| 1 |
The first step in the cycle of an enzyme is; |
- A. Substrate binds to enzyme
- B. Substrate converted
- C. Products released
- D. Enzyme become free
|
| 2 |
Beriberi can be produced by the lack of ......... . |
- A. Vitamin A
- B. Vitamin B
- C. Vitamin BI
- D. Vitamin C
|
| 3 |
Anabolism constitute ................ processes. |
- A. Construction
- B. Destruction
- C. Both a & b
- D. None
|
| 4 |
Lock and key model was proposed by: |
- A. Emil Fischer
- B. Melcher
- C. Koshland
- D. Saugeo
|
| 5 |
Denaturation of enzyme is caused by: |
- A. Increased pH
- B. Decreased pH
- C. Increases in temperature above optimum temperature
- D. Decreases in temperature
|
| 6 |
When we add more substrate to an already occurring enzymatic reaction and there is no increase in the rate of reaction, what would you predict? |
- A. All active site have been occupied by substrate molecules
- B. The enzyme molecule have denatured
- C. More substrate acted as inhibitor
- D. More substrate has disturbed the pH of the medium
|
| 7 |
Enzymes are made up of ............. . |
- A. protein
- B. Carbohydrates
- C. Lipids
- D. Triglyceride
|
| 8 |
Optimum temperature for enzymes of human body is: |
- A. 86<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°C</span>
- B. 37<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°C</span>
- C. 38<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°C</span>
- D. 39<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°C</span>
|
| 9 |
Induced Fit model was proposed by: |
- A. Emil Fischer
- B. Melcher
- C. Koshland
- D. Saugeo
|
| 10 |
Enzymatic reactions are _______ of times faster than uncatalyzed reactions: |
- A. Millions
- B. Hundreds
- C. Thousands
- D. Billion
|