Which diagram represents active transport?

8.2.1 Identify root hair cells, as seen under the light microscope, and state their functions

8.2.2 State the pathway taken by water through root, stem and leaf as root hair cell, root cortex cells, xylem and mesophyll cells

8.2.3 Investigate, using a suitable stain, the pathway of water through the above-ground parts of a plant

8.2.4 Explain that the large surface area of root hairs increases the rate of the absorption of water by osmosis and ions by active transport