6. In competitive inhibition, a factor is obtained from the measurement of

A. V_max
B. K_M
C. Y-intercept in Lineweaver-Burk Plot
D. None of these

7. Which of these proteases is not a cysteine active site protease?

A. Calpain
B. Cathepsin D
C. Papain
D. None of the above

8. Given an enzyme with a Km = 10m M and Vmax = 100 m mol/min. If [S] = 100 m M, which of the following will be true?

A. A 10 fold increase in Vmax would increase velocity 10 fold y
B. A 10 fold decrease in Km would increase velocity
C. Both (a) and (b)
D. A 10 fold increase in Vmax would decrease velocity 20 fold

9. The conformational change in an enzyme after the substrate is bound that allows the chemical reaction to proceed, can be explained by

A. induced fit
B. transition
C. fit and fine
D. Pasteur

10. The active site of an enzyme remains

A. at the center of globular proteins
B. rigid and does not change shape
C. complementary to the rest of the molecule
D. none of the above