10 14 07

10 14 07 - 31. Has 2 answers! About isotopes.a and c 15....

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31. Has 2 answers!!! About isotopes…a and c 15. Chemical cycle. Movement of Materials Plasma membrane—controls the movement of material in and out of the cell/organelle Inherent energy Solute gradient Diffusion Osmosis Active or facilitated transport What is a solution? A mixture between a solvent and a solute Solutes move from high to low concentration Diffusion and Osmosis Diffusion—the passive movement of molecules from a higher to a lower concentration until equilibrium is reached Slippery-slide effect—high concentration to low concentration Gases move through the plasma membranes by diffusion. When you breathe in…that’s a form of simple gas diffusion. O2 goes into blood; CO2 goes out of the body HIGH TO LOW! Ex. dye in a beaker. It diffuses throughout the beaker…adding energy speeds up the process Gas exchange in lungs by diffusion Osmosis The diffusion of water across a differentially permeable membrane cue to concentration differences Solvent goes solute stays home
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This note was uploaded on 04/10/2008 for the course BIO 100 taught by Professor Robinson during the Fall '08 term at BYU.

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10 14 07 - 31. Has 2 answers! About isotopes.a and c 15....

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