Answer in a word
Short Answers 1
Short Answers 2
Long answers 1
Long Answers 2
100
Name some food items which provide roughage.
Ans: Whole grains, fresh fruits and vegetables are the main sources of roughage.
100
Why should a meal have different food items?
A meal should have different food items because our body needs different kinds of nutrients for proper functioning.
100
Name the food nutrient indicated by an oily patch on paper.
An oily patch on paper shows the presence of fat.
100
What are nutrients? Name major nutrients.
Ans: The components of food which are needed by our body for growth and development are called nutrients. The major nutrients are:
(i) Carbohydrates
(ii) Fats
(iii) Proteins
(iv) Vitamins
(v) Minerals
100
What are fats? Name some fat-containing substances.
Ans: The energy rich sources of food are called fats. They provide energy to the body. All types of nuts, mustard seeds, milk and butter are the major sources of fat.
200
Tick (/) the statements that are correct, cross (X) those which dire incorrect.
(a) By eating rice alone, we can fulfill nutritional requirement of our body,
(b) Deficiency diseases can be prevented by eating a balanced diet.
(c) Balanced diet for the body should contain a variety of food items.
(d) Meat alone is sufficient to provide all nutrients to the body.
200
Name two main types of carbohydrates found in our food.
(i) Starch (ii) Sugar
200
Name two plant food items which provide proteins.
Name two sources of proteins provided by animals.
(i) Dal (pulses)
(ii) Soyabean
i) Milk
(ii) Eggs
200
Write test for detecting the presence of starch.
Ans: Take a piece of the food item. Put 2-3 drops of dilute iodine solution on it. If the colour of the food item becomes blue-black, then it indicates the presence of starch in the food item.
200
People who eat sea-food do not suffer from Goitre. Explain.
Ans: It is so because sea-food is a rich source of Iodine and Goitre is a deficiency disease caused due to lack of Iodine.
300
Name the following:
(a) The nutrients which mainly give energy to our body.
(b) The nutrients that are needed for the growth and maintenance of our body.
(c) A vitamin required for maintaining good eyesight.
(d) A mineral that is required for keeping our bones healthy.
a) Carbohydrates
(b) Proteins
(c) Vitamin A
(d) Calcium
300
What are carbohydrates?
The compounds of carbon, hydrogen and oxygen which provide energy for our body are called carbohydrates.
300
Which type of food is called body-building food?
Name two food items which provide fats.
The food containing proteins is called body-building food.
i) Oils
(ii) Ghee
300
What are the functions of proteins?
Ans: Proteins are the most important nutrient. They are called body-building food. They help in the growth and repair of damaged cells and tissues of the body. They also help our body to fight against infections. Proteins make our nails, hair and muscles.
300
What is obesity?
Ans: When a person eats too much fat-containing foods, then the fat gets deposited in his body and he may end up suffering from a condition called obesity.
400
Name two foods each rich in:
(a) Fats
(b) Starch
(c) Dietary fibre
(d) Protein
(a) Ghee, butter,
(b) Raw potato, rice,
(c) Spinach, cabbage, carrot, ladies finger, (any two)
(d) Milk, egg, fish, meat, pulses (any two).
400
What happens when two or more drops of iodine solution fall on starch substance?
The colour of the substance becomes blue-black.
400
Name a vitamin which represents a group of vitamins.
Write two sources of Vitamin C.
Vitamin B-complex.
(i) Orange/lime
(ii) Amla
400
How can you test presence of proteins in a given food item?
Ans:Take a small quantity of the food item. If the sample is solid, grind it. Put some part of this in a clean test tube, add 10 drops of water to it and shake the test tube. Now, with the help of a dropper, add two drops of solution of copper sulphate and 10 drops of solution of caustic soda to the test tube. Shake well and place the test tube in test tube stand for a few minutes.
Observe colour of the contents of test tube. If colour of the contents turns violet, the food item contains protein.
400
What are deficiency diseases?
Ans: When a person eats such a food continuously for a long time which may not contain a particular nutrient, then this condition is called deficiency of that nutrient. Deficiency of one or more nutrients can cause diseases or disorders in our body. Such type of diseases are known as deficiency diseases.
500
(a) ________ is caused by deficiency of Vitamin D. ,
(b) Deficiency of_________ causes a disease known as beri-beri.
(c) Deficiency of Vitamin C causes a disease known as________________ .
(d) Night blindness is caused due to deficiency of_______________ in our food.
(a) Rickets
(b) Vitamin B1
(c) Scurvy
(d) Vitamin A
500
Name two nutrients which protect the body from diseases.
(i) Vitamins
(ii) Minerals
500
What is roughage?
What is the main Function of roughage?
Ans. The food containing plant fibres is called roughage.
The main function of roughage is to help our body get rid of undigested food.
500
Write the functions of water in our body.
Ans: Water helps our body to absorb nutrients from the food. It also helps in removing the waste from the body in the form of urine and sweat. We get water from various types of liquids, fruits and vegetables.
500
List various types of nutrients and write the functions of each.
Ans. The various types of nutrients are:
(i) Carbohydrates: They are mainly energy-providing nutrients.
(ii) Fats: They provide energy for the body. They give much more energy than carbohydrates if consumed in same amount.
(iii) Proteins: They are called body-building foods. Proteins help in the formation and repairing of body parts. Skin, hair, muscles, enzymes are made up of proteins.
(iv) Vitamins: Vitamins help in protecting our body against disease. They also protect eyes, bones, teeth and gums.
(v) Minerals: Minerals are essential for proper growth of body and to maintain good health.