The sum of all chemical reactions in an organism is called what?

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Study for the Leaving Certificate Biology Test. Prepare with flashcards and multiple-choice questions. Each question includes hints and explanations to enhance learning. Get ready to excel in your exam!

Multiple Choice

The sum of all chemical reactions in an organism is called what?

Explanation:
Metabolism is the full set of chemical reactions occurring in a living organism. It includes both breaking down complex molecules to release energy (catabolic processes) and using that energy to build new molecules (anabolic processes). Respiration is a major energy-producing pathway within metabolism, not the entire network of reactions. Catabolism and anabolism describe only parts of metabolism, not the whole system. So the sum of all chemical reactions in an organism is metabolism.

Metabolism is the full set of chemical reactions occurring in a living organism. It includes both breaking down complex molecules to release energy (catabolic processes) and using that energy to build new molecules (anabolic processes). Respiration is a major energy-producing pathway within metabolism, not the entire network of reactions. Catabolism and anabolism describe only parts of metabolism, not the whole system. So the sum of all chemical reactions in an organism is metabolism.

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