Question

Which of the following is not true for allosteric enzyme?

(a) Greek word ‘allo’ means other and ‘steros’ means site

(b) Enzymes having other site

(c) Regulatory metabolites are called effector or modulator or modifier

(d) Each of two or more enzymes with identical function but different structure

This question was posed to me in homework.

My query is from Allosteric Enzyme in chapter Enzymes of Enzyme Technology

Answer 1

Correct answer is (d) Each of two or more enzymes with identical function but different structure

Explanation: “Each of two or more enzymes with identical function but a different structure.” This statement is not true for allosteric enzymes as it is defining isoenzyme. The following statements are true for allosteric enzymes:

• Greek word ‘allo’ means other and ‘steros’ means site.

• Enzymes having other sites.

• Regulatory metabolites are called effector or modulator or modifier.