OnlineCBT
Biology · BIOMOLECULES
हिन्दीConsider the following statements regarding factors affecting enzyme activity: (A) Every enzyme has an optimum pH and optimum temperature at which its activity is maximum. (B) Low temperature preserves the enzyme in a temporarily inactive state, whereas high temperature destroys enzymatic activity due to heat denaturation. (C) With an increase in substrate concentration, the velocity of the enzymatic reaction keeps rising indefinitely without reaching a maximum velocity (Vmax). (D) Competitive inhibitors closely resemble the substrate in structure and bind to the active site, thereby reducing enzyme activity. How many of the above statements are correct?
Correct answer · Option 3
Only three
Explanation
Statements (A), (B), and (D) are correct (3 statements). Statement (C) is incorrect because velocity reaches a plateau at Vmax when all enzyme molecules are saturated with substrate.
