Thursday, 10 March 2011

2.53 Roots structure

2 comments:

  1. add your 5 key points for water and mineral uptake
    Mr B

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  2. 1. surface area increase in 2 level : branching root pattern and the root hairs - absorb water
    2. root hair on epidermal root
    3.active transport of minerals
    4. this encourage plants to take up water my osmosis
    (dilute region = soil concentrated region = building up minerals inside these cell by active transport)
    5.water move across cortex of the root to the xylem by osmosis

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