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BIOCHEMISTRY: Fill in the blanks. No a nswer is used more than once. (a) _______

ID: 505961 • Letter: B

Question

BIOCHEMISTRY: Fill in the blanks. No a nswer is used more than once.

(a) _________ sugars are monosaccharides in which a hydroxyl group is replaced with a hydrogen atom.

(b) _________ is a homopolymer composed of (1 - 4) - linked N - acetyl - D - glucosamine residues that is the principle structural component of the exoskeleton of various groups of invertebrates.

( c) _________ is a homopolysaccharide that cannot be digested by mammalian salivary, gastric, or pancreatic enzymes.

(d) N - linked sugars a re attached to proteins as a 14 - residue oligosaccharide during translation in the ___________.

(e) ____________ is a galactose joined to a glucose by a - 1,4 glycosidic bond.

Explanation / Answer

a. deoxy sugars are monosaccharides in which a hydroxyl group is replaced with a hydrogen atom.

b. chitin is a homopolymer composed of (1 - 4) - linked N - acetyl - D - glucosamine residues that is the principle structural component of the exoskeleton of various groups of invertebrates.

c. cellulose is a homopolysaccharide that cannot be digested by mammalian salivary, gastric, or pancreatic enzymes.

d. N - linked sugars a re attached to proteins as a 14 - residue oligosaccharide during translation in the endoplasmic reticulum

e. lactose is a galactose joined to a glucose by a - 1,4 glycosidic bond.