Goitre is caused by deficiency of which element?

Last Updated: 26 Jun 2026

Goitre is caused by deficiency of which element? Questions may also test blood components, vitamins, glands, sense organs, communicable diseases, and deficiency disorders. A familiar word is not automatically correct; qualifiers such as “largest,” “primary,” “deficiency,” “secreted by,” “carries,” or “controls” determine the answer. 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 Iodine.

AIron

BCalcium

CIodine

DZinc

Correct Answer: IodineYour Answer: C

Explanation

Then recall the exact source–function or deficiency–disorder pair and eliminate neighbouring concepts. Therefore option C, Iodine, is factually consistent with the stem, the marked correct index, and the explanation.✅ Correct Answer: C — Iodine Goitre (Ghengha Rog) is caused by deficiency of Iodine. The thyroid gland needs iodine to produce thyroid hormones (T3 and T4). When iodine is insufficient, the thyroid gland enlarges (swells) to compensate, forming a visible swelling in the neck called Goitre. Iron — Iron deficiency causes Anaemia (low haemoglobin), not Goitre. Calcium — Calcium deficiency causes Osteoporosis (weak bones) and Tetany (muscle cramps), not Goitre. Zinc — Zinc deficiency causes slow wound healing and impaired immunity, not Goitre. 📝 Important Note: Goitre is prevented by using Iodized salt. Iodine deficiency is the most common preventable cause of intellectual disability worldwide. India added iodine to common salt to eliminate iodine deficiency disorders (IDD).

Important Notes

ecord is Iodine, 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 nutrition facts as nutrient–source–function–deficiency pairs. Vitamins and minerals can have several roles, but SSC questions usually ask the best-known primary association.
Iron, Calcium, Zinc 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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