Food items should be tested for the presence of nutrients.’ Justify your answer with two reasons. PLZ BE QUICK IT SHOULD BE IN A EASY LANG
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Answer:
1.What are enzymes? Name any one enzyme of our digestive system and write its function.
2.(i) Write the balanced chemical equation for the process of photosynthesis,
(ii) When do the desert plants take up carbon dioxide and perform photosynthesis ?
3.What are enzymes? Name any one enzyme of our digestive system and write its function.
4.(i) Write the balanced chemical equation for the process of photosynthesis,
(ii) When do the desert plants take up carbon dioxide and perform photosynthesis ?
5.In single celled organisms diffusion is sufficient to meet all theirrequirements of food, exchange of gases or removal of wastes but it is not in case of multicellular organisms. Explain the reason for this difference.
6. List in tabular form three differences between arteries and veins.
7. Why do the walls of the trachea not collapse’when there is less air in it?
8. In human alimentary canal, name the site of complete digestion of various components of food. Explain the process of digestion.
9.What is saliva? State its role in the digestion of food.
10. Explain the process of nutrition in Amoeba.
11. How are the alveoli designed to maximise the exchange of gases?
12-What is the mode of nutrition in fungi?
13 How do alveolar sac maximize the exchange of gases??
14- What is peristalsis?
15-Name the factors affecting the rate of photosynthesis.
16- Which part of the roots is involved in exchange of respiratory gases?
17- Explain the function of stomata, lenticles and pancreas.
18-Give two points of differences between respiration in plants and respiration in animals.
19- What is glycolysis?
20- State the function of epiglottis?
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