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Learning objective

Define metabolism as the sum of all reactions in a cell or the body.

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Topic

Respiration

Subtopic

Metabolism

Aqa Gcse BiologyBioenergetics

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Quick explanation

Define metabolism as the sum of all reactions in a cell or the body

  • This point belongs to Respiration, especially Metabolism.
  • You need to be able to define metabolism as the sum of all reactions in a cell or the body.
  • The key ideas to know are metabolism.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

metabolism

Why it matters

This objective helps connect Metabolism to exam-style questions, flashcards, and revision notes for Respiration.

Quick student answer

What is metabolism?

Direct answer

In Biology, this page helps you answer questions about metabolism within Respiration. Focus on the key process, correct scientific terms, and how the idea links to exam-style questions. Key terms to check are metabolism and reactions.

Key terms

  • metabolism: In Metabolism, metabolism refers to the sum of all chemical reactions that occur within a cell or the body. This matters in Respiration because it supports the learning objective to define metabolism as the sum of all reactions in a cell or the body. Students should use this term accurately when they explain the biology, identify symptoms, or justify an answer in GCSE Biology questions.
  • reactions: Processes that involve the transformation of substances through chemical changes in cells.

Common trap

Misunderstanding Metabolism: Emphasize that metabolism includes both the breakdown of substances for energy and the synthesis of larger molecules from smaller ones.

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