| 81. | Organic molecules that increase the rate of metabolic reactions with themselves changing are known as |
| a. | coenzymes |
| b. | enzymes |
| c. | substrates |
| d. | reactants |
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Answer: (b).enzymes
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| 82. | Protein portion of an enzyme when it is combined with organic molecule is termed as |
| a. | apoenzyme |
| b. | co-enzyme |
| c. | holoenzyme |
| d. | co-factors |
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Answer: (a).apoenzyme
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| 83. | The active form of enzyme is |
| a. | apoenzyme |
| b. | coenzyme |
| c. | holoenzyme |
| d. | none of these |
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Answer: (c).holoenzyme
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| 84. | Enzymes can |
| a. | not pass through semipermeable membrane |
| b. | pass through semipermeable membrane |
| c. | dissolve semipermeable membrane |
| d. | none of these |
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Answer: (a).not pass through semipermeable membrane
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| 85. | Which of the following is the necessary step for cultivating the microorganisms? |
| a. | Preparing a culture medium for the growth of microorganisms |
| b. | Sterilizing in order to eliminate all living microorganisms in vessel |
| c. | Inoculating the microorganisms in the prepared medium |
| d. | All of the above |
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Answer: (d).All of the above
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