AIIMS 2017 Zoology Hormonal Regulation of Blood Sugar MCQ Question

Option C is incorrect because insulin actually decreases blood glucose levels by promoting the uptake of glucose into cells and stimulating glycogen synthesis in the liver, not by increasing glucose levels. Insulin facilitates the conversion of glucose to glycogen (glycogenesis), which lowers blood sugar levels (option B). Option A is incorrect as it describes the action of glucagon, which increases blood glucose by hydrolyzing glycogen (glycogenolysis) in the liver. Option D is also incorrect because while insulin does promote cellular uptake of glucose, it does not increase blood glucose levels; instead, it lowers them by enhancing glucose utilization and storage.