Tropisms Flashcards by Isobel Gregory

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What is a tropism?

A tropism is a growth movement of part of a plant in response to a directional stimulus. This response can be either positive or negative.

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What is meant by negative gravitropism?

Shoots grow upwards, away from gravity which allows shoots to grow out of the dark soil into the light for photosynthesis

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What is meant by positive phototropism?

Shoots grow up, towards light which allows leaves to absorb maximum light for a faster rate of photosynthesis

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Tropisms Flashcards

(3 cards)