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2. Glycoproteins _______. a. contain unbranched oligosaccharides b. are small fraction of the total number of...

2. Glycoproteins _______.

a. contain unbranched oligosaccharides

b. are small fraction of the total number of protein in a human cell

c. are always intracellular

d. have oligosaccharides covalently attached to aspartate residues

3. Oligosaccharides are _______.

a. are found in bacterial lipopolysaccharides

b. never found in mucins

c. never attached to hormones

d. classified as N- or O-linked when found in gangliosides

4. Lectins are found _______.

a. onliy in eukaryotes

b. only in blood

c. on the surface of hepatocytes

5. Lectins _____.

a. bind their ligands with relatively low specificity

b. prevent viruses from binding to their target cells

c. bind their ligands via multiple weak interactions

6. The _____ does not need to be determined in fully characterizing oligosaccharides and polysaccharides found in glycoproteins.

a. location of branch points

b. a-versus-B conficurations of linkages

c. amino acid sequence of the protein

d. sequence of monosaccharides

7. Cyclization of monosaccharides _______.

a. is irreversible

b. creates a and B epimers

c. is the reactionwhich forms hemiketals or hemiacetals

d. only accurs in hecoses

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Expert Solution

Nightingale answered 2 years ago
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