Based on the CISCE ICSE Biology syllabus (Science Paper 3)
ICSE Class 9 Biology: Syllabus, Topics & Sample Practice
Understand the seven official CISCE Biology units, how the 80 + 20 two-hour paper and practical assessment work, and work through a stepped demonstration question — a calm, structured start to the ICSE Biology course.
Key Curriculum Facts
- 80 marks
- Theory Paper
- 2-hour written paper
- 20 marks
- Internal Assessment
- Practical work & file
- Own paper
- Examined As
- Science Paper 3, separate from Physics & Chemistry
How ICSE Class 9 Biology Builds the Foundations
ICSE Biology is a two-year course across Classes 9 and 10, examined as its own Science paper. Class 9 lays the groundwork — the cell and tissues, flowering plants and plant physiology, the diversity of living organisms, the human body, health and the environment.
The CISCE Class 9 syllabus is organised into seven units, moving from the cell as the unit of life through plant life and classification to human anatomy, health and hygiene, and waste management. Much of it is understood best through specimens, diagrams and simple experiments rather than memorising.
This page shows EduMagik's stepped reasoning approach with a worked demonstration question: a clue first, then a full step-by-step solution, so the concept is understood rather than just answered.
The Seven CISCE Biology Units (ICSE Class 9)
The official CISCE Class 9 syllabus is organised into seven units — grouped here by theme
Cells, Tissues & Plant Life
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Ch 1
Basic Biology
The cell as the unit of life and protoplasm; differences between prokaryotic and eukaryotic cells and between plant and animal cells; cell organelles and their functions; and the types of plant and animal tissues with their location and role.
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Ch 2
Flowering Plants
Structure of a bisexual flower and its parts; self and cross-pollination and their agents; fertilisation, double fertilisation and triple fusion; and fruit and seed — their definition and significance.
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Ch 3
Plant Physiology
Structure of dicot and monocot seeds (bean seed and maize grain); types of germination (hypogeal and epigeal) and the conditions needed for germination; and respiration in plants with aerobic and anaerobic gaseous exchange.
Diversity of Living Organisms
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Ch 4
Diversity in Living Organisms
The five-kingdom classification (Monera, Protista, Fungi, Plantae, Animalia) with the main characteristics and examples of each; and the economic importance — useful and harmful roles — of bacteria and fungi.
The Human Body & Health
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Ch 5
Human Anatomy and Physiology
Nutrition — classes of food, a balanced diet and deficiency diseases (Kwashiorkor, Marasmus), teeth and the digestive system; the skeleton, joints and movement; the structure and functions of the skin; and the respiratory system and mechanism of breathing.
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Ch 6
Health and Hygiene
Personal and public hygiene; communicable, non-communicable, endemic, epidemic and pandemic diseases and their modes of transmission; bacterial, viral, protozoan and helminthic diseases; active and passive immunity and aids to health; and the role of the Red Cross and WHO.
Environment
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Ch 7
Waste Generation and Management
Sources of domestic, industrial, agricultural, municipal and e-waste; and methods of safe disposal — segregation, composting, incineration, treatment of effluents and sewage treatment plants.
Kwashiorkor, a deficiency disease seen in young children, is caused mainly by a lack of which nutrient in the diet?
Reasoning Clue & Solution
Think about which nutrient the body needs to build and repair tissues, and which deficiency disease is named for being contrasted with Marasmus.
The EduMagik 3-Step Hint Ladder
Point to the Concept
Names the idea to reach for (e.g. "Which nutrient builds and repairs tissues?") without giving the answer.
Guided Reasoning Prompt
Prompts the key step (e.g. "How does Kwashiorkor differ from Marasmus?").
Complete Worked Solution
Shows the full step-by-step reasoning and explains why the answer is correct.
How to Revise Class 9 Biology
Simple, high-impact ways to build strong foundations
Learn Through Diagrams
Draw and label the bisexual flower, the cell, seeds and body systems yourself — Biology rewards clear, correctly labelled diagrams in the paper.
Take Practical Work Seriously
Internal assessment is 20 marks — careful microscope work, specimen identification and a tidy practical file genuinely lift the overall grade.
Connect Biology to Everyday Life
Link topics to what you see — germinating seeds, a balanced meal, segregating household waste — so foundation concepts stick for Class 10.
Frequently Asked Questions
What are the main units in ICSE Class 9 Biology?
The CISCE Class 9 syllabus has seven units: Basic Biology (cell and tissues); Flowering Plants; Plant Physiology; Diversity in Living Organisms; Human Anatomy and Physiology; Health and Hygiene; and Waste Generation and Management. Always confirm the current syllabus with CISCE or your school.
How is ICSE Class 9 Biology assessed?
By one written paper of two hours carrying 80 marks, plus Internal Assessment of practical work carrying 20 marks — totalling 100. Biology is Science Paper 3 within the Science group.
Is Biology a separate paper in ICSE?
Yes. Within the Science group, Biology is examined as its own paper (Science Paper 3), separate from Physics and Chemistry, each with its own 80 + 20 scheme.
Is ICSE Biology a two-year course?
Yes. Biology runs across Classes 9 and 10 with the board paper taken at the end of Class 10. Class 9 builds the foundations — cells, plant life, classification and the human body — that Class 10 extends into genetics, physiology and the environment.
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