notes of life processes class 10th
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Answer:
All living things perform certain life processes like growth, excretion, respiration, circulation etc.
The basic functions performed by living organisms for their survival and body maintenance are called life process.
Basic life processes are : Nutrition, Respiration, Transportation, Excretion etc.
Life Processes require energy which is provided by nutrition.
Modes of Nutrition
Autotrophic :-Kind of nutrition in which organisms can synthesize their own food Eg. Green Plants
Heterotrophic:- Kind of nutrition of which organisms do not possess the ability to synthesize their own food. They depend on autotrophs for their food supply directly or indirectly. Eg. Animals, Fungi
Autotrophic Nutrition
Autotrophs : The organisms which can make their own food are called autotrophs (green plants).
Photosynthesis : The process by which green plants make their own food with the help of CO and H O in the presence of chlorophyll and sunlight is also called photosynthesis.
Raw Materials for Photosynthesis :
Site of Photosynthesis : Chloroplast in the leaf. Chloroplast contain chlorophyll. (green pigment).