Biology Section 3.3
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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| What is the function of the cell membrane? | It forms a boundary between a cell and outside environment.
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| Describe the structure of the Fluid Mosaic Model (phospholipid bilayer). | It's the arrangement of the molecules to make up a cell membrane.
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| Why do phospholipds form a double layer? | Phospholipids form a double layer because of their structure. The heads form the outer layers and the tails form the inner layer.
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| What does selectively permeable mean? | It allows some, but not all materials to cross.
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| What is a membrane receptor? | It's a molecule that other molecules attach to, causing changes in the cell.
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| How does a membrane receptor transmit messages across membranes? | The receptor opens up and allows certain ions in through it's receptor channel into 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.
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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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