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Multiple Choice
Which of the following is an organic micronutrient that regulates certain processes in the body?
A
Sodium chloride (NaCl)
B
Vitamin C (ascorbic acid)
C
Iron (Fe)
D
Calcium ion (Ca^{2+})
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Verified step by step guidance
1
Step 1: Understand the term 'organic micronutrient.' Organic micronutrients are small molecules containing carbon that are essential for the body in small amounts and regulate various biological processes. Examples include vitamins.
Step 2: Analyze the options provided. Sodium chloride (NaCl), iron (Fe), and calcium ion (Ca^{2+}) are inorganic substances, as they do not contain carbon and are classified as minerals.
Step 3: Recognize that Vitamin C (ascorbic acid) is an organic compound because it contains carbon atoms and is a micronutrient essential for processes like collagen synthesis and antioxidant activity.
Step 4: Compare the properties of Vitamin C with the other options. Sodium chloride, iron, and calcium ions are involved in physiological functions but do not meet the criteria of being organic micronutrients.
Step 5: Conclude that the correct answer is Vitamin C (ascorbic acid), as it is the only organic micronutrient listed that regulates certain processes in the body.