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Cell Membrane

QuestionAnswer
Water is a polar molecule. What does this mean? The water molecule is positively charged on one side and negatively charged on the other.
What does the Cell Membrane maintain? Homeostasis
What is homeostasis? The internal balance of a cell's need for nutrients and removal of wastes.
The Cell Membrane is a double membrane that is selectively permeable. What does this mean? The cell membrane allows some molecules in, others not.
What is another name for the Cell Membrane? the Plasma Membrane
What is the structure of the Cell Membrane? Phospholipids in a bilayer.
Name the 2 main parts of a phospholipid. Phosphate heads and fatty acid tails
Describe the Phospolipid-bilayer. 2 layers of phospholipids back-to-back
What does the non-polar interior (fatty acid tails) of the cell membrane prevent? Creates a barrier and prevents the movement of water in all locations except at the 'gates'.
What does the polar exterior (phosphate heads) of the Cell Membrane allow? Makes the cell water soluble and allows the cell to move within water.
Created by: 100001916589047
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