BIOL - Plants Respond to Changes in Environment
Biology, geotropism, phototropism, auxin - IGCSE | IBDP | DSE | GCE | IAL | AP Biology
You may think that plants just stand where they are, without doing anything.
But actually, plants are actively responding to any changes in light or gravity so that they can grow towards light and water for photosynthesis 🌱
Plant's response to stimuli is called tropism.
For IGCSE Biology, you should understand the response of plants to two stimuli: light and gravity
Before looking at how plants respond to light and gravity, you need to learn about one type of plant hormone: auxin.
Phototropism is the response of plants to light.
Phototropism is the response of plants to gravity.
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