BIO 201 Chapter Notes - Chapter 6: Lipid Bilayer, Cell Membrane, Glycolipid
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Document Summary
Chapter 5 membrane structure, synthesis, and transport: plasma membrane: separates the internal contents of a cell from its external environment, thin and fluid. Proteins associate with membranes in three different ways: membrane proteins have three different ways of associating with a membrane, types of membrane proteins: Integral membrane proteins are of two types: transmembrane proteins. In most transmembrane proteins, each segment is folded into an alpha helix structure: stable in a membrane because the nonpolar amino acids interact favorably with the hydrophilic lipid tails. Integral membrane proteins: a protein that cannot be released from the membrane unless it is dissolved with an organic solvent or detergent. Fluidity of membranes: fluidity: a property of biomembranes in which individual molecules remain in close association, yet have the ability to move rotationally or laterally within the plane of the membrane, membranes are semifluid.
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