BIOL 4100 EXAM 2 QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED LATEST UPDATE
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Module
BIOL4100
Institution
BIOL4100
BIOL 4100 EXAM 2 QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED LATEST UPDATE
vast majority of double bonds in unsaturated fatty acids are _______
cis
double bonds in fatty acids create _______
kinks
in glycerophospholipids ________ replaces one of the fatty chains
phophoester
phos...
outer leaflet with carbohydrate portions exposed on the cell surface
Glycocalyx
(Cell coat) carbohydrate rich layer forming the outer coat of a eukaryotic cell. it is
formed by the Glycoproteins are predominantly cell surface proteins
what does glycocalyx do?
, 1. Protects cells against mechanical and chemical damage
2. Barrier for microorganisms
3. Involved in cell-cell interactions
N-acetylgalactosamine (GalNAc)
The O-glycosidic linkage is to the hydroxyl of serine (Ser, S), threonine (Thr, T)
N-acetylglucosamine (GlcNAc)
The N-glycosidiclinkage is through the amide group of asparagine (Asn, N)
where are carbohydrate groups added?
in the ER and Golgi
Glycoproteins are predominantly what type of proteins?
cell surface
glycocalyx aka
pericellular matrix
where is glycocalyx found mainly?
epithelial cells
integral membrane proteins
- inserted into bilayer
- can only be released with detergents
- detergents disrupt hydrophobic interactions!!
- see photo for types
peripheral membrane proteins
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