JEE Main 2021 · ChemistryMultiple choiceSingle correctMediumConceptual

JEE Main 17 March 2021, Shift 1, Chemistry Q49

Question 49 of 90 in this shift, Chemistry question 19 of 30, Section A.

With respect to drug-enzyme interaction, identify the wrong statement.

(1)Competitive inhibitor binds to the enzyme’s active site
(2)Allosteric inhibitor changes the enzyme’s active site
(3)Allosteric inhibitor competes with the enzyme’s active siteOfficial answer
(4)Non-Competitive inhibitor binds to the allosteric site

Official answer

Option 3

NTA final key.

Chapter: Chemistry in Everyday Life
Topic: Chemistry in Everyday Life
Idea tested: Competitive vs Allosteric Enzyme Inhibition

Same idea in other shifts

Asked 4× in all

25 Jul 2022, Shift 2 · Q79Some drugs bind to a site other than the active site of an enzyme. This site is known asEasySingle correct
28 Jul 2022, Shift 1 · Q79Statements about Enzyme Inhibitor Drugs are given below : (A) There are Competitive and Non-competitive inhibitor drugs. (B) These can…EasyOther
28 Jul 2022, Shift 2 · Q47Two statements in respect of drug-enzyme interaction are given below **Statement I :** Action of an enzyme can be blocked only when an…EasyTwo statements

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.