Enzymes — Predicted 2026

AI-Predicted Question Angles for UPSC 2026

Based on trend analysis, current affairs, and recurring themes in Enzymes.

Impact of specific cofactors/coenzymes on enzyme activity and their vitamin origins.

medium

While general cofactor knowledge is tested, NEET could delve deeper into specific examples, linking coenzymes like NAD+, FAD, or Coenzyme A to their respective vitamin precursors (Niacin, Riboflavin, Pantothenic acid). This tests inter-chapter knowledge (Biomolecules - Vitamins). Questions might ask about the consequence of a deficiency of a particular vitamin on enzyme function.

Application-based scenarios involving enzyme inhibition in drug action or metabolic regulation.

high

Enzyme inhibition is a critical concept, and NEET often moves towards application-based questions. A scenario describing a drug's mechanism of action as a competitive or non-competitive inhibitor, or how feedback inhibition regulates a metabolic pathway, could be presented. This would require students to apply their understanding of inhibition types and their kinetic effects ($K_m$, $V_{max}$) to a practical context.

Distinguishing between the effects of enzymes on reaction rate, activation energy, and thermodynamic parameters (Gibbs free energy, equilibrium constant).

high

This is a common conceptual trap. Questions often test whether students truly understand that enzymes only affect the *rate* of a reaction by lowering activation energy, but do not change the overall free energy change ($Delta G$) or the equilibrium constant ($K_{eq}$). A question might present multiple statements and ask to identify the one that is incorrect regarding enzyme effects on thermodynamic parameters.