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Study Plan

Digestive System — Study Plan

ICSE · Class 9 · Biology

A step-by-step study plan for Digestive System, ICSE Class 9 Biology: what to learn first, what to practise and when to revise.

45 questions40 flashcards8 formulas & key relations5 concepts

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A comprehensive labeled diagram of the human alimentary canal and its associated digestive glands, showing the path of food.
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One of 14 illustrations for Digestive System in Super Tutor — alongside flashcards, concept maps and practice questions.

Study Plan

1
Day 1–2

Learn the Theory

Read the textbook chapter carefully. Note down definitions, formulas and key ideas. Focus on: 1. Digestive System and Alimentary Canal, 2. Teeth and Dentition, 3. Saliva and Salivary Glands.

2
Day 3

Practise

Solve the textbook exercises and extra practice questions. There are 45 questions available for this chapter.

3
Day 4

Revise & Test

Revise key points without looking at your notes. Take a practice quiz and mark weak areas for another pass.

4
Day 7

Spaced Revision

Come back to Digestive System after a week. Use flashcards for quick recall and try past exam questions on this chapter.

What to Focus On

  • Digestion makes food soluble and absorbable.
  • The alimentary canal is about 9 metres long.
  • The digestive system includes the alimentary canal and digestive glands.
  • Human/mammalian teeth are heterodont.
  • Milk teeth are temporary and total 20.
  • Wisdom tooth is the last molar on each side of each jaw.
  • Dental formula shows teeth in one half of each jaw.
  • Milk teeth = 20.
  • Permanent teeth in adult = 32.

Common Mistakes to Avoid

Digestion means only chewing and swallowing food.

The oesophagus digests food because food passes through it.

Peristalsis is the squeezing or mixing of food in the stomach only.

Memory Tips

Order of the alimentary canal

Types of teeth and their functions

Human dental formula

Structure of a tooth

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Frequently Asked Questions

What are the important topics in Digestive System for ICSE Class 9 Biology?
Key topics in Digestive System include Digestive System and Alimentary Canal, Teeth and Dentition, Saliva and Salivary Glands, Swallowing, Peristalsis, and Oesophagus. Study these first, then practise questions on each for Class 9 exams.
How should I revise Digestive System for Class 9 exams?
Learn the core ideas first, then work through the 45 practice questions on Digestive System. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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