test 2 Flashcards
(41 cards)
Number of stereo isomers
2^n ; n= # of chiral centers
Chiral center
different on all four sides, never CH2 or CH3
Amylopectin and ______ have simliar linkages
Glycogen a(1-4) a(1-6)
What is the biological functions of HDL
transports cholesterol and phospholipids from cells back to the liver
A monounsaturated fatty acid is
a fatty acid with a carbon chain which has just one carbon-carbon double bond
Enatiomer
have the same connections; mirror images
Diastereomers
not mirror images
Palmitic acid is
saturated
If Linoleic acid were to undergo complete
hydrogenation, which saturated fatty acid would be formed?
stearic acid
1 ml, 1 mg
1 mL = 100 dL
1 mg = 1000 g
D-glucose is often called by other names, such as corn sugar and grape sugar. It is
also referred to as _____.
blood sugar
Which functional group is oxidized in an aldose
the aldehyde CHO
The fluid mosaic model proposes that
proteins are embedded into the cell membrane
Even though maltose is an animal product and cellobiose is produced by plants, both
carbohydrates produce ____ molecules when hydrolyzed
glucose
The structure of glycerophospholipids contains
a phosphate group, glycerol, two fatty acids, and an alcohol molecule
The lipid that is a cell surface receptor for hormones and drugs is a
ganglioside
Which of the following is released from the gallbladder into the small intestine to aid
digestion by dispersing dietary lipids into fine emulsions
Bile salts
Which of the following compounds share the steroid ring structure
bile salts and cholesterol
Omega-3 fatty acids are not produced in the body and must be obtained in our diet. What class of fatty acids are the omega-3s
polyunsaturated
Oleic acid has the formula CH3(CH2)7(CH = CH(CH2)7CO2H. The carbon –
carbon double bond in oleic acid is usually cis. Compared to saturated fatty acids with the same
number of carbon atoms, cis-oleic acid will have
a lower melting point due to a kink in the hydrocarbon tail
Waxes are compounds that are
mixtures of water insoluble compounds, especially esters
Identify the structure below
β-D-mannopyranose
Triglycerides are esters composed of
three fatty acids and one glycerol
Monosaccharides that react with Benedict’s solution are known as _____ sugars
reducing
