Question

Among the given nutrients milk is poor in source of:
(A) Calcium
(B) Vitamin C
(c) Protein
(D) Carbon

Answer 1

Milk is a liquid food produced in the mammary gland of mammals. In order to understand and answer this question, it is important to be aware of components present in milk and the primary function of milk.

Complete step by step answer:
Mammals are vertebrate animals which nourish their young ones by feeding milk. Milk is a nutrient rich liquid food produced in the mammary gland of mammals. The main component that milk contains is nutrition and its primary function is providing nutrition to enhance the growth in whole. Milk contains nutrients such as calcium, protein and carbohydrates.
The function of each nutrients in the human body are as follows:
-Calcium is a very important component for fortification of bones that is just like adding a defensive wall for bones.
-Protein helps in building tissues, strengthening of muscle etc.
-Carbohydrate is the main source of energy.

Option A is calcium. Calcium is found in milk as calcium hydrogen phosphate $(CaHP{O_4})$. As we discussed above the function of calcium in the human body or any mammals is to fortify bone. Thus, milk contains calcium.
Option B is vitamin C. Milk contains soluble vitamins like thiamin (vitamin B1), riboflavin (vitamin B2), Niacin (Vitamin B3), pantothenic (vitamin B5), pyridoxine (vitamin B6), and vitamin C. But all the vitamins mentioned above are present in small constituents. Thus milk contains vitamin C but in small amounts.
Option C is protein. From the above discussion we know milk contains the protein. The protein content is rich in milk.
Option D is carbon. Carbon is present in milk as fatty acids. Milk is rich in fatty acids. Fatty acids such as lactic acid are one of the main sources in milk.
So, the correct answer is “Option B”.

Note: Firstly, we should be clear that Vitamin C is present in very small amounts and it is an important component for tissue building. From the above discussion, we know that protein is also a very important component of building tissue. Here this function of building tissue is due to the presence of protein as milk is rich in protein.