NEET Zoology
Factors Affecting Enzyme Catalysis Reaction
Low Priority
Consistency: 10%
Weightage: 2 / 20 Yrs
High-Yield Trend
1
2024 1
2023 Questions 2 MCQs
01
PYQ 2023
easy
zoology ID: neet-202
Given below are two statements:
In the light of the above statements, choose the correct answer from the options given below:
1. Statement I is false but Statement II is true.
2. Both Statement I and Statement II are true.
3. Both Statement I and Statement II are false.
4. Statement I is true but Statement II is false.
| Statement I: | Low temperature preserves the enzyme in a temporarily inactive state whereas high temperature destroys enzymatic activity because proteins are denatured by heat. |
| Statement II: | When the inhibitor closely resembles the substrate in its molecular structure and inhibits the activity of the enzyme, it is known as competitive inhibitor. |
1. Statement I is false but Statement II is true.
2. Both Statement I and Statement II are true.
3. Both Statement I and Statement II are false.
4. Statement I is true but Statement II is false.
1
(1)
2
(2)
3
(3)
4
(4)
02
PYQ 2024
easy
zoology ID: neet-202
Regarding catalytic cycle of an enzyme action, select the correct sequential steps:
Choose the correct answer from the options given below:
1. A, E, B, D, C
2. B, A, C, D, E
3. E, D, C, B, A
4. E, A, D, C, B
| A. | Substrate enzyme complex formation. |
| B. | Free enzyme ready to bind with another substrate. |
| C. | Release of products. |
| D. | Chemical bonds of the substrate broken. |
| E. | Substrate binding to active site. |
1. A, E, B, D, C
2. B, A, C, D, E
3. E, D, C, B, A
4. E, A, D, C, B
1
(1)
2
(2)
3
(3)
4
(4)