2. Glycoproteins _______. a. contain unbranched oligosaccharides b. are small fr

ID: 248320 • Letter: 2

Question

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

2 d

Glycoproteins have oligosaccharides covalently attached to aspartate residues

3 d

Oligosaccharides are classified as n or o linked when found in gangliosides

Lectins are found on the surface of hepatocytes

lectins bind there ligand through weak multiple interaction

Aminoacid secauence of protein

Cyclization of monosaccharide is the reaction which forms hemiketals or hemiacetals

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