Plant Nutrition + Transport: The Uptake + Transport of Plant Nutrients

1. Carbon dioxide 2. Nitrogen 3. Magnesium 4. Phosphorus

1. Carbohydrates 2. Lipids 3. Proteins 4. Nucleic acids

1. Minerals taken up by plant roots are in a watery solution 2. Absorbed through the epidermis of the root and must be taken up by root cells before they enter the xylem 3. Selective permeability of the plasma membrane of root cells controls what minerals enter the xylem

1. Intracellular route
2. Extracellular route

Water and solutes are selectively taken up by a root epidermal cell, usually a root hair, and transported from cell to cell through plasmodesmata

1. Water and solutes pass into the root in the porous cell walls of root cells
2. They do not enter any cell plasma membrane until they reach the root endodermis