Q. No.Papain is a popular ingredient in meat tenderizer. Meat coated with tenderizer if kept in a refrigerator for some time. What is the expected effect on the enzyme activity?
1. Increases
3. Remains same
3. Decreases
4. Lost
1. Increases
3. Remains same
3. Decreases
4. Lost
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Consider the given two statements:
| I. | Absence of secondary metabolites does not result in immediate death, but rather in a long-term impairment of the organism's survivability. |
| II. | Secondary metabolites often play an important role in plant defense against herbivory and other interspecies defenses. |
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct and II is incorrect
4. Both I and II are incorrect
The metabolic process by which fatty acids are broken down to generate acetyl-CoA occurs in:
1. Mitochondria and Peroxisomes
2. Mitochondria and Chloroplasts
3. RER and Golgi apparatus
4. SER and Golgi apparatus
Consider the given two statements:
| I: | Sucrose is a non-reducing sugar. |
| II: | Sucrose is a disaccharide. |
| 1. | Both I and II are correct and II explains I |
| 2. | Both I and are correct but II does not explain I |
| 3. | I is correct and II is incorrect |
| 4. | Both I and II are incorrect |
What linkage is shown in the following figure [indicated by an arrow]?
| 1. β-1,4-glycosidic bond 2. α-1,4-glycosidic bond 3. α-1,β-4-glycosidic (head-to-head) linkage 4. α-4,β-1-glycosidic (head-to-head) linkage |
 |
If the concentration of enzymes 1 and 2 are increased but the concentration of enzyme 3 is decreased, the rate of formation of D will:
1. Decreases
2. Increases
3. Remains same
4. First increase and then decrease
Consider the given two statements:
| I. | The rate determining step for an enzyme-substrate reaction is always the second step in which [ES] is converted into the product. |
| II. | Once the enzyme performs its duty, it is free to do more work. |
| 1. | Both I and II are correct and II explains I |
| 2. | Both I and are correct but II does not explain I |
| 3. | I is correct and II is incorrect |
| 4. | Both I and II are incorrect |
In the given diagram showing two helices A and B:
| 1. | A is left handed helix and B is right handed helix |
| 2. | A is right handed helix and B is left handed helix |
| 3. | Both are right handed helices |
| 4. | Both are left handed helices |
An enzyme catalyzed reaction has a △G of -30 Kcal/mol. The amount of enzyme is doubled. What will be the △G for the new reaction?
1. -60 kcal/mol
2. -30 kcal/mol
3. +30 kcal/mol
4. +60 kcal/mol
Identify the incorrect statement regarding Michaelis-Menten kinetic analyses of enzyme action:
| 1. | the total enzyme concentration studied at each substrate concentration is fixed in analysis of enzyme kinetics. |
| 2. | formation of enzyme-substrate complex does not appreciably decrease the concentration of substrate. |
| 3. | Km decreases with competitive inhibition. |
| 4. | maximal velocity is reached when the enzyme-substrate complex is equal to the total concentration of enzyme present. |
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