Friday, 22 February 2013

2.53 explain how water is absorbed by root hair cells

Roots branch to increase the surface area and to increase the chances of finding a water source. Root hairs are epidermal cells on the surface of the root: they also increase the surface area for absorption. They absorb  minerals by active transport and water by osmosis. These substances then move to the xylem.
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13 comments:

  1. Unknown4 August 2014 at 10:05

    hey howd u do in ur gcses, specially the sciences u musta done gr8 :)

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    Replies
    1. Unknown15 November 2015 at 03:40

      I believe she got A* in all of them :p

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    2. HannahHelp30 December 2015 at 17:12

      Yeah I got three A*s :) Hope you both do too!

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    3. William3 April 2020 at 14:05

      Hi I am taking my GCSE next year do you still thing this will get me an A* or should I look elsewhere. Regardless of the answer thank you very much for the recourse.

      Delete
  2. Unknown8 September 2014 at 01:00

    epic thanks

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  3. Unknown19 April 2016 at 12:40

    so helpful :) I am at the beginning of my iGCSE course (Y9)

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  4. Raabia 6 May 2016 at 01:29

    This comment has been removed by the author.

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  5. Unknown11 May 2016 at 11:43

    how long did this website take to deign?

    ReplyDelete
  6. Unknown11 May 2016 at 11:43

    design not deign

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  7. Clarity2 October 2016 at 09:41

    Thank you so much for spending so much time making these science pages. My whole year uses them for revision. We're in year 11. I only started a blog because I saw how amazing yours was. Mine isn't really about the same thing at all but you still inspired me and helped my brother get three A* so thank you.

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  8. Mike Tsang26 June 2017 at 02:52

    The Biology Syllabus has changed.... New Syllabus Blog:

    http://igcse-biology-2017.blogspot.hk

    ReplyDelete
  9. SophieRice26 June 2017 at 18:08

    more at

    http://igcse-biology-notes.blogspot.hk/2017/06/253-explain-how-water-is-absorbed-by.html

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  10. Anonymous12 May 2018 at 00:23

    thank you so much for building this website

    ReplyDelete

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