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Plasma Membrane [7.2]
Goals:
• Understand the concept of homeostasis in relation to the plasma membrane
• Demonstrate and understand how the plasma membrane regulates movement into and out of the cell
SPI 1 Identify the cellular organelles associated with major cell processes.SPI 7 Predict the movement of water and other molecules across selectively permeable membranes.
• The structure of the plasma membrane allows control over what leaves and enters the cell (selective permeability)• The plasma membrane is
a phospholipid bilayer: it’s two sheets of phospholipids stuck together like a sandwich• The cell membrane
contains cholesterol, proteins, and carbohydrates.