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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

Year-wise coverage for Microbial Growth. Each bar uses a separate theme-derived color.

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. Sort by year, question coverage or name.

PaperYear / sessionQuestions in this viewOpen
Life Sciences (XL) 202620262View paper
Life Sciences (XL) 202520254View paper
Life Sciences (XL) 202420241View paper
Life Sciences (XL) 202320234View paper
Life Sciences (XL) 202120214View paper
Life Sciences (XL) 202020206View paper
Life Sciences (XL) 201920192View paper
Life Sciences (XL) 201820183View paper
Life Sciences (XL) 201720175View paper
Life Sciences (XL) 201620164View paper
Life Sciences (XL) 201520154View paper
Life Sciences (XL) 201420146View paper
Life Sciences (XL) 201320132View paper
Life Sciences (XL) 201220122View paper
Life Sciences (XL) 201120112View paper
Life Sciences (XL) 201020101View paper
Life Sciences (XL) 200920095View paper
Life Sciences (XL) 200820085View paper
Life Sciences (XL) 200720076View paper

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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