unit 1 vocab 4 test
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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| cell membrane | protects the cell and regulates what enters and leaves the cell
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| polar | phosphate head that faces the outsides and insides of cell, freely interacting with water
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| non-polar | fatty acid tails, attached to phosphate head that remain facing the inside of the cell membrane, avoiding water in and out of the cell
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| hydrophobic | scared of water
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| hydrophilic | water loving
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| fluid mosaic | flexible lipid bi-layer with proteins embedded
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| simple diffusion | small molecules like oxygen, water, and carbon dioxide can move thru the lipid bi-layer fro high to low concentration
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| facilitated diffusion | molecules that travel from high to low, thru channel protein
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| semi-permeable | lets SOME things pass through
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| equilibrium | concentration is the same throughout the system
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| active transport | uses ATP energy to move molecules across the membrane
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| passive transport | does not require energy to move molecules across the membrane
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| channel protein | protein that allows certain molecules to pass in and out of cell, from high to low concentration
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| protein pump | protein that allows specific molecules in and out cell, from low to high concentration, uses ATP
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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.
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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:
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