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BICH 409 EXAM III QUESTIONS WITH VERIFIED ANSWERS

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BICH 409 EXAM III QUESTIONS WITH VERIFIED ANSWERS

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BICH 409 EXAM III QUESTIONS WITH VERIFIED
ANSWERS


Enzymes that catalyze the hydrolysis of the peptide backbone are called - Answers -
Proteases

Chymotrypsin cleaves after - Answers - Phe, Tyr, Trp

Trypsin cleaves after - Answers - Arg and Lys

Elastase cleaves after - Answers - Gly, Ala, Val, Ser

The serine protease catalytic triad is composed of - Answers - Asp, Ser & His

Serine protease reaction mechanisms involve: - Answers - General acid-base and
covalent catalysis.

In the First step of the reaction catalyzed by a serine protease, the essential histidine
functions as a: - Answers - General base

What is the C-4 epimer of glucose? - Answers - Galactose

Which of the following is not a glycoaminoglycan? - Answers - Amylopectin

Glycogen is a polymer composed of what? - Answers - Glucose

Which of the statements about glycogen are true? - Answers - Glycogen is a branched
polymer consisting of a(1⟶4) and a(1⟶6) glycosidic linkages.

What is the enzyme classification number for serine protease? - Answers - III Hydrolase
(E.C.3)

D-xylose in aqueous solution exists in all of the following forms except? - Answers -
Linear aldehyde

Which of the following statements about the nature of cellulose is true? - Answers -
Cellulose provides structure for the plant cell

What is a N-acetyl sugar? - Answers - A NH3 group replaces an OH group

Increasing cis double bonds ____ the melting point - Answers - Decreases

Increasing carbons ____ the melting point - Answers - Increases

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