Water Uptake And Movement Up The Stem

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  • Created by: Kate
  • Created on: 27-11-12 15:47

How Does The Active Transport Of Minerals Cause Water To Move Into The Roots? 

The Endodermis is a layer of cells surrounding the Xylem. (Also known as the starch sheath as it contains starch granules). Covering the Endodermis is the Casparian *****.

The Endodermis uses Active Transport to move minerals into the Xylem, and water uses Osmosis.

Minerals = Active Transport

Water = Osmosis

Cells outside the Endodermis have a lower water potential than the inside, so water moves across into the Xylem. 

Water moves through to the Xylem using the Apoplast pathway.

The Casparian


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