Extra Question:
Que: What are the end probucts of aerobic respiration.
Ans: During aerobic respiration, carbon dioxide and water are eleased along with a large amount of energy.
Que: The cellular respiration process takes place in which cell organelle?
Ans: Cellular respiration takes place in the mitochondria of the cell.
Que: in some animals, exchange of gases takes place through its thin and moist skin. Name one such animal?
Ans: Earthworm is an animal where exchange of gases during breathing or respiration takes place tjrough lits thin and moist skin.
Que:Give the name of respiratoyr organs in following animals.
(a) Fish
(b) Human being
Ans:
(a) Fish - Gills
(b) human being - lungs
Que: Our nostrills has hair and mucous. What is the need to have them in our nasal cavity?
Ans: Our nostrills possess hairs and mucous lining. These help in preventing dirt, dust and germs from entering our respiratory system.
Que:Sometime we seen that farmers loosen the soil. What is the reason behind it?
Ans: The farmers sometimes loosen the soil. This helps the root to through the air present in the space between soil particles.
Que:Various organs constitute the respiratory system of human. These organs are locted according to their functions. Identify them.
Ans: The various organs in the respiratory system of human are nostrills, nasal passage, nasal cavity, windpipe and lungs.
