lecture02nth - • net movement from higher concentration...

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1 Figure 5-3 Term concept check for students – solute, solvent, concentration, anion, cation, mole Figure 5-3 mass balance if amount of substance stays constant, then gains must be offset by losses amount of X = previous amount of X + gain of X - loss of X Diffusion • results from molecular motion • it is free! (no energy required, passive)
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Unformatted text preview: • net movement from higher concentration to lower concentration (down concentration gradient) • very fast over short distances, very slow over long distances • electrically-charged molecules or ions are also affected by electric gradients • slower for larger molecules...
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This note was uploaded on 12/01/2010 for the course BIO SCI Bio Sci E1 taught by Professor Catherineloudin during the Spring '10 term at UC Irvine.

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