Nutrition and Food Sources

This is the correct option. Under-nourishment, combined with over-nutrition and the food lacking in some nutrient, are the reasons due to which imbalances in food happen.

This is the correct option. Potato is a food rich in carbohydrates. Carbohydrates are the common energy giving compounds.

Reason: Concentrates are the foods which are low in fibre and contain high levels of proteins and other nutrients like carbohydrates and minerals. In general, animal feed includes: (a) roughage which is largely fibre, and (b) concentrates which are low in fibre and contain relatively high levels of proteins and other nutrients. Cattle need balanced rations containing all nutrients in proportionate amounts. Micronutrients are also needed for growth and they promote the health and milk output of dairy animals. Micronutrients are the nutrients needed in small quantities. These include dietary minerals needed by the body e.g. iron, cobalt, chromium etc. while macronutrients are required in large quantities e.g. carbohydrates, proteins and fats. Carbohydrates, proteins, and fats supply 90% of the dry weight of the diet and 100% of its energy. 

Reason: Roughage includes fibrous food. Roughage is the indigestible portion of foods. It has many functions in the animal body. For e.g. it adds bulk to the stool. It also speeds the passage of foods through the digestive system. Roughage does not provide any energy to the body. So, it is not nutritious. Therefore; option (A) is not the answer. Animal feed includes: (a) roughage which is largely fibre, and (b) concentrates which are low in fibre and contain relatively high levels of proteins and other nutrients.Therefore, (C) and (D) form the part of concentrates and not fibres. 

Much of their diet consisted of animals fats. This provide great numbers of calories to keep their bodies warm. Dairy products were essentially non-existent for them, and vegetable foods were very scarce in their arctic environment.

This is the correct answer. P and Q both are water soluble dietary fibers.

Fish is an excellent source of high-quality complete protein, containing all essential amino acids in optimal proportions. Fish typically provides 20-25g of protein per 100g serving. Potatoes are primarily carbohydrates, butter is mainly fat with minimal protein, and bananas are carbohydrate-rich with only about 1g protein per 100g.

Butter is a rich source of fat, and sugars are carbohydrates. A fat molecule has more carbon-hydrogen bonds than a sugar molecule. Thus, a large amount of energy can be obtained by the breakdown of fat molecules as compare to the same amount of carbohydrates.

All of the above are good sources of iron and good for iron deficient persons and anaemic patient.

This is a right answer. Porridge is roughage rich food as it is made up of whole grain (wheat), and it is also a energy giving food because it is made of wheat, which is rich in carbohydrates.

This is a right answer. Vitamin C is not an essential part of our food, but it develops strong immunity to fight against diseases. All citrus fruits like lemon, oranges, sweet lime are rich in Vitamin C.

This is a right answer. Both tomato and coconut are fruits that we eat.

This statement is incorrect. Boiling, drying, salting, sweetening, freezing and canning are different ways of preserving the food not the ways of cooking food.