Which Is The Best Definition Of Diffusion Quizlet

Rate of diffusion is determined by. What is the best definition of diffusion. The material that diffuses could be a solid liquid or gas.

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Passive diffusion is the movement of molecules across a membrane such as a cell membrane.

Which is the best definition of diffusion quizlet. Diffusion is the passive movement of molecules from an area of high concentration to an area of low concentration. Steepness of the gradient and other characteristics of the specific molecule in question such as its size clarity or solubility is usually the best predictor of a substance s direction of diffusion. Which is the best definition of diffusion. Movement of water across a semipermeable membrane from an area of high water concentration to an area of lower water concentration c.

The movement of molecules from an area of their higher concentration to an area of their lower concentration. Which is the best definition of osmosis. The diffusion of a substance across a biological membrane without expenditure of energy by the cell. Diffusion is a physical process that refers to the net movement of molecules from a region of high concentration to one of lower concentration.

In facilitated diffusion a molecule is transported across a membrane with the help of a carrier protein. The movement does not require energy. Movement of molecules from an area of their higher concentration to an area of their lower concentration b. Random movement of molecules across a concentration gradient until the difference in concentration between two regions is near zero a process in which molecules move across a semipermeable membrane until the number of molecules of water is nearly equal on both sides.

The movement of water across a semi permeable membrane from an area of higher water concentration to an area of their lower concentration. Similarly the medium in which diffusion occurs could also be in one of the three physical states. This form of diffusion is regulated by protein channels in the membrane and requires no energy input from the cell active transport movement of molecules or ion into or out of the cell against its concentration gradient from low to high and requires an input of energy. Learn with flashcards games and more for free.

Learn vocabulary terms and more with flashcards games and other study tools. Movement of molecules from an area of their lower concentration to an area of their higher concentration.