2.21 Mineral uptake in roots

1. Magnesium (Mg2+) is taken up into the roots by active transport from the soil the soil.
2. The magnesium is then send up through the xylem, into the leaves so that they can synthesize and make cholrophyll.
3. Nitrate (NO cubed) is taken up into the roots by active transport from the soil and sent up through the xylem into the leaves so that the leaves can produce amino acids which then produces protein.
4. Occasionally, nitrogen is also used in the formation of DNA in plants.