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Lecture

MIP 300 Lecture Notes - Crystal Violet, Tetrapeptide, Prokaryote


Department
Microbio, Immun, Pathology
Course Code
MIP 300
Professor
Erica Suchman

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28 January
Eubacteria cell membranes
Membranes are an absolute requirement for all living cells, both eukaryotic and
prokaryotic
Functions
Selectively permeable barrier
Nutrient and waste transporter
Location of metabolic processes (photosynthesis, oxidative phosphorylation) and
chemotaxis receptors
Components: Phospholipid bilayer
Phosphotidylethanoloamine
Hapanoids
Similar to the steroids found in eucaryotes
Function: stabilize membranes
Proteins and glycoproteins
Peripheral proteins
Integral proteins
Glycoproteins: covalently attached oligosaccharides, either peripheral or
integral
Functions of membrane proteins
Nutrient and waste transport into and out of cell
Carry out metabolic processes (photosynthesis, oxidative phosphorylation)
Chemotaxis receptors
This model of membrane structure is called the fluid mosaic model
Eubacteria envelope: the cell wall
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