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Life Processes in Animals

CBSE · Class 7 · Science

Complete topic list for Life Processes in Animals in CBSE Class 7 Science. Key concepts, sub-topics, and what to focus on for board exams.

39 questions80 flashcards5 concepts

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4 Topics · CBSE Class 7 Science

Topics in Life Processes in Animals

1

1. Life Processes and the Alimentary Canal

  • Life processes are essential for survival.
  • The alimentary canal starts in the mouth and ends at the anus.
  • Digestion begins in the mouth, but food is only partially digested there.
2

2. Digestion in the Mouth, Stomach, and Small Intestine

  • Teeth break food into smaller pieces by crushing and chewing.
  • Saliva contains a digestive juice that helps break down starch into sugar.
  • Chewed starchy food can taste sweet because starch starts changing into sugar in the mouth.
3

3. Large Intestine, Stool, and Egestion

  • The large intestine is about 1.5 metres long.
  • It is shorter but wider than the small intestine.
  • The large intestine absorbs water and some salts from undigested food.
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4. Special Digestion in Animals

  • Grass-eating animals such as cows and buffaloes are called ruminants.
  • Ruminants partially chew grass, swallow it, partially digest it in the stomach, and then bring it back to the mouth for rumination.
  • A cow spends about 8 hours a day just chewing food.

Key Concepts

Central concept: Life processes in animals and how digestion and respiration help animals survive

Life processesDigestionHuman digestive systemAssociated digestive organsSpecial feeding adaptationsRespirationHuman respiratory systemGas exchange

Frequently Asked Questions

What are the important topics in Life Processes in Animals for CBSE Class 7 Science?
Life Processes in Animals covers several key topics that are frequently asked in CBSE Class 7 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Life Processes in Animals — CBSE Class 7 Science?
Understand the core concepts first, then work through the 39 practice questions available for this chapter. Revise formulas and 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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