Define tropisms. Mention 5 types of tropism. [3 MARKS]

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Definition: 1 Mark
Types point: 2 Marks

1. A growth movement of a plant in response to an external stimulus in which the direction of stimulus determines the direction of response is called tropism.
2. Five types of tropisms are
Light - phototropism
Gravity - geotropism
Chemical - chemotropism
Water - hydrotropism
Touch - thigmotropism

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Define tropisms. Mention 5 types of tropism. [3 MARKS]

(a) What is meant by 'tropisms' (or tropic movements )? Explain with an example.

(b) What are the different types of tropisms? Define each type of tropism. Write the name of the stimulus in each case.

Examples of different types of tropisms

Name the two main types of tropism.

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