Here we describe the pathways and mechanisms driving water uptake and transport through plants ... it must cross through pits in the conduit cell walls (Figure 6). Bordered pits are cavities ...

eg urea No Osmosis Water moves from a high to a low concentration across a partially permeable membrane and down a concentration gradient Water No Active transport Substances move against a ...

osmosis and active transport. Sample exam questions - cell biology - AQA Understanding how to approach exam questions helps to boost exam performance. Question types will include multiple choice ...