1.Why Do Bodybuilders Take Protein Shakes?
- Bodybuilders exercise to build and tone up their body muscles.
- Protein shakes are extra protein supplements rich in amino acids, which are the building blocks of body muscles.
- Examples of protein-rich food are meat, fish, and soya bean.
2.What Is Nutrition?
- The process by which we obtain nutrients and energy from food for body growth and development is called nutrition.
- The mode of nutrition is either autotrophic, like plants or heterotrophic, like animals.
3.What Is Anaemia, and How Can It Be Treated?
- Anaemia is a deficiency disease characterised by low levels of haemoglobin, a red pigment in our blood.
- Haemoglobin plays a vital role in the transport of oxygen in our body.
- To treat anaemia, we should intake foods rich in iron like liver, spinach, red meat, raw banana etc.
4.What Is an Essential Micronutrient?
- Vitamins and minerals are essential micronutrients.
- These nutrients are needed in small amounts but are essential to boost our body’s immunity.
- These are also called protective foods because they help us to fight against diseases.
- Examples: Vitamin A, Vitamin C, Iron, and Zinc.
5.What Is Glycogen?
- Glycogen is a carbohydrate.
- The building unit of glycogen is glucose. A large number of glucose molecules get linked together to form glycogen.
- The food we eat is used to produce energy. The extra food not utilised immediately for energy production gets stored in our body as glycogen to form a layer of fat.
- This food is used by the body to produce energy when required.
6.What Is Dehydration?
- Dehydration is the extreme loss of bodily fluids, affecting the body's essential functions.
- A few symptoms of dehydration are- feeling thirsty, excreting dark yellow coloured urine, and feeling lightheaded and tired.
- ORS helps to manage the loss of body fluids.
7.Why Is Calciferol Essential for the Body?
- Vitamin D is known as calciferol.
- This vitamin helps to absorb calcium from a variety of foods. Calcium helps calcify bones and makes our bones and teeth stronger.
- Foods like mushrooms, liver, eggs, and sea fish are rich in calciferol.
8.How Are Vitamins Categorised?
Vitamins can be categorised into two types:
Fat-soluble vitamins |
Water soluble vitamins |
1. These vitamins are soluble in fats like oil. |
1. These vitamins are soluble in water. |
2. These vitamins are stored in the liver. |
2. These vitamins are not stored as much as fat-soluble vitamins. |
3. Excess intake of these vitamins can cause vitamin toxicity and hypervitaminosis. |
3. These vitamins are metabolised very fast and rapidly excreted in the urine. |
Example-Vitamin A, D, E, K. |
Example-Vitamin B complex and vitamin C. |
9.What Is Scurvy, and How Can It Be Treated?
- Scurvy is a deficiency disease that is caused due to a lack of vitamin C.
- A few distinctive symptoms of scurvy are swollen and bleeding gums, teeth sometimes falling out, skin bruises and excessive joint pain, and feeling tired and restless.
- Scurvy can be treated with vitamin C supplements.
10.What Is the Meaning of Staple Food?
- he food that makes up a significant portion of our diet is called staple food.
- Rice and chapatti (wheat) are a staple food in our country.
11.How Can Starch Be Identified in a Food?
- Starch can be identified using an iodine solution.
- Iodine solution gives a blue-black colour in the presence of starch.
12.What Is Night Blindness, and How Can It Be Treated?
- Night blindness is a deficiency disease caused due to deficiency of vitamin A.
- It is characterised by excessive squinted and blurred vision at night.
- Vitamin A supplements can treat night blindness. This vitamin treats dry cornea and damaged retina and thus can improve vision.
- Some examples of food rich in Vitamin A are eggs, carrots and green leafy vegetables.
13.What Is Vitamin B Complex?
- The Vitamin B complex is a group of vitamins soluble in water.
- The Vitamin B complex is made up of eight types of vitamins, which are- vitamins B1, B2, B3, B5, B6, B7, B9, and B12.
- This group of vitamins helps in the metabolism of cells, regulation of appetite and digestion and maintaining cardiovascular health.
14.What Is Kwashiorkor?
- Kwashiorkor is a severe form of malnutrition caused due to deficiency of proteins in a child's body.
- The symptoms of kwashiorkor are- stunted growth and fluid retention in the body tissues.
15.Why Are Zinc Supplements Given to COVID Patients?
- Zinc is an essential micronutrient that helps in body growth, development and wound healing.
- Zinc supplements can cure respiratory infections that are similar to Covid-19.