1.

Assertion. Activity of an enzyme is pH-dependent. Reason. Change in pH affects the solubility of the enzyme in water.

Answer»

If both assertion and REASON are ture, and reason is the trure explanation of the assertion.
If both assertion and reason are true, but reason is not the true explanation of the assertion.
If assertion is true, but reason is false.
If both assertion and reason false.

Solution :ACTIVITY of enzyme INCREASES with increase in pH and is maximum of pH of 7.4 and then falls off. Hence assertion CORRECT.
Correct explanation, With changein pH,the external of protonation of the bases CHARGES.


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