Monday, 14 March 2011

2.53




The branching pattern of roots increase surface area to allow more absorption of H2O to take place. When you zoom in on the roots, they have root hairs.

From a microscopic level you can see the following:

1)     Active transport of minerals against the concentration gradient takes place.
2)     This encourages Osmosis to take place, encouraging the roots to take up water.
3)     The water is transported through the xylem, once again through osmosis.

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3 comments:

  1. jobu15 March 2011 at 06:00

    in which cells does active transport take place.

    why does osmosis then occur?

    ReplyDelete
  2. Sooey19 March 2011 at 01:47

    1. Root hair cells
    2. Due to the increased concentration of minerals etc in the root hair cells???

    ReplyDelete
  3. jobu22 March 2011 at 05:17

    right

    ReplyDelete

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