COMEDK 2025 Evening Solved Paper

Concept:Essential amino acids must be obtained from the diet because the human body cannot synthesise them.Explanation:Leucine and tryptophan are two of the nine essential amino acids.Hence option B is correct.Option A is false because “invert sugar” is an equimolar mixture of glucose and fructose obtained by hydrolysis of sucrose, not pure fructose.Option C is false because curdling of milk involves denaturation and aggregation of the milk protein casein.Option D is false because amylose is a linear (unbranched) polymer of $\alpha$‑$\mathrm{D}$‑$(+)$‑glucose units; the branched starch component is amylopectin.Answer:Option B