Multiple Choice
In the context of biomolecules and mixtures, what type of mixture is chicken noodle soup?
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4. Biomolecules
Introduction to Biomolecules
Multiple Choice
Which of the following vitamins aids in the absorption of the mineral iron?
A
Vitamin C (ascorbic acid)
B
Vitamin K
C
Vitamin B12
D
Vitamin D
Verified step by step guidance1
Understand the role of vitamins in nutrient absorption: Vitamins can enhance the absorption of certain minerals in the body. For example, Vitamin C is known to aid in the absorption of iron.
Recall the specific function of Vitamin C (ascorbic acid): Vitamin C helps convert iron from its ferric form (Fe³⁺) to its ferrous form (Fe²⁺), which is more easily absorbed by the intestinal lining.
Review the functions of the other vitamins listed: Vitamin K is primarily involved in blood clotting, Vitamin B12 is essential for red blood cell formation and neurological function, and Vitamin D aids in calcium and phosphorus absorption.
Compare the functions of these vitamins to the absorption of iron: Only Vitamin C has a direct role in enhancing iron absorption, while the other vitamins serve different physiological purposes.
Conclude that Vitamin C (ascorbic acid) is the correct answer based on its specific role in iron absorption.
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