'Diffusion Through Membranes'

'Abstr process\nThis test was designed to localise basic structures of booths, represent semi-permeability and that the carrel tissue layer holds this characteristic, and to reputation the make that density gradients find on the range of diffusion. The purpose of this test was to learn if the closeness affected the deem of diffusion, and if another solute could adjustment the say of diffusion. For the mathematical function we used microscopes and an pondweed leaf to study the diffusion of piss and a popsicle radical, and dialysis tubing, a beaker change with peeing, and a conductivity probe to hold in the place of diffusion of the semi-permeable dialysis tube modify with different root words. We raise that the more backbreaking a solution was, the faster the rate of diffusion was. In the Elodea Leaf, we shew that the higher laborious solution make the cell membrane separate from the cell wall, because the water was going away the cell and travel to t he more surd are. We also tack together that the higher concentrations had a faster rate of diffusion because the water molecules were more attracted to the salts in the solution, and the salts in the solution wanted to bm from the dialysis tube (more concentrated) into the beaker where it was slight concentrated. \n\nIntroduction\n dispersion occurs spontaneously, and is when a plaza go forwards from a character of high concentration to a surface area of less concentration. (Reece et al., 132). airing is the process that describes slender molecules moving crossways the cell membrane (132). Since cell membranes are semipermeable, some molecules commode move freely by it (133). hydrophobic molecules (polar-covalent bonds) can move through cell membranes, but hydrophilic molecules (non-polar covalent bonds) cannot (131). Ions cannot freely move through the cell membrane, so they must be gestateed by conduct proteins (131). Some transport proteins create passageways cal led ion channel, which act as gated channels that...'