A & P Lab book exercise
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| selectively permeable plasma membrane | regulates the passage of small molecules through the membrane
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| passive transport | diffusion and osmosis are examples and this process requires no ATP
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| phospholipid bilayer | a double layer of phospholipid molecules plus several other components such as cholesterol and glycolipid
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| hydrophilic | water loving
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| hydrophobic | water fearing
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| integral proteins | proteins containing membrane channelsthat regulate the passage of specific ions through the membrane
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| active transport | movement of molecules that require ATP to pass through the membrane
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| Brownian movement | the motion that causes molecules to bump into adjacent molecules
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| kinetic energy | the energy supplied by Brownian movement
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| diffusion | the net movement of substances from a region of greater concentration to a region of lower concentration
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| concentration gradient | this exists if there is aregion with a higher concentration of a substance and an area with a lower concentration gradient
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| equilibrium | equal distibution occurs
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| osmosis | the net movement of water through a selectively permeable membrane
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| osmotic pressure | created by more solute in the solvent
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| reverse osmosis | process in which the pressure applied to arm B is greater than the osmotic pressure
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| isotoic solution | a solution that has the same solute concentrations as a cell
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| hypertonic solution | a solution containing more solute than a cell
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| hypotonic solution | a solution containing less solute than a cell
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| crenate | when a cell will shrink when there is a hypertonic solution present
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| lyse | when a cell will burst due to the presence of an hypotonic solution
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| hemolysis | the process of a blood cell rupturing in hypotonic solution
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| tonicity | the effect of solutions on cells
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| endocytosis | the active transport of materials into the cell
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| phagocytosis | the movement of large particles into the cell
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| pinocytosis | the movement of small molecules and fluid into the cell
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| exocytosis | the active transport of materials out of the cell
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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