- 1(current)
Q. No.A change in an amino acid located distantly from the active site of an enzyme can affect the specificity of the enzyme towards its substrate by:
| 1. | making the enzyme unstable |
| 2. | cause a relocation of the enzyme within a cell |
| 3. | changing the shape of the protein |
| 4. | changing the optimum pH and temperature values for the enzyme |
Enzymes speed up the chemical reactions by:
1. Getting used up in the reaction
2. Formation of different products
3. Converting endothermic reactions to exothermic
4. Lowering activation energy
The substrate concentration at which the enzyme catalyzed reaction achieves ½ Vmax is its ____ value.
| 1. Km | 2. Kcat |
| 3. pKa | 4. Q10 |
Low temperature:
1. Preserves enzyme in a temporary inactive state
2. Denatures the enzyme
3. Makes enzyme more active
4. Does not have any affect on enzyme activity
The graph shown below shows the effect of a certain factor on the rate of a reaction catalyzed by an enzyme. The X-axis would show the said factor and that will be:
| 1. substrate concentration | 2. pH |
| 3. enzyme concentration | 4. temperature |
| A | B | C | |
| 1. | Gastric lipase | Salivary amylase | Lingual lipase |
| 2. | Pepsin | Salivary amylase | Trypsin |
| 3. | Pepsin | Trypsin | Lactase |
| 4. | Rennin | Maltase | Sucrase |
- 1(current)
Q. No.
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