Which hormone regulates blood sugar levels?

Last Updated: 26 Jun 2026

A reliable solution begins by identifying the organ, tissue, cell, hormone, nutrient, pathogen, or biological process named in the stem and then linking it with its precise function or defining feature. Questions may also test blood components, vitamins, glands, sense organs, communicable diseases, and deficiency disorders. Restate the question in your own words, predict the answer before checking the options, and confirm that the explanation and correct-option field both point to Insulin.

AThyroxine

BAdrenaline

CInsulin

DCortisol

Correct Answer: InsulinYour Answer: C

Explanation

Thyroxine is incorrect because it refers to a different organ, substance, process, or medical association. Adrenaline is also incorrect; it may be biologically important, but its principal role or defining feature is not the one being tested here. Cortisol is incorrect because its function, source, target, or disease relationship does not match the question. Decide whether it concerns anatomy, physiology, blood, hormones, vitamins, immunity, pathogens, or disease. Therefore option C, Insulin, is factually consistent with the stem, the marked correct index, and the explanation. Insulin produced by beta cells of pancreas lowers blood glucose by promoting glucose uptake into cells. Glucagon raises blood glucose.

Important Notes

d is Insulin, corresponding to option C. The answer field, correct index, and both explanations must remain aligned.
Read the complete stem and identify the exact demand: organ, gland, hormone, cell, tissue, nutrient, enzyme, pathogen, vector, deficiency disease, body fluid, or physiological function.
Learn endocrine facts as source–hormone–target–effect–disorder chains. Common errors arise when students confuse the gland producing a hormone with the organ affected by it.
Thyroxine, Adrenaline, Cortisol are eliminated here because none satisfies the precise requirement of the stem. Practising the reason for each rejection is more reliable than memorising only the correct choice.

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FAQ

SSC CGL Human Body FAQs

Common questions and clear answers for this topic.

Which body systems are most important for SSC CGL preparation?

The digestive, circulatory, nervous, and skeletal systems appear most frequently, along with sensory organs and basic endocrine functions.

How many bones are there in the human body, and is this commonly asked?

Yes, the human body has 206 bones, and questions about the largest, smallest, and total bone count appear fairly often.

What kind of blood-related questions come up in SSC CGL?

Questions usually cover blood group compatibility, the role of platelets in clotting, and basic facts about blood pressure and heart function.

Do I need detailed biochemistry knowledge for the human body section?

No, most questions focus on what each organ does and why, rather than the detailed biochemical processes behind it.

How can I retain human body facts more effectively for the exam?

Linking facts to real-life observations, like why pulse is checked at the wrist, makes them easier to recall than memorizing textbook lines.

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