ICSE Class 10 Biology — Guess Paper & Important Questions 2027
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Everything for Biology in one place — guess paper, important questions and chapter-wise important topics for the 2027 exam, from analysis of 4 board + 5 official sample papers (2023–2027).
Guess Paper 2027
A full 36-question paper on the official pattern, built from the most-likely questions.
Open guess paper PDFImportant Questions
123 question patterns that have repeated across past papers.
See repeated questions PDFImportant Topics
Every chapter’s topics ranked by how often and how recently they were asked.
See important topicsTop 5 topics
| # | Topic | Chapter | Importance |
|---|---|---|---|
| 1 | Swachh Bharat Abhiyan objectives | Pollution | ★★★★★ |
| 2 | Balanced equation of photosynthesis | Photosynthesis | ★★★★★ |
| 3 | Mendel's Law of Segregation | Genetics | ★★★★★ |
| 4 | Menarche | The Reproductive System | ★★★★☆ |
| 5 | Structure of the sperm | The Reproductive System | ★★★★☆ |
ICSE Class 10 Biology exam pattern 2027
Key facts
- Maximum marks: 80
- Duration: 2 hours
- Sections: 2 (A, B)
- Exam: 2027 ICSE Class 10 board exam
| Section | What is asked | Marks |
|---|---|---|
| A | Compulsory. Q1 is fifteen multiple-choice questions (1 mark each, including assertion-reason and statement-set variants); the remaining marks are structured short-answer parts - biological/technical terms, fill-in-the-blank, odd-one-out, match-the-column, reasoning and case-based sub-parts. | 40 |
| B | Attempt any four of the six questions; each question is 10 marks made up of case-based reasoning, short-answer, diagram and application sub-parts (1, 2 and 3 mark parts). | 40 |
ICSE Class 10 Biology chapter-wise weightage 2027
| Unit | Chapters | Marks |
|---|---|---|
| Basic Biology | Cell Cycle and Cell Division, Structure of Chromosome, Genetics | 12 |
| Plant Physiology | Absorption by Roots and Ascent of Sap, Transpiration, Photosynthesis, Chemical Coordination in Plants | 16 |
| Human Anatomy and Physiology | Circulatory System, Excretory System, Nervous System and Sense Organs, Endocrine System, The Reproductive System | 34 |
| Population | Population | 4 |
| Human Evolution | Human Evolution | 4 |
| Pollution | Pollution | 10 |
Unit marks as given in the official syllabus.
Frequently asked questions
Is this the real ICSE Class 10 Biology guess paper 2027?
No. It is a practice guess paper built by analysing which questions and topics repeat across 4 board + 5 official sample papers (2023–2027) for ICSE Class 10 Biology. It follows the latest official exam pattern but is not an official or leaked paper.
What is the ICSE Class 10 Biology exam pattern for 2027?
The ICSE Class 10 Biology 2027 paper is 80 marks and 2 hours long, in 2 sections: Section A — Compulsory; Section B — Attempt any four of the six questions; each question is 10 marks made up of case-based reasoning, short-answer, diagram and application sub-parts (1, 2 and 3 mark parts). Highest-weightage units: Human Anatomy and Physiology (34 marks), Plant Physiology (16 marks), Basic Biology (12 marks).
How many questions repeat in ICSE Class 10 Biology?
We found 123 question patterns that appeared in two or more of the analysed papers (4 board + 5 official sample papers). The most-repeated ones are listed on the Important Questions page.
What are the most important topics for ICSE Class 10 Biology 2027?
The top topics by repetition are Swachh Bharat Abhiyan objectives; Balanced equation of photosynthesis; Mendel's Law of Segregation. The full ranked list is on the Important Topics page.
Where can I see the ICSE Class 10 Biology guess paper?
The full 36-question guess paper is on the Guess Paper page — free to view, with each question tagged by chapter and how often it has appeared in past papers.