Neuroscience Ch3
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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Polar covalent bonds | a molecule which, while electrically neutral overall, has some atoms more or less attracted to the shared electron (covalent), and therefore the molecule has an uneven distribution of charge. H2O!
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Ionic bond | bond between two molecules with net electrical charges (molecules called ions) that are opposite
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Cations | ions w/ net positive charge
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Anions | ions w/ net neg charge
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Phospholipids | hydrophobic parts of the membrane which form barrier btwn h2O and h2Osoluble (Na+ K+ Ca2+, Cl-). Are nonpolar chains of carbn bonded w/hydrgn. but also: has a polar phosphate group (phosphate bonded to 3 oxys) at one end.polar head and nonpolar tail!
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Peptide bonds | chain of amino acids. These chains form into, not just the “primary structure” of a simple chain, but spirals (“secondary”), globular shapes (“tertiary”) via bending/folding. AND tertiary units can bond with each other (“quaternary”)
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Ion channels | if you get a quaternary structure of amino acids, it might form a “pore” with a hydrophobic (nonpolar) outsides and hydrophilic (polar) insides. It might be selective due to the size of pore and a-acid makeup, and thus only let e.g., Na+ through.
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Sodium-potassium pump | if equilibrium btwn inside and outside of neuron were reached, then neuron couldnt have its neg resting potential. This pump breaks down ATP when there’s Na+ on the inside, which gives it the energy to push out Na+ and pull in K+.
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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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Created by:
jwdink
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