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Plasma Membrane

Structure & Function

Kylie Tincher

on 3 November 2012

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Transcript of Plasma Membrane

Plasma Membrane A. Glycolipid
Provide Energy B. Glcoprotein
Conjugated protein having a carbohydrate component . C. Carbohydrate Chain
They help the cell recognize other cells. D. Polar heads
Hydrophilic- Water loving E. Nonpolar Tails
Hydrophobic- Water hating F. Phospholipid Bilayer
A two-layer membrane that surrounds the cell and keeps unwanted substances out, G. Cytoskeleton
Protein filaments
Maintains the shape and protects the cell. I. Cholesterol
It helps stabilize the membrane. H. Peripheral Protein
Proteins that adhere only temporarily to the membrane. J. Integral Protein
Permanently attached to the membrane. Channel Protein Allows a particular molecule or ion to cross the plasma membrane freely. Carrier Protein Selectively interacts with a specific molecule or ion so that it can cross the plasma membrane. Cell Recognition Protein Helps the body recognize when it's being invaded by pathogens so that an immune reaction can occur. Receptor Protein The binding of this molecule causes the protein to change its shape and thereby bring about a cellular response Enzymatic Protein The integral membrane proteins of the electron transport chain carry out the final steps to aerobic respiration. Facilitated Transport The passage of such molecule as as glucose and amino acids across the plasma membrane Active Transport Molecules or ions move through the plasma membrane, accumulating either inside or outside the cell BY: Kylie Tincher Vesicle Formation Exocytosis- A vesicle fuses with the plasma membrane as secretion occurs. Endocytosis- Cells take in substances by vesicle formation. Phagocytosis- Cell Eating. Pinocytosis- Cell drinking.
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