C and E only$
3. (C) $A and B only$
4. (D) $A and C only$
Show answerAnswer
$Answer: (D) A and C only$

Microbes In Human Welfare questions by year

Year	Questions	Share of chapter questions
2026	2
2025	4
2024	2
2022	2
2021	1
2020	2
2019	6
2018	1
2017	3
2016	1

Practise these 24 questions with solutions

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FAQs

How many NEET questions have been asked from Microbes In Human Welfare?

EByAi's bank holds 24 real NEET questions from Microbes In Human Welfare, asked between 2016 and 2026 — about 2 per year on average. Every count is measured from actual papers, not estimated.

Is Microbes In Human Welfare important for NEET?

24 questions over 10 papers make Microbes In Human Welfare a steady-weightage chapter in NEET Biology. The year-wise table above shows exactly how often it appears.

Can I solve Microbes In Human Welfare PYQs online for free?

Yes. EByAi lets you solve NEET past-year questions in the browser with written solutions — free daily practice, no card needed.

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