Question 1
Learning objective
Describe phototropism as a plant growth response to light.
Read the explanation, check the common trap, then practise with flashcards and questions.
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Topic
Plant hormones (biology only)
Subtopic
Control and coordination
Aqa Gcse BiologyHomeostasis and response
Study support
Understand this objective
Quick explanation
Describe phototropism as a plant growth response to light
- This point belongs to Plant hormones (biology only), especially Control and coordination.
- You need to be able to describe phototropism as a plant growth response to light.
- The key ideas to know are phototropism and light.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
phototropismlight
Why it matters
This objective helps connect Control and coordination to exam-style questions, flashcards, and revision notes for Plant hormones (biology only).
Quick student answer
How does phototropism work?
Direct answer
In Biology, this page helps you answer questions about phototropism within Plant hormones (biology only). Focus on the key process, correct scientific terms, and how the idea links to exam-style questions. Key terms to check are phototropism and light.
Key terms
- phototropism: In Control and coordination, phototropism means a growth response in plants where they bend or grow towards light. This matters in Plant hormones (biology only) because it supports the learning objective to describe phototropism as a plant growth response to light. Use phototropism only in this subtopic-relevant sense so the definition stays concise, curriculum-specific, and useful for AQA GCSE Biology revision. Students should use this term accurately when they explain the biology, identify symptoms, or justify an answer in GCSE Biology questions.
- light: A form of electromagnetic radiation that plants detect and respond to for growth and development.
Common trap
Misunderstanding Phototropism: Clarify that phototropism specifically refers to growth in response to light, while gravitropism refers to growth in response to gravity. Use diagrams to illustrate the differences.
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Revision notestopic notes
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Open revision notesRelated learning objectives
- Describe plant hormones as chemicals that coordinate and control plant growth and responses.
Control and coordination
- Explain that plants respond to light and gravity using unequal distributions of plant hormones.
Control and coordination
- Describe gravitropism, or geotropism, as a plant growth response to gravity.
Control and coordination
- Explain how unequal distribution of auxin causes unequal growth in shoots and roots.
Control and coordination
- Explain (HT only) that gibberellins are important in initiating seed germination.
Control and coordination