MEDIUM
10th CBSE
IMPORTANT
Earn 100

Why is the folding up of the leaves of a sensitive plant on touching with a finger not a tropism?

Important Questions on Control and Coordination
MEDIUM
10th CBSE
IMPORTANT
Why is the closing of a dandelion flower at dusk (when it gets dark), not a tropism?

MEDIUM
10th CBSE
IMPORTANT
What is meant by ‘tropisms’ (or tropic movements)? Explain with an example.

MEDIUM
10th CBSE
IMPORTANT
What are the different types of tropisms? Define each type of tropism. Write the name of the stimulus in each case.

EASY
10th CBSE
IMPORTANT
How do tropisms differ from nasties (or nastic movements)?

MEDIUM
10th CBSE
IMPORTANT
Define phototropism. Give one example of phototropism.

MEDIUM
10th CBSE
IMPORTANT
How does phototropism occur in a plant stem (or shoot)? Explain with the help of labelled diagrams.

MEDIUM
10th CBSE
IMPORTANT
What is meant by positive phototropism and negative phototropism? Give one example of each type.

EASY
10th CBSE
IMPORTANT
Define geotropism. Give one example of geotropism.
