Biology Ch. 3
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 theory | All organisms are made of cells; All existing cells are produced by other living cells; The cell is the most basic unit of life.
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| cytoplasm | A jellylike fluid that fills the inside of a cell.
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| organelle | Structures specialized to perform distinct processes within a cell.
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| prokaryotic cell | A cell without a nucleus or other membrane-bound organelles.
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| eukaryotic cell | A cell with a nucleus and other membrane-bound organelles
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| cell membrane | Double-layer of phospholipids that forms a boundary between a cell and the surrounding environment and controls the passage of materials into and out of a cell.
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| fluid mosaic model | Model that describes the arrangement and movement of the molecules that make up a cell membrane.
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| selective permeability | Condition or quality of allowing some, but not all, materials to cross a barrier or membrane
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| diffusion | Movement of dissolved molecules in a fluid or gas from a region of higher concentration to a region of lower concentration.
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| concentration gradient | Difference in the concentration of a substance from one location to another
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| osmosis | Diffusion of water molecules across a semipermeable membrane from an area of higher water concentration to an area of lower water concentration.
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| isotonic | Solution that has an equal concentration of dissolved particles compared with another solution.
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| hypertonic | Solution that has a higher concentration of dissolved particles compared with another solution.
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| hypotonic | Solution that has a lower concentration of dissolved particles compared with another solution.
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| active transport | Energy-requiring movement of molecules across a membrane from a region of lower concentration to a region of higher concentration.
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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:
Mr.Devine
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