Find out the incorrect statements regarding Enzymes
Show Hint
- Km: Approximate inverse measure of the affinity of the enzyme for a given substrate.
- Km: Approximate measure of the concentration of substrate at which the reaction rate is half of the maximum rate.
- Enzymes generally function in a broad range of temperature and pH.
- 2.7.1.2 is enzyme code for Glucose-6-Phosphotransferase.
The Correct Option is B
Solution and Explanation
Analysis of Statements:
ā Option 1: "Km: Approximate inverse measure of the affinity of the enzyme for a given substrate." š¹ Correct. Km (Michaelis constant) is an approximate inverse measure of enzyme-substrate affinity. A lower Km indicates higher affinity.
ā Option 2: "Km: Approximate measure of the concentration of substrate at which the reaction rate is half of the maximum rate." š¹ Incorrect. Km represents the substrate concentration at which the reaction rate reaches half of Vmax, but it is not just an "approximate measure" of concentration needed for half-maximal activity.
ā Option 3: "Enzymes generally function in a broad range of temperature and pH." š¹ Correct. Enzymes have optimal temperature and pH but can still function in a broader range, albeit with lower efficiency.
ā Option 4: "2.7.1.2 is enzyme code for Glucose-6-Phosphotransferase." š¹ Correct. The enzyme commission (EC) number 2.7.1.2 belongs to Glucose-6-Phosphotransferase.
Incorrect Statement: Option (2)
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