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
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
