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प्रश्न
Tasty food is not always nutritious and nutritious food may not always be tasty to eat. Comment with examples.
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उत्तर
Tasty food is not always nutritious, e.g., burger, samosa, chowmin, potato chips etc. are very tasty but not nutritious. These foods contain refined flour (maida), spices and lot of oil which is not good for health. On the other hand, nutritious food may not always be tasty to eat, e.g., boiled vegetables, pulses etc. are not always tasty but are very good for health. These foods contain important nutrients (proteins, vitamins, minerals etc.) which help to make us strong and healthy.
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संबंधित प्रश्न
Explain the following term with an example:
Scavenger
Distinguish between the following:
Assimilation and Absorption
Name the sources of the following:
Sucrose
Classify according to food-type.
Vulture
We prepare a variety of foodstuffs and dishes at home. Are we then autotrophic organisms?
Short Answer Type Questions:
Name the vitamin that our body prepares in the presence of sunlight.
What is obesity?
Match the Column I with Column II and choose the correct option.
| Column I (Food componets) | Column II (Gross calorific value) | ||
| i. | Proteins | a. | 9.45 Kcal/g |
| ii. | Carbohy drates | b. | 4.1 Kcal/g |
| iii. | Fats | c. | 5.65 Kcal/g |
Observe the diagram given as Figure and label the following terms given in the box.
| stomatal opening, guard cell |
Take a potted plant with broad leaves. Take two strips of black paper and cut out a small square in the centres. Cover a part of two leaves with these papers and secure them with paper clips Figure. Keep the plant in sunlight for 2–5 days. Observe the difference in the colour of the covered and the uncovered portions on the leaf. Perform iodine test on this leaf. Did the two parts show different results? Now take second leaf. Remove the strip and expose the covered part to the sunlight for 2–3 days and do the iodine test again. Describe your observations.
