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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
Name the sources of the following:
Vitamin A
Classify according to food-type.
Frog
Why do living organisms need nutrition?
Explain the various steps of nutrition in animals.
Short Answer Type Questions:
What are the functions of carbohydrates?
Match the following.
| Column A | Column B | ||
| (1) | Fats | (a) | Jowar |
| (2) | Proteins | (b) | Oil |
| (3) | Vitamins | (c) | Bran of cereals |
| (4) | Minerals | (d) | Pulses |
| (5) | Starchy foods | (e) | Iron |
In the absence of which of the following will photosynthesis not occur in leaves?
Unscramble the following to form terms related to modes of nutrition.
- RASPAEIT
- ROPEHYTSAP
- TOROPHAUT
- SIBIOMSYS
Assertion (A): Amoeba takes in food using finger like extensions of the cell surface.
Reason (R): In all unicellular organisms, the food is taken in by the entire cell surface.
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.
