ICSE Class 10 Biology

Previous-year ICSE Class 10 Biology questions with independently written answers, organised by examination year and by chapter.

Previous-year question practice database

Study by chapter Study by year View insights

Start with the latest paper

2026

80 marks · 81 questions

Open

Carries the most marks

The Endocrine System

10% of all marks across 11 papers · 65 questions

Open

Practise and self-mark

135 objective questions

Pick an answer and check it instantly, with the explanation

Open

868 questions · 11 papers · 2016–2026 · 16 chapters · 249 with diagrams

Chapters

Every chapter with its previous-year question count.

View all →

Absorption by Roots – The Processes Involved

37 questions43 marks 11 diagrams

Appeared in 10 of the 11 available papers.

Cell – The Structural and Functional Unit of Life

4 questions4 marks 1 diagrams

Appeared in 3 of the 11 available papers.

Chemical Coordination in Plants

28 questions28 marks 9 diagrams

Appeared in 6 of the 11 available papers.

Genetics – Some Basic Fundamentals

62 questions62 marks 5 diagrams

Appeared in 10 of the 11 available papers.

Human Evolution

19 questions26 marks 5 diagrams

Appeared in 5 of the 11 available papers.

Photosynthesis

66 questions78 marks 34 diagrams

Appeared in 10 of the 11 available papers.

Pollution – A Rising Environmental Problem

68 questions78 marks 18 diagrams

Appeared in 9 of the 11 available papers.

Population – The Increasing Numbers and Rising Problems

20 questions23 marks

Appeared in 9 of the 11 available papers.

Sense Organs

87 questions95 marks 18 diagrams

Appeared in 10 of the 11 available papers.

Structure of Chromosomes, Cell Cycle and Cell Division

70 questions78 marks 23 diagrams

Appeared in 10 of the 11 available papers.

The Circulatory System

87 questions96 marks 19 diagrams

Appeared in 10 of the 11 available papers.

The Endocrine System

65 questions97 marks 19 diagrams

Appeared in 10 of the 11 available papers.

The Excretory System

49 questions62 marks 16 diagrams

Appeared in 10 of the 11 available papers.

The Nervous System

64 questions79 marks 16 diagrams

Appeared in 10 of the 11 available papers.

The Reproductive System

82 questions88 marks 29 diagrams

Appeared in 9 of the 11 available papers.

Transpiration

60 questions65 marks 26 diagrams

Appeared in 10 of the 11 available papers.

Frequently tested chapters

Ranked by how many papers the chapter has appeared in.

Sense Organs

87 questions95 marks 18 diagrams

Appeared in 10 of the 11 available papers.

The Circulatory System

87 questions96 marks 19 diagrams

Appeared in 10 of the 11 available papers.

Structure of Chromosomes, Cell Cycle and Cell Division

70 questions78 marks 23 diagrams

Appeared in 10 of the 11 available papers.

Photosynthesis

66 questions78 marks 34 diagrams

Appeared in 10 of the 11 available papers.

The Endocrine System

65 questions97 marks 19 diagrams

Appeared in 10 of the 11 available papers.

Examination years

Open a year to study the complete paper.

View all →

2026

81 questions · 100 marks

2025

72 questions · 100 marks

2024

76 questions · 100 marks

2023

74 questions · 100 marks

2022

Semester 2

37 questions · 60 marks

2021

Semester 1

40 questions · 40 marks

2020

97 questions · 100 marks

2019

96 questions · 100 marks

2018

97 questions · 100 marks

2017

101 questions · 100 marks

2016

97 questions · 100 marks