Many plants move their leaves/flowers so that they follow the sun across the sky. Also, climbing plants reach out “tentacles” and move around until they find something to grab on to to keep climbing. How do plants do that without muscles or a brain?
In: 199
For all things to be classed as living, they must be able to have sensitivity and control (among other things).
To live plants need to photosynthesise which requires photons from any source of light.
The leaves in plants is where photosynthesis mostly takes place so they have ‘light receptors’.
The plant is able to alter the texture of the stem or leaf causing it to face towards the source of light.
Plants also have a hormone called Auxin which causes plant cells to get longer. When the sun shines on the parts with Auxin, the hormone moves to the shadier side meaning that side grows faster. This causes the plant to grow towards the sunlight.
The process of plants following the sun through the day is called heliotropism. The process of growing towards light is called phototropism.
Hope this helps 🙂
Latest Answers