IAA and Plant Growth Experiment
Interactive Video
•
Biology, Science, Chemistry
•
9th - 10th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary role of indol acetic acid (IAA) in plants?
To enhance leaf color
To prevent seed germination
To promote cell elongation
To inhibit root growth
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Where is IAA primarily produced in plants?
In the flowers
In the meristematic tissue
In the stem
In the leaves
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the concentration of IAA affect root growth?
Low concentrations stimulate root growth
High concentrations stimulate root growth
Low concentrations have no effect
High concentrations inhibit root growth
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are five seeds used per petri dish in the experiment?
To ensure faster growth
To make the experiment more complex
To replicate results for accuracy
To use up all the seeds
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using grid acetate in the experiment?
To provide nutrients
To measure growth
To support the seeds
To absorb excess water
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the control bottle in the experiment?
To contain the highest concentration of IAA
To contain a mixture of all solutions
To be used as a backup
To have no IAA for comparison
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of stacking petri dishes on their sides during incubation?
To save space
To ensure even temperature distribution
To facilitate root and shoot growth direction
To prevent contamination
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