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Textbook Solutions: Let us enhance our learning

January 22, 2025
3 min read

Question 1: Pick the odd one out and give reasons

(i) Jowar, Bajra, Ragi, Chana

  • Answer: Chana is the odd one out.
  • Reason: Jowar, Bajra, and Ragi are millets (cereals), whereas Chana (Chickpea) is a pulse (legume).

(ii) Kidney beans, Green gram, Soya bean, Rice

  • Answer: Rice is the odd one out.
  • Reason: Kidney beans, Green gram, and Soya bean are pulses/legumes (rich in protein), whereas Rice is a cereal (rich in carbohydrates).

Question 2: Discuss traditional versus modern culinary practices in India.

Answer:

  • Traditional Practices: In the past, cooking was done on Chulhas using wood or coal. Grinding was done manually on a Sil-batta (stone grinder). Food was often cooked in clay pots which retained nutrients but took longer.
  • Modern Practices: Today, we use Gas stoves (LPG) or induction cooktops which are cleaner and faster. We use electrical mixers/grinders which save time and effort. While modern methods are convenient, over-cooking or using excess refined oils can reduce nutritional value.

Question 3: “Good food may act as medicine.” Questions to ask.

Answer: Ravi could ask:

  1. “Which specific food items can help boost our immunity against common colds?”
  2. “If someone has weak bones, what foods can act as a remedy to strengthen them without taking pills?”

Question 4: Thoughts on delicious vs. healthy food.

Answer: It is true that taste does not always equal health.

  • Example 1 (Delicious but Unhealthy): A burger or pizza tastes very good but is high in fats and refined flour, which is bad for health if eaten daily.
  • Example 2 (Nutritious but Less Enjoyable): Bitter gourd (Karela) or boiled spinach might not taste delicious to everyone, but they are packed with vitamins and iron essential for the body.
  • Conclusion: We should train our taste buds to enjoy healthy foods by cooking them in tasty ways.

Question 5: Medu’s diet problems.

Answer:

  • Problem: Medu eats biscuits, noodles, and white bread (refined flour/Maida) and skips vegetables. He suffers from stomach ache and constipation.
  • Cause: His diet lacks Roughage (Dietary Fibre) which is essential for bowel movement.
  • Changes Required: He needs to include Dietary Fibres.
    1. Eat green leafy vegetables and fruits.
    2. Switch from white bread to whole wheat bread.
    3. Drink plenty of water.

Question 6: Reshma’s vision problem.

(i) Which deficiency disease is she suffering from?

  • Answer: Night Blindness (difficulty seeing in dim light).

(ii) Which food component may be lacking in her diet?

  • Answer: Vitamin A.

(iii) Suggest some food items.

  • Answer: Carrot, Papaya, Milk, Mango, Fish oil, Green leafy vegetables.

Question 7: Choice between Canned Juice, Fresh Juice, Fresh Fruit.

Answer: I would prefer (iii) Fresh Fruit.

  • Reason: While fresh juice has vitamins, it often lacks dietary fibre (pulp is removed). Canned juice often contains added sugar and preservatives. A whole fresh fruit provides vitamins, minerals, water, and roughage (fibre), making it the healthiest choice.

Question 8: Gourav’s Fracture.

(i) Why did the doctor give calcium tablets?

  • Answer: Calcium is the mineral required for making bones strong and healing the fracture.

(ii) Why Vitamin D syrup on the second visit?

  • Answer: Vitamin D helps the body absorb calcium. Without Vitamin D, taking calcium tablets might not be effective as the body cannot use the calcium.

(iii) Question about doctor’s choice?

  • Answer: “Why didn’t the doctor suggest natural sources like sunlight for Vitamin D or milk for Calcium instead of just medicines?”