Question 1

Pick the odd one out and give reasons:
(i) Jowar, Bajra, Ragi, Chana
(ii) Kidney beans, Green gram, Soya bean, Rice

Accepted Answer

Answer:
(i) Odd one out: Chana
Reason: Jowar, Bajra, and Ragi are millets (cereals), whereas Chana is a pulse (legume).
(ii) Odd one out: Rice
Reason: Kidney beans, Green gram, and Soya bean are pulses (legumes), whereas Rice is a cereal. — The odd one out is identified based on the category of the food item. Millets are cereals, pulses are legumes. Chana is a pulse among millets, and Rice is a cereal among pulses.

Question 2

Discuss traditional versus modern culinary practices in India.

Accepted Answer

Answer:
Traditional culinary practices in India involve cooking methods like boiling, steaming, roasting, and slow cooking using wood or cow dung cakes as fuel. These methods preserve nutrients and use locally available ingredients.
Modern culinary practices often involve the use of gas or electric stoves, microwaves, and processed foods. These methods are faster but may lead to loss of nutrients and increased use of preservatives and additives.
Discussion should include differences in fuel, cooking time, preservation of nutrients, and impact on health. — Traditional methods focus on natural ingredients and slow cooking preserving nutrients, while modern methods prioritize convenience and speed but may compromise nutritional quality.

Question 3

A teacher says that good food may act as medicine. Ravi is curious about this statement and has some questions for his teacher. List at least two questions that he can ask.

Accepted Answer

Possible questions Ravi can ask:
1. How can food act as medicine?
2. Which foods help in preventing diseases?
3. Can eating certain foods cure illnesses?
4. What nutrients in food help in healing the body?
These questions help understand the medicinal value of nutritious food. — The questions are aimed at understanding the relationship between nutrition and health, and how food can prevent or cure diseases.

Question 4

Not all delicious foods are necessarily healthy, while not all nutritious foods are always enjoyable. Share your thoughts along with a few examples.

Accepted Answer

Answer:
Delicious foods often contain high sugar, fats, and salt which may not be healthy (e.g., cakes, chips, candies).
Nutritious foods like leafy vegetables, fruits, and millets may not always be tasty to everyone but are essential for health.
Example: Spinach is nutritious but may not be liked by all; chocolates are delicious but not very healthy.
Hence, balance is important between taste and nutrition. — The answer explains the difference between taste and nutritional value with examples, emphasizing the importance of healthy eating habits.

Question 5

Medu does not eat vegetables but enjoys biscuits, noodles and white bread. He often has stomach ache and constipation. What changes should he make in his diet to get rid of these problems? Explain your answer.

Accepted Answer

Answer:
Medu should include more dietary fibre in his diet by eating vegetables, fruits, whole grains, and pulses.
Biscuits, noodles, and white bread are low in fibre and high in refined carbohydrates, which cause constipation.
Increasing fibre intake helps in digestion and prevents stomach ache and constipation.
He should also drink plenty of water and reduce junk food consumption. — Dietary fibre aids bowel movement and digestion. Lack of fibre causes constipation and stomach problems. Including fibre-rich foods and water improves health.

Question 6

Reshma had trouble seeing things in dim light. The doctor tested her eyesight and prescribed a particular vitamin supplement. He also advised her to include a few food items in her diet.
(i) Which deficiency disease is she suffering from?
(ii) Which food component may be lacking in her diet?
(iii) Suggest some food items that she should include in her diet to overcome this problem (any four).

Accepted Answer

Answer:
(i) Reshma is suffering from Night Blindness.
(ii) Vitamin A deficiency is causing this problem.
(iii) Food items rich in Vitamin A that she should include are:
- Carrots
- Spinach
- Mangoes
- Sweet potatoes
These foods help improve eyesight and overcome Vitamin A deficiency. — Night blindness is caused by lack of Vitamin A. Including Vitamin A rich foods restores eyesight and prevents deficiency diseases.

Question 7

You are provided the following:
(i) Canned fruit juice
(ii) Fresh fruit juice
(iii) Fresh fruit
Which one would you prefer and why?

Accepted Answer

Answer:
I would prefer fresh fruit (iii) because it contains natural nutrients, dietary fibre, and no added preservatives or sugars.
Fresh fruit juice (ii) is also good but may lose some fibre during juicing.
Canned fruit juice (i) often contains added sugar and preservatives and may have reduced nutritional value.
Hence, fresh fruit is the healthiest choice. — Fresh fruits retain all nutrients and fibre, making them healthier than processed juices which may have additives and less fibre.

Question 8

Gourav got a fracture in his leg. His doctor aligned the bones and put on a plaster. The doctor also gave him calcium tablets. On the second visit, the doctor gave him Vitamin D syrup along with calcium tablets. Refer to Fig. 3.5 and answer the following questions:
(i) Why did the doctor give calcium tablets to Gourav?
(ii) On the second visit, why did the doctor give Vitamin D syrup along with calcium tablets?
(iii) What question arises in your mind about the choices made by the doctor in giving the medicines?

