Hi Everyone!! This article will share some Important Questions Of Components Of Food.
In my previous post, I have shared the Objective Type Questions Of Components Of Food that cover fill ups, true & false, match the columns, assertion and reasoning, etc. so, make sure to check that post as well.
Important Questions Of Components Of Food
Question 1: What do you mean by balanced diet?
Answer: The daily intake of food which contains all the necessary nutrients in the right quantities is called balanced diet.
Question 2: Why do growing children need protein-rich diet?
Answer: Children need protein-rich diet because during childhood, the bones and muscles are growing. This requires energy as well as material for body-building.
Question 3: When a person takes in more nutrients than the body requires, what happens to the excess amount of nutrients?
Answer: The excess nutrients are stored as fats in our body and increase the weight of the body.
Question 4: Babies and children should be exposed to morning sunlight. Give reason.
Answer: Babies and children should be exposed to morning sunlight since Vitamin D is made by the skin when the body is exposed to sunlight.
Question 5: Dietary fibres are essential for our body to function properly. Give reason.
Answer: Dietary fibres are essential for our body to function properly since they help to carry waste undigested material from the digestive system of the body.
Question 6: Design an activity to test given material for the presence of important component of food i.e. proteins, fats or carbogydrates and state conclusion.
Material – Peas
Answer:
Take small amount of peas and crush them to form a paste or powder.
Put this sample in a clean test tube.
Add 1 cc of 40% sodium hydroxide solution and cork the test tube. Shake it to mix the food.
Add 1% of diluted copper sulphate solution to the food solution. Cork and shake it again. Leave it undisturbed for 5 minutes.
Observe the colour change.
Conclusion – The solution turns violet. This indicates the presence of proteins in the sample.
Important Questions Of Components Of Food
Question 7: Archana eats all kinds of foods every day and includes all the nutrients in her diet except carbohydrates. Is she eating a balanced diet? What do you think will happen to her if she does not eat foods rich in carbohydrates? [HOTS]
Answer: No, she is not eating a balanced diet.
If she does not eat foods rich in carbohydrates, she will not get proper energy and will always feel tired.
Question 8: Answer the following questions in brief:
(a) How can you confirm the presence of iodine in a food sample?
Answer: Iodine in a food sample can be confirmed by adding starch to it and colour changing to blue-black.
(b) What do you mean by malnutrition?
Answer: Malnutrition is a condition that develops from eating a diet that either lack one or more major nutrients or have more of them.
(c) Name the diseases which can be prevented by giving protein-rich food.
Answer: Kwashiorkor, Marasmus
Question 9: Write the food items in which the following minerals are found:
(a) Iron
Answer: Green leafy vegetables, whole wheat, pulses, apples, raisins, fish, liver and meat, etc.
(b) Calcium
Answer: Milk, cheese, curds, ragi, leafy vegetables, shrimps, etc.
(c) Iodine
Answer: Fish, shellfish, edible marine algae, vegetables, fruits, Iodised salt, etc.
Question 10: Why is vitamin D called the Sunshine vitamin?
Answer: Vitamin D is made by the skin when the body is exposed to sunlight, hence it is also called as the Sunshine vitamin.
Question 11: Neha accidentally dropped ghee on the newspaper. After that, she observed that paper against light.
What will she observe?
What can you conclude from this activity?
Answer:
She will observe the translucent mark on the paper.
Ghee contains fats.
Question 12: Design an activity to test given material for the presence of carbohydrate.
Material – Sweet potato
Answer:
Take a small amount of sweat potato and crush them to form a paste.
Put this sample in a clean test tube.
Put 2-3 drops of iodine solution on the sample.
Observe the colour change.
If it turns blue-black, the material contains carbohydrates.
Conclusion – The material turns blue-black so, sweet potato contains carbohydrates.
Important Questions Of Components Of Food
Question 13: State the function of calcium and iron in our body.
Answer:
Calcium makes the bones and teeth strong.
Iron is needed by the body to make red blood cells (RBC).
Question 14: State the sources, uses and deficiency diseases of vitamin A, B and K.
