What is the primary function of auxins in plants?

Plant Hormones Quiz

Quiz
•
Biology
•
12th Grade
•
Hard
SHEELA PRADHAN
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Promoting cell elongation and growth
Inhibiting cell elongation and growth
Regulating photosynthesis
Controlling water uptake
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do auxins promote cell elongation in plants?
By inhibiting cell division
By decreasing the plasticity of the cell wall
By reducing water uptake in the cells
By increasing the plasticity of the cell wall
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Name the plant hormone responsible for phototropism and geotropism.
ethylene
auxin
gibberellin
cytokinin
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain the role of auxins in apical dominance.
Auxins promote the growth of lateral buds
Auxins inhibit the growth of lateral buds
Auxins have no effect on lateral buds
Auxins stimulate the growth of apical buds
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of gibberellins in seed germination?
Cause seed germination by inducing dormancy
Promote seed germination by breaking dormancy and stimulating enzyme production
Have no effect on seed germination
Inhibit seed germination by preventing enzyme production
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do gibberellins promote stem elongation in plants?
By reducing water uptake in the stem tissues
By promoting leaf growth instead of stem growth
By stimulating cell division and elongation in the stem tissues
By inhibiting cell division in the stem tissues
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Name the plant hormone responsible for inducing dormancy in seeds and buds.
ABA
Auxin
Gibberellin
Cytokinin
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