AND CORRECT ANSWERS
Which of the following statements is TRUE about two monosaccharides linked together?
a) They form an oligosaccharide.
b) They contain a glycosidic bond.
c) They form a disaccharide.
d) All of the above - CORRECT ANSWERS d
In I-cell disease, certain enzymes that are supposed to be targeted to the _____ do not arrive
because of abnormal glycosylation, in which a _____ is missing from the protein.
a) lysosome; mannose 6-phosphate
b) lysosome; glucosaminoglycan
c) endoplasmic reticulum; phosphate
d) endoplasmic reticulum; mannose 6-phosphate
e) lysosome; phosphate - CORRECT ANSWERS e
The disaccharide sucrose can be cleaved into its component monosaccharides by the enzyme
_____. - CORRECT ANSWERS sucrase
Functions of proteoglycans include:
a) lubrication.
b) hormonal stimulation of red blood cell production.
, c) cell adhesion.
d) both lubrication and cell adhesion. - CORRECT ANSWERS d
Cellulose:
a) is a homopolymer of glucose.
b) contains α-1,4-glycosidic bonds.
c) can link to other glucose polymers via hydrogen bonding.
d) Both the first and third answers are correct. - CORRECT ANSWERS d
Which of the following statements is true of pectin but not of cellulose?
a) It is a polymer of glucose.
b) It is soluble.
c) It cannot be digested by animals.
d) It increases the rate at which digestion products pass through the large intestine. - CORRECT
ANSWERS b
Which of the following statements is true of a proteoglycan but not of erythropoietin?
a) It may contain N-linked carbohydrates.
b) It contains only O-linked carbohydrates.
c) The largest constituent by weight is the protein.
d) None of the above - CORRECT ANSWERS d
Which of the following statements is TRUE of the molecule glucose?