| 1 |
Denaturation of enzyme is caused by: |
- A. Increased pH
- B. Decreased pH
- C. Increases in temperature above optimum temperature
- D. Decreases in temperature
|
| 2 |
What is True about enzymes? |
- A. They make biochemical reactions to proceed spontaneously
- B. They lower the activation energy of a reaction
- C. They are not very specific in their choice of substrates
- D. They are needed in large quantities
|
| 3 |
Prosthetic by all enzymes : |
- A. Required by all enzymes
- B. Loosely attached with enzymes
- C. Proteins In nature
- D. Tightly bound to enzyme
|
| 4 |
What is the effect of change in pH? |
- A. Digradation of amino acids at active sites
- B. Ionization of amino acids at active sites
- C. Formation of new amino acids at active sites
- D. All of these
|
| 5 |
Lock and key model was proposed by: |
- A. Emil Fischer
- B. Melcher
- C. Koshland
- D. Saugeo
|
| 6 |
Almost all enzymes are: |
- A. Carbohydrates
- B. Fatty acids
- C. Proteins
- D. Vitamins
|
| 7 |
To what category of molecules do enzymes belong? |
- A. Carbohydrates
- B. Lipids
- C. Nucleic acids
- D. Proteins
|
| 8 |
Beriberi can be produced by the lack of ......... . |
- A. Vitamin A
- B. Vitamin B
- C. Vitamin BI
- D. Vitamin C
|
| 9 |
Activation energy is required to: |
- A. Activation enzyme
- B. Start a reaction
- C. Speed up a reaction
- D. None
|
| 10 |
Trypsin works at the PH of: |
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