(2) The degree of steepness or inclination, e.g., of a road or other geographic features. These proteins use ATP hydrolysis to pump materials against their concentration gradients. concentration gradient: a solution in which the concentration (density) of a solute increases in a continuous fashion from top to bottom, or end to end, of a container (for example, the centrifuge tube in density-gradient centrifugation). Synonym(s): concentration gradient concentration gradient in a sentence - Use "concentration gradient" in a sentence 1. Concentration gradient: The gradient between an area where a substance is at a high concentration and an area where it the substance is at a low concentration. A concentration gradient occurs where the concentration of something changes over a certain distance. They have a rich blood supply to keep a concentration gradient. Biology is the study of living things. Definition: Concentration equilibrium. Biology is brought to you with support from the. And when you have this situation where you have a higher concentration and then a lower concentration, we call this a concentration gradient. Decomposers: Microorganisms that break down waste products and dead matter. Denatured The concentration is changing from high to low and so we call this a concentration, concentration... concentration gradient. Others can smell the scent because some of those molecules are always traveling away from the perfumed person, the source, out into the air—moving down the concentration gradient, from a high concentration to a lower concentration. The concentration of scent molecules is highest on areas of the skin that have had perfume or aftershave directly applied. Pure water has the highest water potential. A concentration gradient occurs where the concentration of something changes over a certain distance. This biology dictionary is here to help you learn about all sorts of biology terms, principles, and life forms. Cytoplasm: The water-based gel where the organelles of all living cells are suspended.  The diffusion of solvents, such as water, through a semipermeable membrane, is classified as osmosis. A solution with a low solute concentration has a high water concentration, and a high water potential. Concentration Gradient Definition Biology. 2. Gradient Definition noun, plural: gradients (1) A slope , which may be upward or downward. It is broken down into many fields, reflecting the complexity of life from the atoms and molecules of biochemistry to the interactions of millions of organisms in ecology. When there is no difference in concentration. For example, a few drops of food dye in a glass of water diffuse along the concentration gradient, from where the dye exists in its highest concentration (for instance, the brightest blue or red) to where it occurs in its lowest concentration (the water is still clear). In cell biology, a diffusion is a main form of transport for necessary materials such as amino acids within cells. Biology: Chapter 16 - Plant responses to abiotic stress (could add to) 3 Terms. For example, a few drops of food dye in a glass of water diffuse along the concentration gradient, from where the dye exists in its highest concentration (for instance, the brightest blue or red) to where it occurs in its lowest concentration (the water is still clear).
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