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प्रश्न
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उत्तर
Water is necessary for our body because:
(i) Water acts as a solvent for many organic and inorganic compounds
(ii) Water facilitates the movement of food materials, waste products, and other chemical substances in the cytoplasm and circulatory process.
(iii) It plays an important role in regulating body temperature and osmotic pressure of the body fluids.
(iv) Water serves as a good medium for various metabolic reactions.
संबंधित प्रश्न
Distinguish between the following:
Herbivore and Carnivore
Fill in the blank:
Animal starch stored in the muscle and liver is ______.
Name the sources of the following:
Cellulose
Short Answer Type Questions:
Name the vitamin that our body prepares in the presence of sunlight.
Which of the following statement (s) is (are) true about the heart?
- Left atrium receives oxygenated blood from different parts of the body while the right atrium receives deoxygenated blood from the lungs
- Left ventricle pumps oxygenated blood to different body parts while the right ventricle pumps deoxygenated blood to the lungs
- Left atrium transfers oxygenated blood to the right ventricle which sends it to different body parts
- Left atrium transfers oxygenated blood to the right ventricle which sends it to different body parts
In the absence of which of the following will photosynthesis not occur in leaves?
Which of the following raw material is available in the air for photosynthesis?
Nitrogen is an essential nutrient for plant growth. But farmers who cultivate pulse crops like green gram, bengal gram, black gram, etc. do not apply nitrogenous fertilizers during cultivation. Why?
Observe the diagram given as Figure and label the following terms given in the box.
| stomatal opening, guard cell |
Try growing a sweet potato just in water. Describe your experiment and observations.
