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Previous year question hub

Enzymes and General Principles of Metabolism - Life Sciences Previous Year Questions

Practice Enzymes and General Principles of Metabolism - Life Sciences previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

19Papers
19Years
66Questions
1Topics

Enzymes and General Principles of Metabolism 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.

Medium 34 51.5%
Easy 31 47%
Hard 1 1.5%

Question type distribution

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

MCQ 45 68.2%
Numerical Answer Type (NAT) 17 25.8%
MSQ 4 6.1%

Subject weightage

Top subjects by unique question coverage.

Life Sciences
66 Qs

Most asked topics

Top topics across the included previous year papers.

Enzymes and General Principles of Metabolism
66 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Enzyme Catalysis, Kinetics and Regulation
64 Qs
Coenzymes, ATP and Metabolic Regulation
2 Qs

Paper coverage

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

Life Sciences (XL) 2026
5 Qs
Life Sciences (XL) 2025
2 Qs
Life Sciences (XL) 2024
3 Qs
Life Sciences (XL) 2023
3 Qs
Life Sciences (XL) 2022
1 Qs
Life Sciences (XL) 2021
3 Qs
Life Sciences (XL) 2020
3 Qs
Life Sciences (XL) 2019
2 Qs
Life Sciences (XL) 2018
5 Qs
Life Sciences (XL) 2017
4 Qs
Life Sciences (XL) 2016
4 Qs
Life Sciences (XL) 2014
4 Qs
Life Sciences (XL) 2013
5 Qs
Life Sciences (XL) 2012
4 Qs
Life Sciences (XL) 2011
2 Qs
Life Sciences (XL) 2010
3 Qs
Life Sciences (XL) 2009
2 Qs
Life Sciences (XL) 2008
7 Qs
Life Sciences (XL) 2007
4 Qs

Browse by subtopics

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

Enzyme Catalysis, Kinetics and Regulation

Explore previous-paper coverage, trends and focused practice for Enzyme Catalysis, Kinetics and Regulation.

64 questions19 papers19 years

Coenzymes, ATP and Metabolic Regulation

Explore previous-paper coverage, trends and focused practice for Coenzymes, ATP and Metabolic Regulation.

2 questions2 papers2 years

Included previous year papers

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

Paper nameYearPDFAttempt
Life Sciences (XL) 20262026
5 questions in this view		2026
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Life Sciences (XL) 20252025
2 questions in this view		2025
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Life Sciences (XL) 20242024
3 questions in this view		2024
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Life Sciences (XL) 20232023
3 questions in this view		2023
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Life Sciences (XL) 20222022
1 questions in this view		2022
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Life Sciences (XL) 20212021
3 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
3 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
5 questions in this view		2018
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Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20172017
4 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) 20142014
4 questions in this view		2014
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Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20132013
5 questions in this view		2013
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Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20122012
4 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
3 questions in this view		2010
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Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20092009
2 questions in this view		2009
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Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20082008
7 questions in this view		2008
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Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20072007
4 questions in this view		2007
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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 · Enzymes and General Principles of Metabolism · Enzyme Catalysis, Kinetics and Regulation
Life Sciences (XL) 2007
Km values of enzyme X for substrate S1 and S2 are 0.1 mM and 0.01 mM, respectively. This suggest that
(P) enzyme X has more affinity towards S1
(Q) enzyme X has low affinity towards S1
(R) enzyme X has more affinity towards S2
(S) enzyme X has low affinity towards S2
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2
2008 · Life Sciences · Enzymes and General Principles of Metabolism · Enzyme Catalysis, Kinetics and Regulation
Life Sciences (XL) 2008

The catalytic efficiency of an enzyme is represented by

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3
2009 · Life Sciences · Enzymes and General Principles of Metabolism · Enzyme Catalysis, Kinetics and Regulation
Life Sciences (XL) 2009

Generally, the rate-limiting step of major metabolic pathways is a reaction

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4
2010 · Life Sciences · Enzymes and General Principles of Metabolism · Enzyme Catalysis, Kinetics and Regulation
Life Sciences (XL) 2010

Lineweaver-Burk plot is a plot of

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5
2011 · Life Sciences · Enzymes and General Principles of Metabolism · Enzyme Catalysis, Kinetics and Regulation
Life Sciences (XL) 2011
In the following enzyme catalyzed reaction which follows Michaelis-Menten kinetics
\[ E + S \underset{k_{-1}}{\overset{k_1}{\rightleftharpoons}} ES \xrightarrow{k_2} E + P \]
Km is equal to
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6
2012 · Life Sciences · Enzymes and General Principles of Metabolism · Enzyme Catalysis, Kinetics and Regulation
Life Sciences (XL) 2012
Match the enzymes in Group I with their corresponding activity in Group II
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