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Previous year question hub

Microbial Growth - Life Sciences Previous Year Questions

Practice Microbial Growth - Life Sciences previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

19Papers
19Years
68Questions
1Topics

Microbial Growth question pattern

Every graph below is calculated only from this selection.

Questions by year

Compare question counts across years.

Difficulty distribution

How the classified questions are distributed by difficulty.

Easy 39 57.4%
Medium 27 39.7%
Hard 2 2.9%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

MCQ 35 51.5%
Numerical Answer Type (NAT) 32 47.1%
MSQ 1 1.5%

Subject weightage

Top subjects by unique question coverage.

Life Sciences
68 Qs

Most asked topics

Top topics across the included previous year papers.

Microbial Growth
68 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Growth Kinetics and Culture Systems
60 Qs
Environmental Responses, Quorum Sensing and Biofilms
8 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

Life Sciences (XL) 2026
2 Qs
Life Sciences (XL) 2025
4 Qs
Life Sciences (XL) 2024
1 Qs
Life Sciences (XL) 2023
4 Qs
Life Sciences (XL) 2021
4 Qs
Life Sciences (XL) 2020
6 Qs
Life Sciences (XL) 2019
2 Qs
Life Sciences (XL) 2018
3 Qs
Life Sciences (XL) 2017
5 Qs
Life Sciences (XL) 2016
4 Qs
Life Sciences (XL) 2015
4 Qs
Life Sciences (XL) 2014
6 Qs
Life Sciences (XL) 2013
2 Qs
Life Sciences (XL) 2012
2 Qs
Life Sciences (XL) 2011
2 Qs
Life Sciences (XL) 2010
1 Qs
Life Sciences (XL) 2009
5 Qs
Life Sciences (XL) 2008
5 Qs
Life Sciences (XL) 2007
6 Qs

Browse by subtopics

Open a focused page built from the same verified paper data.

Growth Kinetics and Culture Systems

Explore previous-paper coverage, trends and focused practice for Growth Kinetics and Culture Systems.

60 questions19 papers19 years

Environmental Responses, Quorum Sensing and Biofilms

Explore previous-paper coverage, trends and focused practice for Environmental Responses, Quorum Sensing and Biofilms.

8 questions7 papers7 years

Included previous year papers

Newest papers appear first. Search these papers or sort by year and name.

Paper nameYearPDFAttempt
Life Sciences (XL) 20262026
2 questions in this view		2026
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Life Sciences (XL) 20252025
4 questions in this view		2025
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Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Life Sciences (XL) 20242024
1 questions in this view		2024
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Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Life Sciences (XL) 20232023
4 questions in this view		2023
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Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Life Sciences (XL) 20212021
4 questions in this view		2021
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Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Life Sciences (XL) 20202020
6 questions in this view		2020
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Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20192019
2 questions in this view		2019
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Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20182018
3 questions in this view		2018
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Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20172017
5 questions in this view		2017
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Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20162016
4 questions in this view		2016
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Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20152015
4 questions in this view		2015
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Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20142014
6 questions in this view		2014
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Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20132013
2 questions in this view		2013
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Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20122012
2 questions in this view		2012
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Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20112011
2 questions in this view		2011
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Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20102010
1 questions in this view		2010
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Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20092009
5 questions in this view		2009
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Official documents
Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20082008
5 questions in this view		2008
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Official documents
Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20072007
6 questions in this view		2007
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Official documents
Official question paperOriginal authority-issued PDF Official Download

Sample previous year questions

A varied preview from the papers represented in this selection, with every available option.

1
2007 · Life Sciences · Microbial Growth · Growth Kinetics and Culture Systems
Life Sciences (XL) 2007
The specific growth rate (μ) of a microorganism in death phase is
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2
2008 · Life Sciences · Microbial Growth · Growth Kinetics and Culture Systems
Life Sciences (XL) 2008
Diauxic pattern of biomass growth is associated with
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3
2009 · Life Sciences · Microbial Growth · Growth Kinetics and Culture Systems
Life Sciences (XL) 2009

A culture vessel in which physical, physicochemical and physiological conditions, as well as cell concentration, are kept constant is known as

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4
2010 · Life Sciences · Microbial Growth · Growth Kinetics and Culture Systems
Life Sciences (XL) 2010
A growing bacterial culture with a doubling time of 20 min reaches cell density of 2 × 10⁸ cells/ ml in 3 hours. How much time would it take to reach the cell density of 1 × 10⁹ cells /ml?
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5
2011 · Life Sciences · Microbial Growth · Environmental Responses, Quorum Sensing and Biofilms
Life Sciences (XL) 2011
Which of the following conditions for the heat resistance of microorganisms is CORRECT?
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6
2012 · Life Sciences · Microbial Growth · Growth Kinetics and Culture Systems
Life Sciences (XL) 2012
A rich medium is inoculated with a bacterium that divides every 30 minutes. The number of bacteria at the end of 50 hours is
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