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BIOLOGY – CLASS 10 (MATRIC)
Chapter 1 – Life Processes
1. Nutrition
Nutrition is the process by which organisms obtain food for energy, growth, and repair.
Types of Nutrition
a) Autotrophic Nutrition
Organisms prepare their own food.
Example: Green plants
b) Heterotrophic Nutrition
Organisms depend on other organisms for food.
Example: Humans and animals
2. Respiration
Respiration is the process of breaking down food to release energy.
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, Types of Respiration
a) Aerobic Respiration
Occurs in the presence of oxygen
Produces more energy
b) Anaerobic Respiration
Occurs without oxygen
Produces less energy
Equation
Glucose + Oxygen → Carbon Dioxide + Water + Energy
3. Transport
Transport is the movement of substances inside the body.
In Plants
Xylem transports water and minerals
Phloem transports food
In Humans
Blood transports oxygen and nutrients
Heart pumps blood to the body