Transport Protein

Transport Protein - Initially (inside) (outside)...

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Transport Protein Form channels that allow selected polar ions and molecules to pass across a membrane (integral) Receptor Proteins Recognize and bind molecules from other cells that act as chemical signals Cell Adhesion Proteins Bind cells together **FIGURE 6.5 Pg. 119** Passive Transport No energy required Happens due to difference in concentration gradient on 2 sides of membrane Promotes a solute to move from most concentrated to least concentrated High Low, no ATP, depending solely on molecular size and membrane solubility: Simple diffusion Facilitated Diffusion Aquaporins Gated Channels Carrier Proteins Hypertonic- more Hypotonic- less Isotonic- equal Step 1: Add everything up
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Unformatted text preview: Initially (inside) (outside) hypo-,hyper-, or iso-?? Step 2: Look at the paragraph The cell membrane is permeable to water and fructose Fructose will flow out of the cell until .15 mol inside and .15 mol outside Step 3: Re-add numbers after fructose moves Step 4: Water will move from low solute concentration to high concentration. The water is trying to dilute the strong stuff! Which way does water move? Based on what happens to the movement of water, you can say what happens to the cell. If water move into cell, it lyses If water leaves, it shrinks If no water movement, the cell just chills...
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This note was uploaded on 12/09/2011 for the course BIOLOGY 1305 taught by Professor Adair during the Spring '09 term at Baylor.

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