2025 BIOD121 Essentials in Nutrition TEST
BANK EXAM MODULE 4
Description
Module 4 of BIOD121 focuses on vitamins and minerals—their functions,
sources, deficiency diseases, toxicity symptoms, absorption, storage, and
classification into water-soluble vs fat-soluble groups. This exam tests your
understanding of micronutrient biochemistry, roles in metabolism, antioxidant
functions, electrolyte balance, and how various vitamins and minerals support
growth, immunity, bone health, blood formation, and energy metabolism.
QUESTIONS
1. Which vitamins are fat-soluble?
A. B and C
B. A, D, E, and K
C. B6 and B12
D. C and K
Answer: B
,2025 BIOD121 Essentials in Nutrition TEST
BANK EXAM MODULE 4
Explanation: Fat-soluble vitamins dissolve in fat, are stored in liver/fat
tissue, and can accumulate.
2. Which vitamins are water-soluble?
A. A, D, E, K
B. B-complex and C
C. Only B12
D. Only C
Answer: B
Explanation: Water-soluble vitamins are not stored significantly and excess
is excreted in urine.
3. The most stable fat-soluble antioxidant vitamin is:
A. Vitamin A
B. Vitamin D
C. Vitamin E
D. Vitamin K
Answer: C
Explanation: Vitamin E protects cell membranes from oxidative damage.
,2025 BIOD121 Essentials in Nutrition TEST
BANK EXAM MODULE 4
4. Which vitamin is easily destroyed by heat and light?
A. Vitamin C
B. Vitamin A
C. Vitamin D
D. Vitamin K
Answer: A
Explanation: Vitamin C is highly unstable and degrades during cooking.
5. Which vitamin is needed for normal vision?
A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin K
Answer: A
Explanation: Vitamin A is required for retinal function and low-light
vision.
6. Pernicious anemia is caused by deficiency of:
A. Vitamin C
B. Vitamin B12
, 2025 BIOD121 Essentials in Nutrition TEST
BANK EXAM MODULE 4
C. Vitamin D
D. Vitamin B6
Answer: B
Explanation: B12 deficiency affects RBC formation and nerve health.
7. Which vitamin helps with blood clotting?
A. C
B. D
C. K
D. A
Answer: C
Explanation: Vitamin K activates clotting proteins.
8. Scurvy is caused by lack of:
A. B1
B. Vitamin C
C. Vitamin D
D. Vitamin K
Answer: B
BANK EXAM MODULE 4
Description
Module 4 of BIOD121 focuses on vitamins and minerals—their functions,
sources, deficiency diseases, toxicity symptoms, absorption, storage, and
classification into water-soluble vs fat-soluble groups. This exam tests your
understanding of micronutrient biochemistry, roles in metabolism, antioxidant
functions, electrolyte balance, and how various vitamins and minerals support
growth, immunity, bone health, blood formation, and energy metabolism.
QUESTIONS
1. Which vitamins are fat-soluble?
A. B and C
B. A, D, E, and K
C. B6 and B12
D. C and K
Answer: B
,2025 BIOD121 Essentials in Nutrition TEST
BANK EXAM MODULE 4
Explanation: Fat-soluble vitamins dissolve in fat, are stored in liver/fat
tissue, and can accumulate.
2. Which vitamins are water-soluble?
A. A, D, E, K
B. B-complex and C
C. Only B12
D. Only C
Answer: B
Explanation: Water-soluble vitamins are not stored significantly and excess
is excreted in urine.
3. The most stable fat-soluble antioxidant vitamin is:
A. Vitamin A
B. Vitamin D
C. Vitamin E
D. Vitamin K
Answer: C
Explanation: Vitamin E protects cell membranes from oxidative damage.
,2025 BIOD121 Essentials in Nutrition TEST
BANK EXAM MODULE 4
4. Which vitamin is easily destroyed by heat and light?
A. Vitamin C
B. Vitamin A
C. Vitamin D
D. Vitamin K
Answer: A
Explanation: Vitamin C is highly unstable and degrades during cooking.
5. Which vitamin is needed for normal vision?
A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin K
Answer: A
Explanation: Vitamin A is required for retinal function and low-light
vision.
6. Pernicious anemia is caused by deficiency of:
A. Vitamin C
B. Vitamin B12
, 2025 BIOD121 Essentials in Nutrition TEST
BANK EXAM MODULE 4
C. Vitamin D
D. Vitamin B6
Answer: B
Explanation: B12 deficiency affects RBC formation and nerve health.
7. Which vitamin helps with blood clotting?
A. C
B. D
C. K
D. A
Answer: C
Explanation: Vitamin K activates clotting proteins.
8. Scurvy is caused by lack of:
A. B1
B. Vitamin C
C. Vitamin D
D. Vitamin K
Answer: B
