1 |
Which one of the following is specific in action ? |
- A. Catalyst
- B. Enzyme
- C. Both
- D. None
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2 |
Enzymes are ............. catalysts. |
- A. Inorganic
- B. Organic
- C. Both a & b
- D. None
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3 |
Anabolism constitute ................ processes. |
- A. Construction
- B. Destruction
- C. Both a & b
- D. None
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4 |
When we add more substrate to an already occuring enzymatic reaction and there is no increase in the rate of reaction, what would you predict? |
- A. All actives sites have been occupied by substrate molecules
- B. The enzyme molecule have denatured
- C. More substrate acted as inhibitor
- D. More substrate has disturbed has disturbed the pH of the medium
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5 |
Lock and key model was proposed by ................. . |
- A. Emil Fisher
- B. Koshland
- C. Freitz London
- D. None
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6 |
Enzymatic reactions are _______ of times faster than uncatalyzed reactions: |
- A. Millions
- B. Hundreds
- C. Thousands
- D. Billion
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7 |
Which one of the following convert protein to amino acids? |
- A. Protease
- B. Lipase
- C. Both
- D. None
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8 |
The substance on which an enzyme act is called: |
- A. Cofactor
- B. Inhabitor
- C. Coenzyme
- D. Substrate
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9 |
Activation energy is required to: |
- A. Activation enzyme
- B. Start a reaction
- C. Speed up a reaction
- D. None
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10 |
Which of the following variable is least likely to affect an enzymes rate of reaction? |
- A. Temperature
- B. pH
- C. Carbon dioxide concentration
- D. Enzyme concentration
|