Chapter 9: Life Processes Animals Notes…

✓ Free notes Class 7 Science 1 study file

About these notes

Class 7 Science Chapter 9 Life Processes Animals (CBSE and Bihar Board) gives clear chapter notes that explain animal nutrition, respiration, circulation and excretion with labelled diagrams and quick revision points. Main sub-topics: types of feeding (herbivore, carnivore, omnivore), human digestion (mouth to small intestine + enzymes), breathing and gaseous exchange (lungs, gills, trachea), blood and heart basics, and kidney/urine formation. Ideal for Class 7 students preparing school exams, chapter tests and board-pattern practice — Merit Spring ROH also offers chapter tests and mock tests to check your preparation.

Key points you will learn

Class 7 Science Chapter 9 Life Processes Animals notes — organised topic-wise for revision and diagram practice
Types of nutrition: autotrophs vs heterotrophs; herbivore, carnivore, omnivore feeding examples
Human digestive system steps: mouth, oesophagus, stomach, small intestine; enzymes: salivary amylase (starch→maltose), pepsin for proteins; bile emulsifies fats
Ruminant digestion: role of rumen and cud in cows and other ruminants
Breathing vs respiration: breathing = inhalation/exhalation; respiration = cellular energy release (aerobic and anaerobic)
Respiratory organs: lungs (alveoli), gills, tracheal system; basic gas exchange and transport by haemoglobin
Excretion and urinary tract: kidneys filter blood, ureter, urinary bladder, urine formation basics
Study tip: learn and draw labelled diagrams, use flow charts for processes and practise MCQ and chapter test questions

What is inside this chapter

📄

Life Processes Animals - Chapter 9 Notes (Class 7 Science)

Class 7 Science Life Processes Animals - Chapter 9 handwritten-style revision notes for CBSE and Bihar Board students.

📥 Open notes

Questions students ask

What topics are in Class 7 Science Chapter 9 Life Processes Animals?

It focuses on nutrition, digestion, breathing and gaseous exchange, blood circulation basics and excretion in animals, plus comparative examples (gills, lungs, ruminants). Use diagrams to connect structures with functions.

How does digestion occur in humans and ruminants?

In humans digestion begins in the mouth (salivary amylase), continues in the stomach (acid + pepsin) and is completed in the small intestine with bile and intestinal enzymes; ruminants use the rumen to ferment and regurgitate cud.

What is the difference between breathing and respiration?

Breathing is the mechanical process of inhaling and exhaling air, while respiration is the biochemical process inside cells that releases energy from food (aerobic uses oxygen; anaerobic does not).

Where can I find Class 7 Science Chapter 9 Life Processes Animals notes and important questions?

Merit Spring ROH hosts chapter notes for Class 7 Life Processes Animals; you can also practise related important questions, MCQ and check understanding with chapter tests and mock tests on the site.

How should I revise to score well in chapter tests and exams?

Focus first on labelled diagrams (digestive, respiratory, heart, urinary tract), memorise key functions and enzymes, make flow charts for each process, and solve MCQ and chapter test questions for quick recall.

More Science chapters

Chapter 1: The Ever Evolving World of Science Chapter 2: Exploring Substances Acidic Basic and Neutral Chapter 3: Electricity Circuits and Their Components Chapter 4: The World of Metals and Non metals Chapter 5: Physical and Chemical Changes Chapter 6: Adolescence A Stage of Growth and Change All chapters →

Class 7 — other subjects

Social Science Mathematics

Merit Spring App install karein

App Theme