Which of the following is a type of micronutrient that regulates chemical reactions in the body?

• A. Proteins
• B. Vitamins
• C. Carbohydrates
• D. Lipids

Answer: (B)

Verified step by step guidance

1. Step 1: Understand the term 'micronutrient'. Micronutrients are nutrients required by the body in small amounts to support various physiological functions, including the regulation of chemical reactions. They include vitamins and minerals.
2. Step 2: Analyze the options provided. Proteins, carbohydrates, and lipids are macronutrients, which are required in larger amounts and primarily provide energy or structural components to the body.
3. Step 3: Focus on vitamins. Vitamins are a type of micronutrient that play a crucial role in regulating chemical reactions in the body, such as acting as coenzymes in metabolic pathways.
4. Step 4: Eliminate incorrect options. Proteins, carbohydrates, and lipids do not primarily function as regulators of chemical reactions; they serve other roles such as energy storage, structural support, and enzymatic activity.
5. Step 5: Conclude that vitamins are the correct answer, as they are essential micronutrients involved in the regulation of chemical reactions in the body.