| 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 |
Almost all enzymes are: |
- A. Carbohydrates
- B. Fatty acids
- C. Proteins
- D. Vitamins
|
| 3 |
Catabolism constitutes ................. processes. |
- A. Constructive
- B. Destructive
- C. Both a & b
- D. None
|
| 4 |
All enzymes are composed of: |
- A. Lipids
- B. Carbohydrates
- C. Proteins
- D. Phosphates
|
| 5 |
Lock and key model was proposed by ................. . |
- A. Emil Fisher
- B. Koshland
- C. Freitz London
- D. None
|
| 6 |
The enzyme function between a PH of ..................... . |
- A. 2 to 4
- B. 6 to 8
- C. 8 to 10
- D. 1 to 2
|
| 7 |
The molecule that fits the active sites that is called: |
- A. Substrate
- B. Enzyme
- C. Catalyst
- D. All
|
| 8 |
Prosthetic groups are: |
- A. Required by all enzymes
- B. Loosely attached with enzymes
- C. Proteins in nature
- D. Tightly bound to enzyme
|
| 9 |
Metabolism is of ............... types. |
|
| 10 |
There are about ............. to ........ enzymes in cell. |
- A. 1000-2000
- B. 1000-2050
- C. 2000-6000
- D. 2000-3000
|
