UH BIOL 1361 - Cell Membranes and Membrane Transport (2 pages)

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Cell Membranes and Membrane Transport



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Cell Membranes and Membrane Transport

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The 5th lecture regarding an introduction to cell membranes.


Lecture number:
5
Pages:
2
Type:
Lecture Note
School:
University of Houston
Course:
Biol 1361 - Intro to Biological Science
Edition:
1

Unformatted text preview:

BIOL 1361 1nd Edition Lecture 5 Outline of Last Lecture I Hormonal Regulation of Digestion II More than a Mouthful III Designing the Experiment Outline of Current Lecture I Understanding Correlation Table II Cell Membranes and Membrane Transport III Structure of Cell Membrane Current Lecture I II Understanding Correlation Table a 0 05 b 0 01 c 0 001 Cell Membranes and Membrane Transport a Living Cell Membrane i Video Mouse mammary gland tissue collagen b Preview i Components of cell membrane move around ii Selective Permeability only certain molecules can cross the cell membrane iii Cell Membrane Plasma Membrane III Structure of Cell Membrane a The Fluid Mosaic Model Fig 5 2 i Cell membrane is a phospholipid bilayer with proteins inserted through membrane ii Lipids and proteins move around iii Extracellular Layer b Lipids Fig 5 5 These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute i All lipids are hydrophobic c Phospholipid i Glycerol 2 Fatty Acids Phosphate Choline ii Joined by an ester linkage iii Forms by dehydration d Saturated Fatty Acid i Hydrocarbon chain has all single bonds 1 Carbons are saturated with H ii Side chains pack tightly iii Solid at Room Temperature e Unsatruated Fatty Acid i Side chain has 1 or more double bonds 1 Carbons NOT fully saturated with H ii Double bond causes a kink iii Can t pack tightly iv Liquid at Room Temperature



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