Question map
Not attempted Correct Incorrect ★ Bookmarked
Loading…
Q113 (CDS-I/2010) Science & Technology › Biotechnology & Health › Human nutrition and health Answer Verified

Consider the following statements: 1. Iodine is necessary for the thyroid gland to make adrenaline. 2. Iodine deficiency leads to goiter in human beings. 3. Iodine is secreted by pancreas and helps in regulating cholesterol level. Which of the statements given above is/are correct ?

Result
Your answer: —  Â·  Correct: D
Explanation

Statement 1 is incorrect because iodine is essential for the synthesis of thyroxin (thyroid hormone), not adrenaline [c1, t6]. Adrenaline is produced by the adrenal medulla, located in the adrenal glands atop the kidneys [c4, t2, t3]. Statement 2 is correct; iodine deficiency impairs thyroid hormone production, leading to the enlargement of the thyroid gland, a condition known as goiter [c1, t1, t4]. Statement 3 is incorrect because iodine is not secreted by the pancreas; the pancreas primarily produces insulin to regulate glucose metabolism [t3]. Iodine's only known biological function in humans is the synthesis of thyroid hormones [t4, t6]. While thyroid hormones influence general metabolism, iodine itself is not a pancreatic secretion for cholesterol regulation. Therefore, only statement 2 is correct.

Sources

  1. [1] Science , class X (NCERT 2025 ed.) > Chapter 6: Control and Coordination > Do You Know? > p. 110
  2. [2] Science , class X (NCERT 2025 ed.) > Chapter 6: Control and Coordination > 6.3 HORMONES IN ANIMALS > p. 109
  3. [3] https://www.ncbi.nlm.nih.gov/books/NBK613062/
How others answered
Each bar shows the % of students who chose that option. Green bar = correct answer, blue outline = your choice.
Community Performance
Out of everyone who attempted this question.
50%
got it right
✓ Thank you! We'll review this.

SIMILAR QUESTIONS

IAS · 2002 · Q65 Relevance score: 0.18

With reference to the human body consider the following statements: 1. The production of somatotropin goes up when a person exercises 2. Men’s testes produce progesterone 3. Women’s adrenal glands secrete testosterone 4. Stress causes the adrenals to release very less amount of cortisol than usual Which of these statements are correct?

CDS-II · 2022 · Q75 Relevance score: 0.08

Consider the following statements about Tincture of Iodine : 1. It is an antiseptic solution. 2. lodine is kept in alcohol-water mixture. 3. Concentration of iodine is very low. How many of the above statements is/are correct?

IAS · 2004 · Q10 Relevance score: -0.59

Consider the following statements: 1. Non-function of lachrymal gland is an important symptom of deficiency of Vitamin A. 2. Deficiency of Vitamin B1 can lead to indigestion and heart enlargement. 3. Vitamin C deficiency can lead to pain in the muscles. 4. Deficiency of Vitamin D causes increased loss of Ca++ in urine. Which of the statements given above are correct?

NDA-I · 2015 · Q51 Relevance score: -1.00

Which endocrine gland requires iodine to synthesize a particular hormone whose deficiency may eause goitre disease ?

IAS · 2003 · Q129 Relevance score: -1.28

With reference to normal human beings consider the following statements: 1. In response to the presence of HCL, secretian is produced from the duodenum 2. Enterogastrone is produced in the small intestine in response to the presence of fatty acids Which of these statements is/are correct?