Plant Hormones (OCR GCSE Biology A (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What are plant hormones needed for?
What are plant hormones needed for?
To coordinate and control growth
What is phototropism?
What is phototropism?
The response to light
What is another name for gravitropism?
What is another name for gravitropism?
Geotropism
Where does auxin move to in a shoot exposed to light from one side?
Where does auxin move to in a shoot exposed to light from one side?
To the shaded side
What does auxin do to cells on the shaded side of a shoot?
What does auxin do to cells on the shaded side of a shoot?
Stimulates them to grow more
Why is positive phototropism beneficial for plants?
Why is positive phototropism beneficial for plants?
More light for faster photosynthesis
What type of gravitropism do most shoots show?
What type of gravitropism do most shoots show?
Negative gravitropism
What type of gravitropism do most roots show?
What type of gravitropism do most roots show?
Positive gravitropism
How do root cells respond to auxin compared to shoot cells?
How do root cells respond to auxin compared to shoot cells?
Roots grow more on side with less auxin
Why is positive gravitropism beneficial for roots?
Why is positive gravitropism beneficial for roots?
More water and nutrients, plus stability
What do gibberellins stimulate?
What do gibberellins stimulate?
Seed germination
What is ethene involved in?
What is ethene involved in?
Cell division and ripening of fruits