| 1 |
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
|
| 2 |
Non-protein part of enzymes are: |
- A. Inhibitors
- B. Substrate
- C. Cofactors
- D. Coenzymes
|
| 3 |
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
|
| 4 |
Prosthetic by all enzymes : |
- A. Required by all enzymes
- B. Loosely attached with enzymes
- C. Proteins In nature
- D. Tightly bound to enzyme
|
| 5 |
An enzyme, which breaks down starch is: |
- A. Protease
- B. Amylase
- C. Tripsn
- D. Lipase
|
| 6 |
All enzymes are composed of: |
- A. Lipids
- B. Carbohydrates
- C. Proteins
- D. Phosphates
|
| 7 |
Induced Fit model was proposed by: |
- A. Emil Fischer
- B. Melcher
- C. Koshland
- D. Saugeo
|
| 8 |
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
|
| 9 |
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 sites have been occupied by substrate molecules
- B. The enzyme molecules have denatured
- C. More substrate acted as inhibitor
- D. More substrate has disturbed the pH of the medium
|
| 10 |
Beriberi can be produced by the lack of ......... . |
- A. Vitamin A
- B. Vitamin B
- C. Vitamin BI
- D. Vitamin C
|
