NUTRITION 221 CS EXAM 2 | QUESTIONS AND ANSWERS | LATEST 2026/27

NUTRITION 221 CS EXAM 2 | QUESTIONS AND
ANSWERS | LATEST 2026/27



1. Which factors are known to influence calcium balance in the human body?
e. e. e. e. e. e. e. e. e. e. e.




e . Hormonal regulation and water intake.e. e. e. e.




e . Physical activity levels and trace minerals.
e. e. e. e. e.




e . Dietary intake, hormonal regulation, and physical activity levels.
e. e. e. e. e. e. e.




e . Only dietary intake and hormonal regulation.
e. e. e. e. e.




2. What are the primary functions of Vitamin A in the human body?
e. e. e. e. e. e. e. e. e. e. e.




e. Blood clotting and nerve function
e. e. e. e.




e. e . Energy metabolism and e. e.




e. digestion

e . Vision, immune function, and skin health
e. e. e. e. e.




e . Bone health and muscle growth
e. e. e. e.




3. Describe the relationship between Vitamin C deficiency and its symptoms.
e. e. e. e. e. e. e. e. e.




e. Vitamin C is only important for immune function, not for collagen
e. e. e. e. e. e. e. e. e. e.



e. synthesis.

e. Deficiency in Vitamin C results in increased energy levels
e. e. e. e. e. e. e. e.



e. and improved exercise performance.
e. e. e.




e . Vitamin C deficiency causes hair loss and skin rashes.
e. e. e. e. e. e. e. e.




e. A deficiency in Vitamin C can lead to scurvy, which is
e. e. e. e. e. e. e. e. e. e.



e. characterized by symptoms such as bleeding gums and fatigue.
e. e. e. e. e. e. e. e.

,4. Vitamin A functions
e. e.




e . Grains, meat, and legumes
e. e. e.

, e . Maintains epithelial tissue and produces visual pigments
e. e. e. e. e. e.




e . Helps enzymes in the citric acid cycle
e. e. e. e. e. e.




Night blindness, dry eye possibly leading to blindness, and flaking
e . e. e. e. e. e. e. e. e. e.


e. skin

5. If a patient presents with night blindness and frequent infections, which
e. e. e. e. e. e. e. e. e. e.



vitamin deficiency might be suspected, and what dietary sources could be
e. e. e. e. e. e. e. e. e. e.



recommended?
e.




e . Vitamin D deficiency; recommend foods like fatty fish and fortified
e. e. e. e. e. e. e. e. e.



e.milk.

e . Vitamin C deficiency; recommend foods like oranges and
e. e. e. e. e. e. e.



e. strawberries.

e . Vitamin B12 deficiency; recommend foods like eggs and
e. e. e. e. e. e. e.



e. dairy products. e.




e . Vitamin A deficiency; recommend foods like carrots,
e. e. e. e. e. e.



e.sweet potatoes, and spinach.
e. e. e.




6. Which vitamins are classified as fat-soluble?
e. e. e. e. e.




e. Vitamins A, D, E, and e. e. e. e.




K
e. e. e. Vitamins E, K, and e. e. e.




B12
e. e. e. Vitamins A, B, C, e. e. e.




and D
e. e. e. e. Vitamins B e.




and C
e. e.




7. Describe the consequences of Vitamin A deficiency in the human body.
e. e. e. e. e. e. e. e. e. e.




e . Deficiencies can cause excessive bleeding and muscle e. e. e. e. e. e.




cramps.
e. e. Deficiencies can result in hair loss and skin rashes.
e. e. e. e. e. e. e. e. e.