Question

Which statement best defines micronutrients?
Micronutrients can be synthesized only by microbial organisms.
Micronutrients are required by the body in small quantities.
Micronutrients are essential only for infants and children.
Micronutrients are naturally made by the body.

Answer 1

The correct answer is 2 
Micronutrients, including vitamins (A,B group,C,D,E) and different minerals, are needed for the metabolism of the body in small quantities, unlike the macronutrients like sugars, fats, proteins etc. which the body needs in large quantities 

Answer 2

Answer: Option B  

Explanation:  

The micro nutrients can be defined as the nutrient that is required by the body in trace amount. They are required relatively in smaller amounts.

They are vitamins and minerals and for a good health our body requires it in micro gram and milligram. They are required to perform the vital function of the body.  

Minerals and vitamins are required for the growth and development of bones, teeth and electrolyte balance of the body.

Example: We might take 200 grams of carbohydrate (macro nutrient) but we will have only 18 mg of iron (micro nutrient) for the body