Biology for Kids


15 August 2018

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Why do roots grow downwards and shoots grow upwards ?

Roots respond to gravity and shoots grow towards sunlight.

Explanation :
Roots – Roots grow down because the root respond to gravity by releasing the chemicals that prevent growth on the lower side,thus turning the root downwards.
Shoots – Shoots grow upwards towards the sunlight.The growing tip of the shoot can detect the direction of the light, and chemicals are released that make it grow more on the lower or darker side, thus turning the shoot upwards