- 1(current)
Q. No.Which one is correct?
| 1. | Inorganic catalysts work efficiently at high temperature and high pressure while enzymes get damaged at high temperature (above 40°C) |
| 2. | Thermophilic organisms living in hot vents and sulphur springs have enzymes that are stable and retain their catalytic power even at high temperature (80 - 90°C) |
| 3. | Ribozymes are nucleic acids behaving like enzyme |
| 4. | All are correct |
Find the correct statement
1. Catalysed reactions proceed at rates higher than that of uncatalysed ones.
2. In skeletal muscle under anaerobic conditions lactic acid is formed from pyruvic acid.
3. In yeast during fermentation ethanol is formed from pyruvic acid.
4. All of these
Which of the following statements about enzymes is true?
1. Enzymes do not alter the overall change in free energy for a reaction
2. Enzymes are proteins whose three dimensional shape is key to their functions
3. Enzymes speed up reactions by lowering activation energy
4. Enzyme are highly specific for reactions
5. An enzyme like any protein has the secondary and tertiary structure.
6. The energy input needed to start a chemical reaction is called activation energy
1. All are correct
2. All except 5
3. 5 and 6
4. 2 and 4
- 1(current)
Q. No.
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