The mineral that is a component of the hormone insulin is: MCQ with Answer and Explanation

The mineral that is a component of the hormone insulin is:
A. Sulfur
B. Calcium
C. Zinc
D. Iron
Answer: Option C
Solution (By JKSSB Mock Tests)
Zinc is a component of the insulin hexamer stored in pancreatic beta cells; it stabilizes the insulin structure. Iron is in hemoglobin, calcium in bones/signaling, sulfur in some amino acids. Zinc deficiency impairs insulin secretion. Many enzymes require zinc as a cofactor.

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Biology Questions

Question #1
The deficiency of vitamin D in children causes:
A. Scurvy
B. Rickets
C. Pellagra
D. Beriberi

Correct Answer: Option B


Explanation:
Rickets is characterized by weak, deformed bones due to impaired calcium deposition from lack of vitamin D. In adults, it's osteomalacia.

This question belongs to: Science Biology
Question #2
The disease characterized by the inflammation of the liver caused by a virus is:
A. Cirrhosis
B. Nephritis
C. Hepatitis
D. Pancreatitis

Correct Answer: Option C


Explanation:
Hepatitis (A, B, C, etc.) is liver inflammation, often viral. Symptoms include jaundice, fatigue, and liver enzyme elevation. Cirrhosis is liver scarring, pancreatitis is pancreatic inflammation, nephritis is kidney inflammation. Hepatitis B and C can become chronic and lead to liver cancer.

This question belongs to: Science Biology
Question #3
The process by which plants release oxygen is:
A. Transpiration
B. Respiration
C. Nitrogen fixation
D. Photosynthesis

Correct Answer: Option D


Explanation:
During photosynthesis, water is split (photolysis), releasing oxygen as a byproduct. Respiration consumes oxygen, nitrogen fixation uses nitrogenase, transpiration releases water vapor.

This question belongs to: Science Biology