Accepted Answer

Answer:
(i) Calcium tablets were given to help in the formation and strengthening of bones as calcium is a major component of bones.
(ii) Vitamin D syrup was given because Vitamin D helps the body absorb calcium effectively.
(iii) Question: Why was Vitamin D not given initially along with calcium? Should both be given together from the start for better healing?
This question arises because Vitamin D is essential for calcium absorption. — Calcium is needed for bone repair, and Vitamin D facilitates calcium absorption. Both are important for healing fractures.

Question 9

Sugar is an example of carbohydrates. Sugar is tested with iodine solution but it does not change to blue-black colour. What can be a possible reason?

Accepted Answer

Answer:
Iodine solution tests for the presence of starch, which turns blue-black on reaction.
Sugar is a carbohydrate but not starch; it is a simple sugar (glucose or sucrose).
Hence, sugar does not react with iodine solution to give blue-black colour. — Iodine test is specific for starch. Since sugar is not starch, it does not give the blue-black colour with iodine.

Question 10

What do you think of Raman's statement, "All starches are carbohydrates but not all carbohydrates are starches." Describe the design of an activity to test your answer.

Accepted Answer

Answer:
Raman's statement is correct because starch is a type of carbohydrate, but carbohydrates also include sugars and fibres.
Activity to test:
- Take samples of starch (e.g., rice, potato) and sugar (e.g., sugar crystals).
- Add iodine solution to each sample.
- Starch samples will turn blue-black, sugar samples will not.
This shows starch is a carbohydrate but not all carbohydrates are starch.
Hence, the statement is true. — The iodine test differentiates starch from other carbohydrates, proving the statement by observation.

Question 11

While using iodine in the laboratory, a few drops of iodine fell on Mishti's socks and a few fell on her teacher's saree. The drops of iodine on the saree turned blue-black while the colour on the socks did not change. What can be a possible reason?

Accepted Answer

Answer:
The saree likely contained starch (e.g., cotton or starch-treated fabric), which reacts with iodine to give blue-black colour.
The socks may be made of synthetic material or wool which does not contain starch, so no colour change occurred.
Hence, the difference is due to the presence or absence of starch in the materials. — Iodine reacts with starch to produce blue-black colour. Materials without starch do not show this reaction.

Question 12

Why are millets considered a healthy choice of food? Can eating just millets suffice for the nutritional requirements of the body? Discuss.

Accepted Answer

Answer:
Millets are considered healthy because they are rich in nutrients like carbohydrates, proteins, vitamins, minerals, and dietary fibre.
They are also easily digestible and can be grown in diverse climatic conditions.
However, eating only millets cannot fulfill all nutritional requirements as the body also needs other nutrients like fats, certain vitamins, and minerals from varied food sources.
A balanced diet including millets along with vegetables, fruits, and proteins is necessary. — Millets provide many nutrients but a variety of foods is needed for complete nutrition. Balanced diet is essential for health.

Question 13

You are given a sample of a solution. How would you check the possibility of it being an iodine solution?

Accepted Answer

Answer:
To check if a solution is iodine solution, add a few drops to a starch-containing substance like boiled potato or bread.
If the solution turns blue-black on contact, it confirms the presence of iodine.
Alternatively, the solution has a characteristic brownish colour and smell of iodine. — Iodine reacts with starch to give blue-black colour, which is a simple test to identify iodine solution.

Question 14

What does the Sanskrit saying 'annena jātāni jīvanti' mean?

Accepted Answer

Food gives life to living beings — The Sanskrit saying 'annena jātāni jīvanti' translates to 'food gives life to living beings', emphasizing the fundamental role of food in sustaining life.

Question 15

Why is there diversity in traditional food consumed in various states of India?

Accepted Answer

Diversity in traditional food exists because different states have varied soil types, climates, and agricultural practices which influence the crops grown. Also, taste preferences, culture, and traditions vary across regions, leading to different traditional foods. — Diversity in traditional food is due to the variation in soil and climate across India, which affects the crops that can be grown in each region. Additionally, cultural and traditional preferences influence the kinds of food eaten in different states. For example, Punjab grows wheat and maize and consumes makki di roti and sarson da saag, while Karnataka grows rice and ragi and consumes idli and dosa.

Mindful Eating: A Path to a Healthy Body

Mindful Eating: A Path to a Healthy Body — Study Notes

3.1 What Do We Eat?

3.1.1 Food in different regions

3.1.2 How have cooking practices changed over time?

Practice Questions — Mindful Eating: A Path to a Healthy Body

All 12 Chapters in Curiosity