Examples of micronutrients include the following except

1. Analyze the question You are asked to pick the one item that is not a micronutrient. This is an "except" question, so three options are micronutrients and one is not.

2. Explain the concept

• Micronutrients are nutrients the body needs in very small amounts (milligrams or micrograms). They include vitamins and minerals/trace elements such as iron, iodine, zinc and fluoride.
• Macronutrients are needed in large amounts. They are carbohydrates, proteins and fats (lipids). Water and some minerals needed in bulk (such as calcium) are also often grouped with them.
• Carbon is the basic element that makes up all organic compounds (carbohydrates, proteins, fats). It is a major building block of macronutrients, and the body gets it through those large food classes, not as a trace nutrient.

3. Step-by-step solution

• A. Vitamin A is a vitamin, so it is a micronutrient. It helps with vision and healthy skin.
• B. Vitamin B6 is a vitamin, so it is a micronutrient. It helps in protein metabolism.
• C. Biotin is a B-complex vitamin (vitamin B7), so it is a micronutrient.
• D. Carbon is a bulk element in organic food molecules, not a micronutrient.

4. Answer The correct option is D. carbon.

5. Tip For "micronutrient except..." questions, remember: micro = vitamins + trace minerals, and macro = carbs, proteins, fats. If an option is a bulk element or a major food class, it is probably the odd one out.