Plant hormones (Edexcel GCSE Biology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What are tropisms in plants?
What are tropisms in plants?
Responses to grow towards light & water
What is positive tropism?
What is positive tropism?
Plant grows towards the stimulus
How do stems respond to light in phototropism?
How do stems respond to light in phototropism?
Positive phototropism - grow towards light
How do roots respond to light?
How do roots respond to light?
Negative phototropism - grow away from light
Where are auxins produced in plants?
Where are auxins produced in plants?
Tips of stems & roots (apical meristem)
What effect do auxins have on shoots compared to roots?
What effect do auxins have on shoots compared to roots?
Promote growth in shoots, inhibit in roots
Why does a stem bend towards light?
Why does a stem bend towards light?
Shaded side has more auxins & grows longer
What is gravitropism?
What is gravitropism?
A plant's response to gravity
How do roots respond to gravity?
How do roots respond to gravity?
Positive gravitropism - grow downwards
What does rooting powder contain and what does it do?
What does rooting powder contain and what does it do?
Contains auxins; helps cuttings grow roots
What do gibberellins stimulate in plants?
What do gibberellins stimulate in plants?
Seed germination, stem growth & flowering
What is ethene used for commercially?
What is ethene used for commercially?
Ripening fruit during transport to shops