Difference between revisions of "Xylem"
(Created page with "==Key Stage 3== ===Meaning=== right|300px|thumb|A [[Magnify|magnified image of a plant vein with '''xylem''' dyed orange....") |
|||
| Line 17: | Line 17: | ||
: The '''xylem''' supports the [[stem]] of the [[plant]] making it harder to bend under its own [[weight]]. | : The '''xylem''' supports the [[stem]] of the [[plant]] making it harder to bend under its own [[weight]]. | ||
: The '''xylem''' is formed when [[Xylem Cell|xylem cells]] create a [[chemical]] called [[lignin]] which builds up in a spiral shape around the [[Cell Wall|cell wall]]. The [[Xylem Cell|xylem cells]] then die to leave behind hollow tubes supported by the spiral of [[lignin]]. | : The '''xylem''' is formed when [[Xylem Cell|xylem cells]] create a [[chemical]] called [[lignin]] which builds up in a spiral shape around the [[Cell Wall|cell wall]]. The [[Xylem Cell|xylem cells]] then die to leave behind hollow tubes supported by the spiral of [[lignin]]. | ||
| + | |||
| + | ===References=== | ||
| + | ====AQA==== | ||
| + | |||
| + | :[https://www.amazon.co.uk/gp/product/1471851354/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851354&linkCode=as2&tag=nrjc-21&linkId=9012a0d354024419214fb3ad5ac44ba0 ''Xylem, pages 10, 69, GCSE Combined Science Trilogy 1, Hodder, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/0198359373/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359373&linkCode=as2&tag=nrjc-21&linkId=952a73bbb09d222ecc4b50d200679849 ''Xylem, pages 12-13, 62-65, GCSE Biology; Third Edition, Oxford University Press, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/0008158754/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158754&linkCode=as2&tag=nrjc-21&linkId=27ad53b0283feeff7fc5ae04a9e205f618 ''Xylem, pages 55, 70, 72-3, 108, GCSE Biology; Student Book, Collins, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1471851338/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851338&linkCode=as2&tag=nrjc-21&linkId=425855d5890466e47189e1c21b67a1ea ''Xylem, pages 9, 10, 69, GCSE Biology, Hodder, AQA ''] | ||
Revision as of 13:25, 15 November 2019
Contents
Key Stage 3
Meaning
The Xylem is a tube used to transport of water in plants.
About the Xylem
- The xylem is made of xylem cells which have died to form hollow tubes.
- The xylem transports water and minerals absorbed by the roots up to the leaves.
Key Stage 4
Meaning
The Xylem is a tube used to transport of water in plants.
About Xylem
- Xylem transports water and minerals absorbed by the roots up to the leaves.
- Water is transported along the xylem by a process called transpiration.
- The xylem supports the stem of the plant making it harder to bend under its own weight.
- The xylem is formed when xylem cells create a chemical called lignin which builds up in a spiral shape around the cell wall. The xylem cells then die to leave behind hollow tubes supported by the spiral of lignin.