NR 228: Week 2 Vitamins & Minerals Quiz 2026 |Chamberlain
1. Which vitamin is primarily known for its role in collagen synthesis and wound
healing?
A. Vitamin C
B. Vitamin K
C. Vitamin D
D. Vitamin A
Answer: A
Rationale: Vitamin C (ascorbic acid) is essential for the formation of collagen, a protein
that helps hold body cells together and is vital for wound healing.
2. Deficiency of which vitamin leads to rickets in children and osteomalacia in
adults?
A. Vitamin E
B. Vitamin D
C. Vitamin B12
D. Vitamin C
Answer: B
Rationale: Vitamin D aids in calcium absorption; a deficiency results in soft, weak bones
known as rickets in children.
,3. What is the primary function of Vitamin K in the body?
A. Energy metabolism
B. Vision health
C. Blood clotting
D. Nerve transmission
Answer: C
Rationale: Vitamin K is essential for the synthesis of prothrombin and other clotting
factors by the liver.
4. Which substance is required for the absorption of Vitamin B12 in the small
intestine?
A. Bile
B. Hydrochloric acid
C. Amylase
D. Intrinsic factor
Answer: D
Rationale: Intrinsic factor, secreted by the gastric mucosa, must bind to Vitamin B12 for it
to be absorbed in the ileum.
5. To prevent neural tube defects, women of childbearing age should ensure
adequate intake of:
A. Folate
B. Riboflavin
C. Thiamine
D. Niacin
Answer: A
Rationale: Adequate folic acid (Folate) intake before and during early pregnancy
significantly reduces the risk of neural tube defects like spina bifida.
, 6. A patient with night blindness is most likely deficient in which vitamin?
A. Vitamin K
B. Vitamin D
C. Vitamin A
D. Vitamin E
Answer: C
Rationale: Vitamin A is a component of rhodopsin, the pigment in the retina that allows for
vision in low light.
7. Which mineral is the primary electrolyte found in extracellular fluid and helps
regulate fluid balance?
A. Potassium
B. Sodium
C. Magnesium
D. Iron
Answer: B
Rationale: Sodium is the major cation in extracellular fluid and is critical for maintaining
fluid balance and nerve impulse transmission.
8. What is the recommended Adequate Intake (AI) for sodium for healthy
adults?
A. 500 mg
B. 2300 mg
C. 3000 mg
D. 1500 mg
Answer: D
Rationale: The AI for sodium is set at 1500 mg per day to ensure adequate intake while
limiting potential for high blood pressure.
1. Which vitamin is primarily known for its role in collagen synthesis and wound
healing?
A. Vitamin C
B. Vitamin K
C. Vitamin D
D. Vitamin A
Answer: A
Rationale: Vitamin C (ascorbic acid) is essential for the formation of collagen, a protein
that helps hold body cells together and is vital for wound healing.
2. Deficiency of which vitamin leads to rickets in children and osteomalacia in
adults?
A. Vitamin E
B. Vitamin D
C. Vitamin B12
D. Vitamin C
Answer: B
Rationale: Vitamin D aids in calcium absorption; a deficiency results in soft, weak bones
known as rickets in children.
,3. What is the primary function of Vitamin K in the body?
A. Energy metabolism
B. Vision health
C. Blood clotting
D. Nerve transmission
Answer: C
Rationale: Vitamin K is essential for the synthesis of prothrombin and other clotting
factors by the liver.
4. Which substance is required for the absorption of Vitamin B12 in the small
intestine?
A. Bile
B. Hydrochloric acid
C. Amylase
D. Intrinsic factor
Answer: D
Rationale: Intrinsic factor, secreted by the gastric mucosa, must bind to Vitamin B12 for it
to be absorbed in the ileum.
5. To prevent neural tube defects, women of childbearing age should ensure
adequate intake of:
A. Folate
B. Riboflavin
C. Thiamine
D. Niacin
Answer: A
Rationale: Adequate folic acid (Folate) intake before and during early pregnancy
significantly reduces the risk of neural tube defects like spina bifida.
, 6. A patient with night blindness is most likely deficient in which vitamin?
A. Vitamin K
B. Vitamin D
C. Vitamin A
D. Vitamin E
Answer: C
Rationale: Vitamin A is a component of rhodopsin, the pigment in the retina that allows for
vision in low light.
7. Which mineral is the primary electrolyte found in extracellular fluid and helps
regulate fluid balance?
A. Potassium
B. Sodium
C. Magnesium
D. Iron
Answer: B
Rationale: Sodium is the major cation in extracellular fluid and is critical for maintaining
fluid balance and nerve impulse transmission.
8. What is the recommended Adequate Intake (AI) for sodium for healthy
adults?
A. 500 mg
B. 2300 mg
C. 3000 mg
D. 1500 mg
Answer: D
Rationale: The AI for sodium is set at 1500 mg per day to ensure adequate intake while
limiting potential for high blood pressure.
