JEE Main 2019 — Biomolecules Question with Solution
From: JEE Main 2019 (Online) 12th January Evening Slot
Question
I. They activate many enzymes
II. They participate in the oxidation of glucose to produce ATP
III. Along with sodium ions they are responsible for the transmission of nerve signals
Choose an option
Show full solutionCorrect option: D
Step-by-step explanation
All the statements are correct. K+ being metallic unipositive ions work as enzyme activators. These also participate in many reactions of glycolysis and Kreb’s cycle to produce ATP from glucose.
Being unipositive these are also equally responsible for nerve signal transmission along with Na+.
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This is a previous-year question from JEE Main 2019, covering the Biomolecules chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.