ICSE Class 10 Preboard Papers Biology 2: Download PDFs

Download icse class 10 preboard papers biology 2 from the table below. The page hosts 3 Biology pre-board PDFs covering the years 2023, 2025, and 2026. Each paper is an 80-mark, two-hour exam, and the downloads are direct with no signup required.

Download ICSE Class 10 Biology Pre-Board Papers PDF

These are the 3 pre-board papers PDFs hosted on icseboard.org for ICSE Class 10 Biology, organised by subject. Each section below explains what those papers cover before the download table.

This group contains 3 Biology pre-board papers from the years 2023, 2025, and 2026. Each paper is an 80-mark, two-hour exam with a compulsory Section A and a Section B requiring any four questions. The papers cover core Class 10 Biology topics including cell division, genetics, human physiology, and environmental science, with Question 1 always consisting of 15 multiple-choice questions.

What These Biology Pre-Board Papers Cover

The table holds three pre-board papers: 2023, 2025, and 2026. Every paper follows the same structure. Section A is compulsory and carries 40 marks. Section B requires any four questions and carries the remaining 40 marks.

Question 1 is always a 15-mark multiple-choice section. The excerpts show questions on cell division, genetics, and plant physiology. Later questions ask for definitions, labelled diagrams, and short explanations across the Class 10 Biology syllabus.

The papers give you a real sense of how pre-board exams frame topics. You can pair them with the Class 10 resources or the Class 10 books for fuller preparation. For official syllabus updates, check the CISCE website.

How to Use These Papers for Exam Preparation

Using pre-board papers well means simulating the real exam before checking answers. Follow these steps:

1. Set a two-hour timer for each paper. The 2025 and 2026 papers include a 15-minute reading time before writing begins.
2. Attempt Section A first. It is compulsory and covers the entire syllabus through short MCQs and assertion-reason questions.
3. Choose four Section B questions carefully. Pick the topics you know best, since you only need four out of the given options.
4. Self-evaluate using the mark tags. A 15-mark MCQ needs speed, while a 5-mark question needs a labelled diagram and clear steps.

After finishing, review your answers against your textbook. Focus on the questions you left blank or answered incorrectly.

Topics That Appear Across the 2023, 2025, and 2026 Papers

The excerpts show clear patterns in what pre-board exams test. Some topics appear in multiple years, which makes them high-priority for revision.

Genetics appears in all three years. The 2023 paper asks about the 9:3:3:1 dihybrid cross ratio, while the 2025 paper includes an assertion-reason question on monohybrid dominance. This tells you to study Mendel’s laws thoroughly.

Worked Example: Monohybrid Cross Assertion-Reason

The 2025 paper includes an assertion-reason question on monohybrid crosses. Here is how to approach this question type.

Question pattern: Assertion: In a monohybrid cross, the F1 generation shows dominant characters. Reason: Dominance occurs only in the heterozygous state.

Step 1: Check the assertion. In a monohybrid cross between a pure dominant (TT) and a pure recessive (tt) parent, all F1 offspring are Tt. The F1 generation shows the dominant trait. So the assertion is true.

Step 2: Check the reason. Dominance means the dominant allele masks the recessive one. This happens in the heterozygous state (Tt), where only the dominant trait appears. So the reason is also true.

Step 3: Check if the reason explains the assertion. The F1 generation shows dominant characters because the offspring are heterozygous, and dominance occurs in that state. The reason directly explains the assertion.

Answer: Both A and R are true, and R is the correct explanation of A.

Marking Guidance From the Paper Structure

The mark tags in the excerpts tell you how much detail each answer needs.

• [15] marks for Question 1: This is the MCQ section. You get one mark per correct answer. Write only the correct option. Do not copy the question.
• Section A remaining questions: These carry 25 marks total. Answers need brief, precise definitions and one-word or one-sentence responses.
• Section B questions: Each question is worth 10 marks, broken into parts. A 5-mark part needs a labelled diagram. A 3-mark part needs a short explanation with key terms.

Examiners look for correct biological terms in your answers. Writing “stoma” instead of “stroma” for the ground substance of chloroplasts loses marks, as seen in the 2023 MCQ.

Common Mistakes Students Make While Studying

• Confusing stroma with stoma: The 2023 paper tests this directly. Stroma is the ground substance of a chloroplast. Stoma is the pore on a leaf epidermis.
• Skipping assertion-reason practice: The 2025 and 2026 papers include these questions. Students often mark both as true without checking if the reason explains the assertion.
• Ignoring the 15-minute reading time: The 2025 and 2026 papers give 15 minutes to read before writing. Use this time to plan your four Section B questions.
• Writing full sentences for MCQs: The instructions say to write only the answer. Copying the question wastes time and earns no extra marks.

Frequently Asked Questions

How many pre-board Biology papers can I download here?

You can download 3 Biology pre-board papers, covering the years 2023, 2025, and 2026. Each paper carries 80 marks and allows two hours of writing time.

Do these papers include solutions?

No. The page hosts the question papers and guidance on how to approach them. You need to solve the questions yourself and check against your textbook.

What is the exam pattern for these pre-board papers?

Each paper has two sections. Section A is compulsory and carries 40 marks, including a 15-mark MCQ question. Section B requires any four questions and carries 40 marks.

Are these papers aligned with the CISCE syllabus?

Yes. The papers cover Class 10 Biology topics from the CISCE-aligned syllabus, including cell division, genetics, human physiology, and plant biology.

More ICSE study material on this site

• Class 10
• Class 10 Books
• ICSE Books PDF Free
• ICSE Books

Reference: CISCE-aligned ICSE Class 10 textbook material.