BIOL 1001 Chapter : Biology 1001 Chapter 5
Document Summary
Protection (isolates the cell from the external environment & biochemical reactions) Regulates contents in and out of the cell. Solvent- a fluid that is capable of dissolving a substance; i. e. water, it can dissolve salt and more. The fluid mosaic model (describing the different molecules. Transport embedded in the cell membrane)- 1972 nicolson & singer. Solute a substance that can be dissolved; i. e. salt. Solution the mixture of the dissolved solute in the solvent. Gradient allows molecules to move from one area to the next; allows them to. Facilitated diffusion; i. e. flowing with something, a channel. Osmosis; movement of water (from a low solute concentrated region to a flow from one region to the next. Passive transport (going down steps; going with the flow) high solute concentrated region), across a semi-permeable membrane; water usually follows salt. Water diffuses from a region of high water concentration to one of low water concentration across a semi-permeable membrane.
