3rd Quiz 2nd years

Lysozyme functions as as

• Bacteriostatic agent

• Antiviral agent

• Antifungal agent

• Bactericidal agent

Lysozyme is a single polypeptide chain with............amino acids

• 129

• 192

• 131

• 144

Glu 52 and Asp 35 are the amino acid side chains that play a role in the lysozyme catalytic mechanism

• False

• True

(a)   Is the second substrate the comes into the active site in the lysozyme mechanism

Lysozyme cuts between the following subunits:

• D and E

• C and D

• B and C

• A and B

Lysozyme attacks the (a)   cell wall of bacteria

D ring unit is converted to a resonance-stabilized (a)   ion transition state

The positively charged oxonium ion is stabilized by nearby negatively charged Asp52 carboxylate group.

This is known as (a)   catalysis

RNA A uses a metal ion as a part of its catalytic mechanism

• True

• False

Lysozyme hydrolyzes the following glycosidic linkage between NAM and NAG subunits

• α(1-4)

• β(1-6)

• α(1-6)

• β(1-4)