Which of the following enzymes was first isolated and purified in the form of crystals?

Hydrolytic enzymes that do not show activity at low pH are called .......

How do enzymes increase the rate of chemical transformation?

Assertion : Enzymes have active sites and substrates have reactive sites on their surface respectively.
Reason : Active and reactive sites push the enzyme and substrate molecules away from each other.

Some nucleic acids behave like enzymes; these are called .........

Which of the following is a non-protein enzyme?