Biology, Pages 135-140CD-ROM contains: investigations, videos, word study & glossary, cumulative tests and chapter guides. |
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Page 65
... molecules to flow down their concentration gradient , rather than picking them up and transporting them against their gradient . Active transport enables a cell to maintain internal concentrations of small molecules that differ from ...
... molecules to flow down their concentration gradient , rather than picking them up and transporting them against their gradient . Active transport enables a cell to maintain internal concentrations of small molecules that differ from ...
Page 84
... molecule that binds specifically to a receptor site of another molecule ) by binding to LDL receptors on membranes and then entering the cells by endocytosis . In humans with familial hypercholesterolemia , an inherited disease ...
... molecule that binds specifically to a receptor site of another molecule ) by binding to LDL receptors on membranes and then entering the cells by endocytosis . In humans with familial hypercholesterolemia , an inherited disease ...
Page 92
... its concentration gradient ( pp . 130– 131 ) . Activity Diffusion - Effects of Osmosis on Water Balance Water flows across a membrane from the side where solute is less concentrated ( 92 Transport Proteins Polar molecules ...
... its concentration gradient ( pp . 130– 131 ) . Activity Diffusion - Effects of Osmosis on Water Balance Water flows across a membrane from the side where solute is less concentrated ( 92 Transport Proteins Polar molecules ...
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active transport animal cells artificial cell blood called cotransport cell is negative Cell-Cell Recognition cellular cholesterol concentration gradient Concentrations Affect Cells Concept 7.4 Concept Check cytoplasm decreasing extracellular drive the active electrochemical gradient Endocytosis In endocytosis Energy in Active exocytosis and endocytosis extracellular solution facilitated diffusion fluid mosaic model fungi glucose Golgi hydrogen ions hydrophobic hypertonic hypotonic environment inside isotonic lipid bilayer main electrogenic pump Maintenance of Membrane membrane potential membrane proteins Membrane Structure membrane traffic move solutes nerve cell neuron occurs by exocytosis osmosis osmotic passive transport phospholipids pinocytosis plant cells plasma membrane occurs positive charge potassium ions proteins are embedded protists proton pump pump of plants Pumps Ions receptor-mediated endocytosis Salt Concentrations Affect selectively permeable Self-Quiz side where solute signal sodium-potassium pump solute(s specific transport protein store energy substance sucrose uptake sucrose-H suggested answers three sodium ions translocates transport uses energy types of endocytosis voltage Water Balance