Differentiate between
Phototropism and Geotropism.

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Solution

Phototropism is a type of movement seen in plants in response to light.
Geotropism is a type of movement seen in plants in response to gravity.
Characteristics
Phototropism
Geotropism
Meaning Photo- light, tropism- movement. Geo- earth, tropism- movement.
External stimulus Light Gravity
Types
Positive phototropism: Movement towards the light.
Negative phototropism: Movement away from the light.
Positive geotropism: Movement in the direction of gravity.
Negative geotropism: Movement in the direction opposite to gravity.
Example
Positive phototropism is seen in the shoots of the plant.
Negative phototropism is seen in the roots of the plant.
Positive geotropism is seen in the roots of the plant.
Negative geotropism is seen in the shoots of the plant.

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Similar questions

Stems are :

(a) positively geotropic and negatively phototropic

(b) positively geotropic and positively phototropic

(d) negatively phototropicand positively geotropic

(a)Define geotropism. Give one example of geotropism.

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Characteristics	Phototropism	Geotropism
Meaning	Photo- light, tropism- movement.	Geo- earth, tropism- movement.
External stimulus	Light	Gravity
Types	Positive phototropism: Movement towards the light. Negative phototropism: Movement away from the light.	Positive geotropism: Movement in the direction of gravity. Negative geotropism: Movement in the direction opposite to gravity.
Example	Positive phototropism is seen in the shoots of the plant. Negative phototropism is seen in the roots of the plant.	Positive geotropism is seen in the roots of the plant. Negative geotropism is seen in the shoots of the plant.