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Life Processes — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceLife Processes5 Marks
Question
Write the difference between nutrition in plants and animals.
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Answer

Greeb plants are autotrophs, they do prepere their own food material.
The word 'auto' means 'self' and 'trophe' means 'nutrition'. Thus, autotrophic means 'self-nutrition’. Green plants are able to prepare their own food from simple raw materials like carbon dioxide from the air, water from the soil and energy from the sunlight. This mode of nutrition where green plants make food themselves from simple substances is called autotrophic nutrition. Such plants are therefore called autotrophs.
Since animals lack chlorophyll they are incapable of manufacturing their own food. They have to depend directly or indirectly on plants for food. Animals are thus heterotrophic where ‘hetero’ means different. hich means that they cannot make their own food as plants do

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