Learning objective

Explain (HT only) that proteins are digested to amino acids and excess amino acids cannot be stored.

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At a glance

5

Flashcards

7

Questions

Topic

Hormonal coordination in humans

Subtopic

Maintaining water and nitrogen balance in the body (biology only)

AQA GCSE BiologyHomeostasis and response

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Short explanation

In the subtopic Maintaining water and nitrogen balance in the body (biology only), this learning objective focuses on explain (HT only) that proteins are digested to amino acids and excess amino acids cannot be stored. Within Hormonal coordination in humans, students should explain this idea in the exact curriculum context rather than as an isolated fact. Approved keywords for this objective include HT only. proteins means large molecules made up of amino acids that are essential for the structure and function of body tissues. Avoid students often think that excess amino acids can be stored in the body like carbohydrates or fats; instead emphasize that excess amino acids are not stored and must be converted into other substances, such as ammonia and urea, for excretion. For exam answers, review the process of protein digestion and the fate of excess amino acids, focusing on why they cannot be stored in the body.

Key concepts

proteinsamino acids

Why it matters

This objective helps connect Maintaining water and nitrogen balance in the body (biology only) to exam-style questions, flashcards, and revision notes for Hormonal coordination in humans.

Common mistakes

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  • Misunderstanding Protein Digestion: Emphasize that excess amino acids are not stored and must be converted into other substances, such as ammonia and urea, for excretion.

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