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| 91)Which of the following enzymes is not protein? | |||
| Pepsin | Steapin | ||
| Ribozyme and Ribonuclease-p | Trypsin | ||
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| 92)The non protein organic factor firmly attached to apoenzyme is called as | |||
| Co - enzyme | Co - factor | ||
| Activator | Prosthetic group | ||
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| 93)Enzymes are different from inorganic catalysts in | |||
| Being proteinaceous in nature | Not being used up in reactions | ||
| Working at high tempature | Having a high duffusion rate | ||
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| 94)Which one of the following is correct? | |||
| All enzymes are exhaustedin chemical reaction | They are non specific in their function | ||
| All enzymes participate in metabolic reaction | Enzymes are not proteinaceous | ||
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| 95)The turnover number of an enzyme depends upon | |||
| Concentration of substrate molecule | Active sites of enzyme molecule | ||
| Size of enzyme molecule | Molecular weight of enzyme | ||
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| 96)The structural level that enables the proteins to function as enzymes | |||
| Quarternary level | Tertiary level | ||
| Secondary level | Primary level | ||
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| 97)Enzymes, vitamins, hormones have one thing in common | |||
| All are proteins | All are synthesized in organisms | ||
| All aid in regulating metabolism | All enhance oxidative metabolism | ||
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| 98)Out of total enzymes present in the cell, mitochondrion alon has | |||
| 20% | 60% | ||
| 70% | 95% | ||
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| 99)Who did show that enzymes are proteins? | |||
| Miller | Sumner | ||
| Pasteur | Leeuwenhoek | ||
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| 100)Protein part of a conjugate enzyme is known as | |||
| Apoenzyme | Co-enzyme | ||
| Co-factor | Prosthetic group | ||
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| 101)Destructive effect of high temperature on enzyme action is due to | |||
| Formation of linkage between apoenzyme and its cofactor | Acceleration of reverse reaction | ||
| Destructive of tertiary and quarternary structure of enzymes | All of these | ||
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| 102)Enzymes in nature is | |||
| Amphoteric | Colloidal | ||
| Highly sensitive | All of these | ||
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| 103)Find the wrong statement about enzyme action? | |||
| They are proteins with complex three dimensional structure | Their molecular weight is high | ||
| They act as catalyst and are required in small concentration | Their diffusion rate is very high | ||
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| 104)Enzymes have | |||
| Different pH and different temperature optima | Different pH but same temperature optima | ||
| Same pH but different temperature optima | Same pH and temperature optima | ||
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| 105)The relationship between turnover number and Km is | |||
| Inverse | Linear | ||
| Direct | None of these | ||
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