This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition & Digestion, Subject name: Biochemistry
Which of the following is not a micronutrient - 
Select and explain. 
A. Iodine, B. Chromium, C. Glucose, D. Iron
C: Glucose
Answer: C: Glucose 
Explanation: Ans. is 'c' i.e., Glucose o Nutrients are organic and inorganic complexes contained in food. There are two major types of nutrients : Micronutrients Micronutrients are nutrients needed throughout life in small quantities. They are dietary minerals needed by the human body in very small quantities. Micronutrients include : VitaminsQ: - A, B-compiex, C, D, E, K Microminerals (Trace elements)Q - required intake is less than 100 mg/day: # Boron # Chromium # Fluoride # IronQ # Molybdenum # ZincQ # Cobalt # CopperQ # IodineQ # MangneseQ # SeleniumQ Macrominerals - required >100 mg/day : # Calcium # Phosphorus # SodiumQ # Sulfur # Magnesium # Potassium # Chloride Macronutrients (Proximate principals) These are the nutrients which are consumed in large quantities. They provide bulk energy. Macronutrients are: i) Proteins, ii) Fats & iii) Carbohydrate.