DAV Class 4 Science Solution Chapter 7 Food
DAV School Books Class 4 Science Solution Chapter 7 Food all Question Answer. DAV Class 4 7th Chapter Food full Chapter explanation by expert teacher.
DAV School Books Class 4 Science Solution Chapter 7 Food:
A.)
1.) Energy
2.) Proteins
3.) Orange and Lemon
4.) Minerals
5.) Undigested food
B.)
1.) True
2.) True
3.) False
4.) False
5.) False
C.)1
1.) a ( minerals )
2.) c ( health )
3.) c ( proteins )
4.) d ( fats )
5.) a ( A )
D.)
1.) Name of the nutrients present in every giving foods are carbohydrates and fats.
2.) Proteins help our body to grow and repair the worn-out tissues.
3.) Eggs and fish are the good sources of proteins obtained from animals.
4.) Calcium is required for healthy bones and teeth. Milk is the food that contents both of them.
5.) Vitamins and minerals are the nutrients which protect our body from diseases and keep us healthy. So food stuff containing vitamins and minerals are called productive foods.
E.)
1.) Carbohydrates and fats are the nutrients.
Our body needs energy to do all types of work in our daily life. Carbohydrates and fats are the nutrients that provide energy to our body and thereby help it perform various functions. This is why they are necessary for our body.
2.) We should it balanced diet because different nutrients perform different functions in our body and help us to stay healthy. Absence of any one of the nutrients may cause a disease. All nutrients are not available in any one food item. Particular nutrient then remains missing from the diet can affect the growth and proper functions of human body. We should always take a diet which contains all the nutrients in appropriate amounts. It should also contain a good amount of roughage and water.
3.) There are many types of vitamins needed to our body. Vitamin A , Vitamin B, Vitamin C, Vitamin D are the main types of vitamins that help us to stay healthy which we get from the food items like whole fruits, salads and whole grains. As well roughage is the fiber present in the food we get it mainly fruits, vegetables and whole grain that helps our body tom get rid of undigested food.So it is advisable to eat these food.
4.) Water is essential for our body to function properly. Water helps in digesti0on of food and absorption of nutrients in our body. It also helps in throwing out wastes from the body. We should drink at least eight to ten glasses of water everyday.
5.) Different nutrients perform different function in our body and help us to stay healthy. Absence of any one of the nutrients may cause a disease. All nutrients are not available in any one food item. For example, sugar contains carbohydrates but does not contain fats, proteins or minerals. Fruits and vegetables and minerals but lack proteins and fats. Sometimes are in the habit of avoiding some food items. Over the years a particular nutrient then remain missing from their diet can affect their growth and proper functioning of the body. A diet which contains all the nutrients, roughage and water in right amount is very important. People need different amount of nutrients according to their age and the work the do.
For growing children it is very important to have a diet that contains more of proteins , carbohydrates and fats and old people who are not very active need less energy. So they need less of carbohydrates and fats.
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