Bio-Chemistry Exam 4

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isomers that differ at a new asymmetric carbon atom formed on ring closure

anomers

what protein polymerizes into a lattice network around a budding membrane

clathrin

unsaturated fatty acids have ___________ bonds

double

sugars that are diasteraiosomers differing in configuration at only a single asymmetric center

epimers

where in the cell are glycoproteins and glycolipids commonly located

external surface of the plasma membrane

what membrane components contain carbohydrates

glycolipids

complex polysaccharides containing amino groups

glycosaminoglycans

what type of sugar is fructose

hexose

for fatty acids, the longer the chain and the less double bonds = the ______________ the melting point

higher

what type of bacteria are used to process chitin

lactic-acid generating

disaccharide of milk

lactose

Membranes are primarily comprised of

lipids and proteins

aqueous compartments enclosed by a lipid bilayer, also known as lipid vescles

liposome

hydrolysis of large polymeric oligosaccharides

maltose

the simplest carbohydrates

monosaccharides

are D-glucose and L-glucose epimers

no

what structure is responsible for transport regulation into and out of the nucleus

nuclear pore

what structure is defined by a single membrane and plays a major role in the oxidation of fatty acids for energy conversion

peroxisome

three common types of membrane lipids

phospholipids, glycolipids, cholesterol

saturated fatty acids have ___________ bonds

single

what accounts for the wide range of carbohydrate functions

structural diversity

common table sugar

sucrose

which of the common disaccharides is not a reducing sugar

sucrose

what are the three common disaccharides

sucrose, lactose, maltose

which carbon is the w-carbon atom of a fatty acid

the methyl carbon atom at the distal end of the chain

what does the N-linked oligosaccharide core include

three mannose, two N-acetylglucosamine residues

slow rotation of lipids from one face of a membrane to the other

transverse diffusion

which structures are composed of aqueous compartments enclosed by a lipid bilayer and can be used to deliver chemicals to cells

vesicle

are D-glucose and D-galactose epimers

yes


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