Question

Find the incorrect statement regarding Enzymes
A. Enzymes catalyzing the linking together of two compounds are lyases.
B. Glutamic acid is converted into glutamine in the presence of glutamine synthetase.
C. The average content of ‘S’ and that of the transition state is called activation energy.
D. Inorganic catalysts work similarly to enzymes at high temperatures.
 

• A. A, D
• B. A, B
• C. C, D
• D. B, D

Hint:

Lyases break bonds, ligases form bonds. Activation energy is the energy required to reach the transition state.

Answer 1

The Correct Option is A

Step 1: Analyzing the statements
Statement A: Enzymes catalyzing the linking together of two compounds are lyases.
This is incorrect because lyases catalyze the breaking of bonds in molecules, not the linking of them. Ligases are responsible for joining two compounds.
Statement B: Glutamic acid is converted to glutamine in the presence of glutamine synthetase.
This is correct as glutamine synthetase catalyzes the conversion of glutamic acid to glutamine.
Statement C: The average content of ‘S’ and that of the transition state is called activation energy.
This is incorrect. Activation energy is the energy required to reach the transition state, not the average content of 'S' or transition states.
Statement D: Inorganic catalysts work similarly to enzymes at high temperatures.
This is incorrect. Enzymes are much more efficient and specific than inorganic catalysts, and their activity can decrease at high temperatures due to denaturation.
Final Answer: \[ A - \text{Incorrect}, \quad D - \text{Incorrect} \]