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Learning objective

Describe (HT only) adrenaline as a hormone secreted by the adrenal glands in fear or stress.

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Topic

Hormonal coordination in humans

Subtopic

Feedback systems (HT only)

Aqa Gcse BiologyHomeostasis and response

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Quick explanation

Describe (HT only) adrenaline as a hormone secreted by the adrenal glands in fear or stress

  • This point belongs to Hormonal coordination in humans, especially Feedback systems (HT only).
  • You need to be able to describe (HT only) adrenaline as a hormone secreted by the adrenal glands in fear or stress.
  • The key ideas to know are adrenal glands, HT only, and adrenaline.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

adrenal glandsHT onlyadrenaline

Why it matters

This objective helps connect Feedback systems (HT only) to exam-style questions, flashcards, and revision notes for Hormonal coordination in humans.

Quick student answer

How does (HT only) adrenaline work?

Direct answer

In Biology, this page helps you answer questions about (HT only) adrenaline within Hormonal coordination in humans. Focus on the key process, correct scientific terms, and how the idea links to exam-style questions. Key terms to check are adrenaline and adrenal glands.

Key terms

  • adrenaline: A hormone secreted by the adrenal glands in response to fear or stress, which prepares the body for 'fight or flight' by increasing heart rate and oxygen delivery.
  • adrenal glands: Glands located on top of the kidneys that produce hormones, including adrenaline, which are involved in the body's response to stress.

Common trap

Misunderstanding Adrenaline's Role: Remember that adrenaline is involved in the 'fight or flight' response, acting quickly to prepare the body for immediate action, rather than regulating long-term bodily functions.

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