6.2 Nutrition: Energy and Material Requirement in Living Organisms

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What is the main source of energy and materials for living things?

Food

What is the process by which autotrophs convert substances from the outside into stored forms of energy?

Photosynthesis

Which organisms use simple food material obtained from inorganic sources like carbon dioxide and water?

Green plants

What are enzymes used for in organisms?

To break down complex substances into simpler ones

Which type of organisms directly or indirectly depend on autotrophs for survival?

Animals

What is the role of chlorophyll in photosynthesis?

Convert carbon dioxide and water into carbohydrates

Explore the concept of how living things obtain energy and materials needed for growth, development, and maintenance. Learn about the common requirements in all organisms and the different ways in which these are fulfilled.

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