- 1(current)
Q. No.Subtopic: Enzymes |
78%
Level 2: 60%+
NEET - 2016
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Which of the following statement is incorrect about enzymes?
| 1. | They are highly substrate specific |
| 2. | In thermophilic organisms, enzymes can catalyze reaction at high temperatures, i.e. 90°C |
| 3. | All enzymes are proteinaceous in nature |
| 4. | Some enzymes have metal ions |
Subtopic: Enzymes |
75%
Level 2: 60%+
NEET - 2024
Hints
Consider the given two statements:
| Assertion (A): | When enzyme catalyzed reactions are observed, the rate would be vastly higher than the same for uncatalyzed reaction |
| Reason (R): | Enzymes bring down activation energy barrier making the transition of ‘Substrate’ to ‘Product’ easier. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A) |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Enzymes |
90%
Level 1: 80%+
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Which of the following statements about enzymes is wrong?
| 1. | Enzymes are denatured at high temperatures |
| 2. | Enzymes are mostly proteins but some are lipids also |
| 3. | Enzymes are highly specific. |
| 4. | Enzymes require optimum pH and temperature for maximum activity. |
Subtopic: Enzymes |
85%
Level 1: 80%+
NEET - 2013
Hints
The number of correct statements from the given statements are:
1. 2
2. 3
3. 4
4. 5
| I: | Almost all enzymes are proteins. |
| II: | Some nucleic acids can behave like enzymes. |
| III: | No enzyme in living organisms can function above 40 °C. |
| IV: | Enzymes are the reason that chemicals react with each other. |
| V: | Enzymes are not sensitive to pH in their environment. |
2. 3
3. 4
4. 5
Subtopic: Enzymes | Enzyme Catalysis | Factors Affecting Enzyme Catalysis Reaction |
Level 3: 35%-60%
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- 1(current)
Q. No.
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