The ICSE Class 10 Biology exam for 2025 is structured to evaluate students’ knowledge of biological concepts and their practical applications. Understanding the exam pattern, marking scheme, and topic-wise weightage is essential for effective preparation. Here’s a detailed breakdown of what to expect.
Exam Overview
- Total Marks: 100 (80 for the written exam, 20 for internal assessment)
- Duration: 2 hours
- Question Format: Divided into Sections A and B
Marking Scheme and Question Paper Format
Section A: Short-Answer Questions (40 Marks)
- Compulsory questions covering the entire syllabus.
- Includes definitions, reasoning, and diagram labelling.
Section B: Long-Answer Questions (40 Marks)
- Students must answer 4 out of 6 questions.
- Focus on detailed explanations, labelled diagrams, and reasoning.
Internal Assessment (20 Marks)
- Based on project work and practical experiments, assessed by the school.
Topic-Wise Weightage
While the ICSE board does not assign specific weightage to chapters, analysis of previous papers suggests the following distribution:
| Topic | Subtopics | Estimated Marks | Remarks |
|---|---|---|---|
| Basic Biology | Cell cycle, cell division, chromosome structure, genetics | 12 | Emphasis on Mendel’s laws, genetics terminology, and cell division processes. |
| Plant Physiology | Absorption, transpiration, photosynthesis, hormones | 16 | Focus on experiments and adaptations. |
| Human Anatomy and Physiology | Circulatory, excretory, nervous, endocrine systems | 28 | Detailed diagrams (e.g., heart, kidney) and processes are crucial. |
| Population | Population explosion, control measures | 6 | Causes, effects, and control methods. |
| Human Evolution | Theories of evolution, human ancestry | 6 | Includes natural selection and human ancestral traits. |
| Pollution | Types, sources, effects, and control measures | 12 | Focus on air, water, and noise pollution, and waste management. |
Key Preparation Tips
- Focus on High-Weightage Topics: Allocate more time to chapters like Human Anatomy and Plant Physiology.
- Practice Diagrams: Be prepared for diagram-based questions, including the heart, nephron, and reflex arc.
- Revise Regularly: Frequent reviews of key concepts and definitions are vital.
- Understand Concepts: Avoid rote learning; focus on understanding processes and reasoning.
- Time Management: Practice solving sample papers within the given duration.
The ICSE Class 10 Biology exam pattern for 2025 balances theoretical knowledge with practical applications, encouraging comprehensive understanding. Students should leverage the topic-wise weightage to streamline their preparation and excel in the exam.
