Auxins (Grade 12 NSC Matric Life Sciences): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
ShowHide
Practise the questions
10 questions from this quiz
What are auxins?
What are auxins?
Chemical messengers called plant hormones
Where are auxins mainly produced in plants?
Where are auxins mainly produced in plants?
Growing tips of stems and roots
Which process describes auxins controlling which branches grow?
Which process describes auxins controlling which branches grow?
Apical dominance
What shape do plants develop due to apical dominance?
What shape do plants develop due to apical dominance?
Tapered, Christmas tree-like shape
What happens when the growing tip of a stem is removed?
What happens when the growing tip of a stem is removed?
Lateral branches grow vigorously
Why do farmers remove stem tips in fruit trees?
Why do farmers remove stem tips in fruit trees?
To increase fruit production
How do auxins respond to unilateral light?
How do auxins respond to unilateral light?
Move to the shaded side of the stem
Why does the shaded side of a stem grow faster during phototropism?
Why does the shaded side of a stem grow faster during phototropism?
More auxins stimulate cell elongation
What happens when light comes from directly overhead?
What happens when light comes from directly overhead?
Auxins are distributed evenly
Which cellular process do auxins stimulate for new growth?
Which cellular process do auxins stimulate for new growth?
Cell division (mitosis)