Question 1
Learning objective
Describe gravitropism, or geotropism, as a plant growth response to gravity.
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
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Quick explanation
Describe gravitropism, or geotropism, as a plant growth response to gravity
- This point belongs to Plant hormones (biology only), especially Control and coordination.
- You need to be able to describe gravitropism, or geotropism, as a plant growth response to gravity.
- The key ideas to know are gravity, gravitropism, and geotropism.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
gravitygravitropismgeotropism
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 gravitropism, or geotropism, work?
Direct answer
In Biology, this page helps you answer questions about gravitropism, or geotropism, 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 gravitropism and geotropism.
Key terms
- gravitropism: A growth response in plants where roots grow downward in response to gravity, while shoots grow upward.
- geotropism: The directional growth of a plant in response to gravity, often observed as roots growing downwards and stems growing upwards.
Common trap
Misunderstanding Gravitropism: Clarify that gravitropism specifically refers to a plant's growth response to gravity, while phototropism is the response to light.
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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 phototropism as a plant growth response to light.
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