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Definitions from WordNet

Definitions from the Web

Tropism

Definition:

Tropism refers to the biological phenomenon where an organism responds to external stimuli by moving or growing in a particular direction.

Senses:

1. Botany: The growth or movement of a plant or part of a plant in response to an external stimulus, such as towards or away from light (phototropism) or towards or away from gravity (gravitropism).
2. Biology: The response of an organism, particularly an invertebrate, to a stimulus by growth or movement, often involving turning or bending.

Examples:

Sense 1: Botany

Example 1: The sunflower's stem exhibits positive phototropism as it grows towards the sunlight, ensuring maximum exposure to light.

Example 2: A vine displaying negative gravitropism can be seen growing upwards along the walls of the building.

Example 3: The leaves of the sensitive plant fold inward when touched due to thigmotropism, a type of tropism in response to touch.

Sense 2: Biology

Example 1: The fish's tail fin experiences a positive geotropism, helping it swim downwards in response to gravity.

Example 2: The Venus flytrap, a carnivorous plant, exhibits rapid movement as it undergoes thigmotropism to close its leaves around prey.

Example 3: The moth's positive phototropism leads it towards the bright porch light during the night.

Related Products:

To explore more about tropism and its applications, you may consider the following products:

• Books on Tropism - Biology
• Books on Tropism - Plant Biology
• Books on Tropism - Botany