Life Processes in Animals
CBSE · Class 7 · Science
Summary of Life Processes in Animals for CBSE Class 7 Science. Key concepts, important points, and chapter overview.
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Overview
Life processes are the essential activities that keep living beings alive. In animals, nutrition, circulation, respiration, excretion, and reproduction work together to support survival. The digestive system breaks food into simpler substances, the respiratory system brings in oxygen and removes car
Key Concepts
Life processes are the basic activities
Life processes are the basic activities needed for survival, such as nutrition, circulation, respiration, excretion, and reproduction.
The alimentary canal is a long
The alimentary canal is a long tube that starts at the mouth and ends at the anus. Food passes through the mouth, oesophagus, stomach, small intestine
In the mouth
In the mouth, teeth crush and chew food into smaller pieces. Saliva also moistens food and helps start the breakdown of starch.
The stomach churns food and releases
The stomach churns food and releases digestive juice, acid, and mucus. Digestive juice breaks down proteins, acid helps digestion and kills many harmf
The small intestine is the longest
The small intestine is the longest part of the alimentary canal, about 6 metres long. It receives secretions from its own lining, the liver, and the p
Learning Objectives
- Understand the meaning of life processes in animals
- Describe the main parts of the alimentary canal and their functions
- Explain digestion, absorption, and egestion
- Recognise how some animals digest food differently from humans
- Differentiate between breathing and respiration
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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