MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Enzyme Technology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of these is correct for mixed inhibition? |
| A. | Lowers to 0.5 V<sub>max</sub> and 0.5 K<sub>m</sub> |
| B. | V<sub>max</sub> is unchanged and K<sub>m</sub> increases 2K<sub>m</sub> |
| C. | Lowers to 0.5 V<sub>max</sub> and K<sub>m</sub> remains unchanged |
| D. | Lowers to 0.67 V<sub>max</sub> and K<sub>m</sub> increases to 2K<sub>m</sub> |
| Answer» E. | |
| 2. |
In competitive inhibition, what happens to Vmax and Km if [I] = Ki? |
| A. | Lowers to 0.5 V<sub>max</sub> and 0.5 K<sub>m</sub> |
| B. | V<sub>max</sub> is unchanged and K<sub>m</sub> increases 2K<sub>m</sub> |
| C. | Lowers to 0.5 V<sub>max</sub> and K<sub>m</sub> remains unchanged |
| D. | Lowers to 0.67 V<sub>max</sub> and K<sub>m</sub> increases to 2K<sub>m</sub> |
| Answer» C. Lowers to 0.5 V<sub>max</sub> and K<sub>m</sub> remains unchanged | |
| 3. |
The __________ inhibition gives the following rate equation. (V= frac{V_{max} [S]}{K_m+[S](1+ frac{[S]}{K_s})} ) |
| A. | Substrate |
| B. | Mixed |
| C. | Non-competitive |
| D. | Competitive |
| Answer» B. Mixed | |
| 4. |
______________ inhibition represent the following rate equation. (V= frac{ left ( frac{V_{max}}{1+ frac{[I]}{K_i}} right )[S]}{K_m+[S]} ) |
| A. | Substrate inhibition |
| B. | Competitive inhibition |
| C. | Product inhibition |
| D. | Non-competitive inhibition |
| Answer» E. | |
| 5. |
Inhibition of invertase by sucrose falls into which category of inhibition? |
| A. | Substrate inhibition |
| B. | Non-competitive inhibition |
| C. | Product inhibition |
| D. | Competitive inhibition |
| Answer» B. Non-competitive inhibition | |
| 6. |
Uncompetitive inhibition is most noticeable at low substrate concentration and can be overcome at high substrate concentration. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
The following rate equation represents _____________ inhibition. (V= frac{V_{max} [S]}{K_m (1+ frac{I}{K_i})+[S]} ) |
| A. | competitive |
| B. | mixed |
| C. | non-competitive |
| D. | uncompetitive |
| Answer» B. mixed | |
| 8. |
Substances which reduce the rate of enzyme catalyzed reactions are known as ____________ |
| A. | substrates |
| B. | enzymes |
| C. | products |
| D. | inhibitors |
| Answer» E. | |