Class 6 Science Chapter 1 MCQ

Carbohydrates found in our food are in the form of starch and sugars.

Fast food like potato chips, pizza, burger, etc. are very good in taste and they contain huge amount of Fat. And fried food like samosa and poori, malai, rabdi and peda also contains fat.

Generally, as a deficiency disease “Vitamin-A” creates – loss of vision or poor vision, loss of vision in darkness (night), sometimes complete loss of vision.

If some thought that fats contains food would be the best foods to eat, all the time. It can be very harmful for everybody because to eat too much of fat rich foods, we may end up suffering from condition called obesity.

Deficiency diseases can be prevented by taking “Balance diet” while taking a particular nutrient type of food can creates deficiency diseases. Variety of foods are the different sources of nutrients.

Deficiency disease is a disease which arises due to the lack of nutrients in our diet over a long period of time, e.g. Scurvy, Kwashiorkor. To prevent these diseases, it is essential to have a balance diet. It is a diet, which contains adequate amounts of all the nutrients as well as sufficient quantity of water and roughage.

Vitamin-C, gets easily destroyed by heat during cooking. At the same time, cooking also results in the loss of certain nutrients.

A deficiency disease “goiter” which is caused due to the lack of iodine in our body. The symptoms are swollen glands in neck and mental disability found in adult as well as children.

Iodine is used to test the presence of starch in the food while copper sulphate solution and caustic soda solution are used to test the presence of protein.

A deficiency disease “rickets” which is caused due to the lack of “vitamin-D” in our body. In this case, bones become soft and bent, unable to stand and walk and body appears very thin.

Roughage and water are the components of food that do not provide any nutrients to our body but they are essential to us.

Proteins are needed for the growth and repair of our body. Carbohydrates and fats mainly provide energy to our body. Vitamins help in protecting our body against diseases and also help in keeping our eyes, bones, teeth and gums healthy.

There are some components which contain some ingredients (e.g. carbohydrates, proteins, fats, vitamins and minerals) that are needed by our body. These components are called nutrients. Roughage does not provide any nutrient to our body, it helps our body get rid of undigested food. Vitamin helps in protecting against diseases and minerals assist in proper functioning, normal growth and good health.

Egg is a rich source of protein, the mineral as calcium and vitamin-D, vitamin-B12. But egg yolk is rich in “fat” and egg albumin is rich in “protein”.

Vitamin C is not present in milk. It is present in citrus fruits such as oranges and green vegetables.

Dietary fibres are not present in milk while whole grains, whole pulses, fruits and vegetables are the sources of dietary fibre.

A deficiency disease Scurvy which is caused due to the lack of “vitamin-C” in our body. In this case, wounds take longer time to heal and bleeding can be seen in gums.

Fast food like potato chips, pizza, burger, etc. are very good in taste and they contain huge amount of Fat. And fried food like samosa and poori, malai, rabdi and peda also contains fat.

Carbohydrates and fats mainly provide energy to our body. Therefore, fats and carbohydrates are called Energy Giving Foods. Whereas, the vitamins help in protecting our body against diseases. Proteins are needed for the growth and repair of our body. Therefore, they are often called Body Building Foods.

The presence of proteins in a food material is tested on the basis of a reaction between proteins and alkaline solution of copper sulphate, that gives a violet colour. The test involves the following steps in sequences: II, I, IV, III.

A deficiency disease “Kwashiorkor” which is caused due to the lack of “protein” in our body. In this case, children leads to stunt growth, discoloration of hair, patchy skin, thinning of legs or swollen stomach, may affect functioning of brain.

The Vitamin-C rich fruit is great for our immunity, heart, skin and hair. Amla or the Indian gooseberry is a fruit which is popular for its many health benefits.

“Vitamins” help in protecting against diseases and “Minerals” assist in proper functioning normal growth and good health. Therefore, they are referred as protective foods.

Fast food like potato chips, pizza, burger, etc. are very good in taste and they contain huge amount of Fat. And fried food like samosa and poori, malai, rabdi and peda also contains fat.

“Vitamins” help in protecting against many diseases. These are also necessary for good eyesight (vitamin-A), growth (Vitamin-B1), keeping teeth gums and joints healthy (Vitamin-C) and the normal growth of bones and teeth (Vitamin-D)