For his 40th birthday, I had my eye on a vintage watch. It would complement his tattered sweaters and declare to the world that he is, in fact, employed. But when I mention this to him, he balks. He says that what he really wants isn't a good, but a service: a threesome with me and another woman.
Osmosis is a special type of diffusion whereby water is moved from an area of high water potential into an area of lower water potential. In principle, the same concepts applyâ¦ for osmosis as it does for diffusion. The particles travel in a concentration gradient without the use of energy.
So far, weâve only described the movement of solutes across membranes. However, water (the. solvent) also moves across cell membranes. The movement of water across a selectively permeable. membrane from a region where water is highly concentrated to a region where its concentration is. lower is known as osmosis. Osmosis is a special kind of diffusion, the diffusion of water. In osmosis water always moves by diffusion across a selectively permeable membrane from a. hypotonic solution (low solute concentration, high water conc.) to a hypertonic solution (high solute. concentration, low water conc.).