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Multiple Choice
Which of the following functional groups is most effective at enhancing iron absorption in a vegetarian diet?
A
Carboxylic acid
B
Aldehyde
C
Vitamin C (ascorbic acid)
D
Phenol
Verified step by step guidance
1
Identify the role of each functional group in enhancing iron absorption. Consider how these groups interact with iron ions.
Understand that Vitamin C (ascorbic acid) is known to enhance iron absorption by reducing ferric iron (Fe³⁺) to ferrous iron (Fe²⁺), which is more soluble and easily absorbed in the intestine.
Evaluate the chemical properties of each functional group: Carboxylic acids can donate protons, aldehydes can act as reducing agents, and phenols have weak acidic properties.
Consider the reducing ability of each functional group. Ascorbic acid is a strong reducing agent, which is crucial for converting Fe³⁺ to Fe²⁺.
Conclude that among the given options, ascorbic acid (Vitamin C) is the most effective at enhancing iron absorption due to its strong reducing properties, which facilitate the conversion of iron to a more absorbable form.