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VITAMINS AND THEIR DEFICIENCY DISEASES (Part-I)

📆 November 6, 2024

Total Questions: 32

21. The deficiency of which nutrient causes night blindness? [S.S.C. Online Graduate Level (T-I) 7.06.2019 (Shift-III)]

Correct Answer: (c) Vitamin A
Solution:Night blindness is one of the first signs of vitamin A deficiency. In its more severe forms, vitamin A deficiency contributes to blindness by making the cornea very dry, thus damaging the retina and cornea.

22. The deficiency of which of the following vitamins causes night-blindness? [S.S.C. Online C.H.S.L. (T-I) 6.08.2021 (Shift-I) S.S.C. Online CHSL (T-I) 24.01.2017 (Shift-III)]

Correct Answer: (b) Vitamin A
Solution:Night blindness is one of the first signs of vitamin A deficiency. In its more severe forms, vitamin A deficiency contributes to blindness by making the cornea very dry, thus damaging the retina and cornea.

23. Deficiency of which of the following vitamin causes beriberi in humans? [S.S.C. Online MTS (T-I) 9.08.2019 (Shift-II) S.S.C. Online MTS (T-I) 20.08.2019 (Shift-I)]

Correct Answer: (d) Vitamin B₁
Solution:Beriberi is a deficiency of thiamine, more commonly known as vitamin B₁. Your body needs thiamine to break down and digest the foods you eat, to keep your metabolism going, and help your muscles and nervous system do their jobs effectively. Beriberi can affect the cardiovascular system or central nervous system.

24. Beri-beri occurs due to the deficiency of: [S.S.C. JE Civil Exam 23.03.2021 (Shift-II)]

Correct Answer: (d) Vitamin B₁
Solution:Beriberi is a deficiency of thiamine, more commonly known as vitamin B₁. Your body needs thiamine to break down and digest the foods you eat, to keep your metabolism going, and help your muscles and nervous system do their jobs effectively. Beriberi can affect the cardiovascular system or central nervous system.

25. Deficiency of Thiamine results in _____ . [S.S.C. Online CHSL (T-I) 16.01.2020 (Shift-I)]

Correct Answer: (d) Beriberi
Solution:Beriberi is a deficiency of thiamine, more commonly known as vitamin B₁. Your body needs thiamine to break down and digest the foods you eat, to keep your metabolism going, and help your muscles and nervous system do their jobs effectively. Beriberi can affect the cardiovascular system or central nervous system.

26. Both haemoglobin and myoglobin require ______ for formation. [S.S.C. Online Graduate Level (T-I) 12.06.2019 (Shift-III)]

Correct Answer: (c) Iron
Solution:Both hemoglobin (in red blood cells, transports oxygen in blood) and myoglobin (in muscle cells, stores oxygen) are complex proteins that contain a heme group. At the center of the heme group is an iron atom, which is essential for binding oxygen. Without sufficient iron, the body cannot produce enough functional hemoglobin and myoglobin, leading to anemia.
  •  Vitamin B₁₂: Essential for red blood cell maturation, but not a direct component of hemoglobin or myoglobin structure.
  •  Vitamin A: Essential for vision and cell growth, not directly involved in hemoglobin/myoglobin formation.
  •  Calcium: Essential for bone health, muscle contraction, and nerve function, but not a component of hemoglobin or myoglobin.

27. The deficiency of Niacin-a vitamin of B complex group causes the disease _____ . [S.S.C. Online Graduate Level (T-I) 7.09.2016 (Shift-II)]

Correct Answer: (b) Pellagra
Solution:A severe niacin deficiency leads to pellagra, a condition that causes a dark, sometimes scaly rash to develop on skin areas exposed to sunlight, bright redness of the tongue, and constipation/diarrhea.

28. The specific role of Vitamin K is in the synthesis of— [S.S.C. Online Graduate Level (T-I) 30.08.2016 (Shift-III)]

Correct Answer: (d) Prothrombin
Solution:Vitamin K is a fat-soluble vitamin crucial for blood clotting. It serves as a co-factor for an enzyme that modifies specific proteins, including prothrombin and other clotting factors (Factors VII, IX, X). These modifications are necessary for these proteins to bind to calcium ions, which is a critical step in the coagulation cascade. Prothrombin is then converted to thrombin, which in turn converts fibrinogen to fibrin, forming the blood clot.

29. Which of the following is essential for blood clotting in humans? [S.S.C. Online C.P.O.S.I. (T-I) 3.01.2017 (Shift-II)]

Correct Answer: (b) Vitamin K
Solution:Vitamin K is a necessary participant in synthesis of several proteins that mediate both coagulation and anticoagulation. It is noteworthy for the synthesis of Prothrombin (coagulation factor II) that forms thrombin in the clotting process. Vitamin K is primarily involved in the clotting mechanism of blood.

30. Deficiency of which of the following causes non-clotting of blood? [S.S.C. Online CHSL (T-I) 8.01.2017 (Shift-I) S.S.C. Online MTS (T-I) 16.09.2017 (Shift-I)]

Correct Answer: (b) Vitamin K
Solution:Vitamin K is a necessary participant in synthesis of several proteins that mediate both coagulation and anticoagulation. It is noteworthy for the synthesis of Prothrombin (coagulation factor II) that forms thrombin in the clotting process. Vitamin K is primarily involved in the clotting mechanism of blood.
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