Answer:
| Vitamins | Sources | Uses | Deficiency |
| A | Spinach, pumpkin, carrot, ripe mango, papaya, liver, eggs, fish, butter | Keeps eyes and skin healthy | Night blindness |
| B | Spinach, whole grain, nuts, gram, beans, peas, soyabean, seeds, milk, curd, meat, fish, eggs | i. Keeps muscles, brain and nerves healthy ii. Helps in making red blood cells | Anaemia |
| K | Green leafy vegetables, cabbage, soyabean, lettuce | Helps in clotting of blood | Bleeding |
Question 15: Assertion-Reason type questions:
In the following questions, the Assertion and Reason have been put forward. Read the statements carefully and choose the correct alternative from the following:
(A) Both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.
(B) Both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.
(C) Assertion is true but the Reason is false.
(D) Both Assertion and Reason are false.
(i) Assertion: Goitre is caused due to deficiency of iron.
Reason: Iron is essential for the formation of thyroxine hormone.
Answer: (D)
(ii) Assertion: Scurvy is caused due to the deficiency of vitamin C.
Reason: The disease sets in when the diet does not include fresh vegetables and fruits for a long time.
Answer: (A)
Question 16: Write a short note on the importance of water for the human body.
Answer:
i. Water is a major component of blood.
ii. It helps in the regulation of body temperature.
iii. It plays a vital role in the removal of waste material from the body.
iv. Water helps in the absorption of nutrients as well as the transport of substances inside our body.
v. It helps in the lubrication of joints and in the digestive process.
Important Questions Of Components Of Food
Question 17: Why are fats important for our body?
Answer: Fats in moderate quantities are essential to the body as they give the body energy and warmth.
Question 18: Write the symptoms of anaemia.
Answer:
i. The symptoms of anaemia include pale skin, flat and pale nails and dark patches below eyes.
ii. The person suffers from frequent headaches and looks tired. He becomes breathless and gets tired easily and therefore, cannot work efficiently.
iii. An anaemic student cannot concentrate so, leaning becomes a difficult task.
Question 19: We must ensure that we have a balanced diet. Give reasons.
Answer: A diet should contain all the major nutrients namely, carbohydrates, proteins, fats, vitamins, minerals, fibers and water in proper amounts. The daily intake of food which contains all the necessary nutrients in the right quantities is called a balanced diet. A balanced diet helps us keep our body healthy and fight against diseases.
Question 20: Think and answer:
(a) Sumit loves eating pastries and cakes. He eats only dal and rice, and avoids all kinds of vegetables in his daily meal. He feels tired all day long. What do you think is the reason for this? What do you suggest to him?
Answer: Fruits and vegetables are low in calories and rich in vitamins, minerals, and fibers which give disease-fighting ability to the body. Green vegetable mostly contains calcium, magnesium, iron, potassium, zinc and vitamins. Fruits contain mostly vitamins and minerals. While rice is a rich source of carbohydrates and dal is rich sources of protein they only provide energy and body-building materials to the body. Hence, for proper functioning, body needs vitamins and minerals.
(b) Your friend Nitibha is overweight and wants to lose weight. What change will you suggest to her in order to achieve this?
Answer: In order to lose weight Nitibha needs to have a balanced diet. She should avoid foods with high levels of fats and sugars. She should also regularly exercise.
Question 21: One day Rahul’s maid brought her 4-year-old son to Rahul’s house. He noticed that the boy’s legs were swollen and he was quite short for his age. He was also looking pale. Rahul gave him some milk and also requested the mother to give him milk and eggs daily.
(a) Which disease do you think the boy is suffering from?
Answer: The boy is suffering from Kwashiorkor.
(b) What values are displayed by Rahul?
Answer: Helpful, caring, kind, etc.
Question 22: What causes rickets? What are its symptoms and preventive measures?
Answer: Rickets is caused due to the deficiency of Vitamin D, calcium and phosphorous.
Symptoms –
Twisting and softening of bones
Bow legs
Knock knees
Pigeon chest
Preventive measures
Milk should be included in diet.
Exposure to sunlight
So, these were some Important Questions Of Components Of Food.