Difference between revisions of "Auxin"
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: [[Auxin]] is [[photophobic]] so it will build up on the darker side of a [[plant]]. This causes [[Cell (Biology)|cells]] on the shaded side of a [[plant]] to elongate, bending a [[shoot]] towards the source of [[light]]. | : [[Auxin]] is [[photophobic]] so it will build up on the darker side of a [[plant]]. This causes [[Cell (Biology)|cells]] on the shaded side of a [[plant]] to elongate, bending a [[shoot]] towards the source of [[light]]. | ||
: [[Auxin]] is found in high [[concentration]]s in [[shoot]] tips. | : [[Auxin]] is found in high [[concentration]]s in [[shoot]] tips. | ||
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| + | ===Using Auxin=== | ||
| + | : Gardeners use [[auxin]] to encourage cuttings of [[plant]]s to grow new [[root]]s when they are planted. | ||
| + | : [[Auxin]] can be used to kill [[plant]]s by causing them to grow too fast, using up their stores of [[energy]]. Since auxin is sprayed on [[leaf|leaves]], [[plant]]s with larger [[leaf|leaves]] will [[Absorb (Biology)|absorb]] more and are more likely to die. | ||
Revision as of 19:13, 24 June 2019
Key Stage 4
Meaning
Auxin is a plant hormone that causes plant cells to elongate.
About Auxin
- Auxin is photophobic so it will build up on the darker side of a plant. This causes cells on the shaded side of a plant to elongate, bending a shoot towards the source of light.
- Auxin is found in high concentrations in shoot tips.