Class 10 | SCIENCE | BIOLOGY | CHAPTER-LIFE PROCESS | BOOK-NCERT | CBSE
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Course
Biology
Institution
This document provides you the well-written notes of Biology (Science), Chapter name -- Life Process for Class 10 by the book -- "NCERT". This notes is really helps you in study for class 10 because in this notes you will get the detail explanation of all the concepts.
Life processes are the essential processes that help living organisms to stay alive and
perform various activities. These processes include nutrition, respiration, transportation,
excretion, and others.
1. Nutrition
1.1 Definition:
Nutrition is the process by which organisms take in food and utilize it to obtain energy for
growth, repair, and maintenance of the body.
1.2 Types of Nutrition:
- Autotrophic Nutrition:
- Organisms (like plants) that prepare their own food using sunlight, water, and carbon
dioxide.
- Process: Photosynthesis.
- Equation: 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
- Chlorophyll in leaves captures light energy.
- Heterotrophic Nutrition:
- Organisms (like animals and fungi) that depend on other organisms for food.
- Types:
- Holozoic: Involves ingestion, digestion, absorption, assimilation, and egestion.
Example: humans.
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