Biology, Pages 135-140CD-ROM contains: investigations, videos, word study & glossary, cumulative tests and chapter guides. |
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Page 65
... in its environment . For example , compared to its surroundings , an animal cell has a much higher concentration of potassium ions and a much lower concentration of sodium ions . The plasma membrane helps maintain 65.
... in its environment . For example , compared to its surroundings , an animal cell has a much higher concentration of potassium ions and a much lower concentration of sodium ions . The plasma membrane helps maintain 65.
Page 69
... compared to the outside . ) The membrane potential acts like a battery , an energy source that affects the traffic of all charged substances across the membrane . Because the inside of the cell is negative compared to the outside , the ...
... compared to the outside . ) The membrane potential acts like a battery , an energy source that affects the traffic of all charged substances across the membrane . Because the inside of the cell is negative compared to the outside , the ...
Page 100
... compared to lipids having smaller molecular masses 4. Which of the following processes includes all others ? a . osmosis b . diffusion of a solute across a membrane c . facilitated diffusion d . passive transport e . transport of an ion ...
... compared to lipids having smaller molecular masses 4. Which of the following processes includes all others ? a . osmosis b . diffusion of a solute across a membrane c . facilitated diffusion d . passive transport e . transport of an ion ...
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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