Enzymes - Medical Science

Q1:

In the enzyme-catalyzed reaction shown below, what will be the effect on substances A, B, C, and D of inactivating the enzyme labeled E2?

A ---(E1)---> B ---(E2)---> C ---(E3)--->

A A, B, C, and D will all still be produced

B A, B, and C will still be produced, but not D

C A and B will still be produced, but not C or D

D A will still be produced, but not B, C, or D

ANS:C - A and B will still be produced, but not C or D

C and D will still be produced but at a slower rate than A and B.