1. how do unicellular organisms respire ?
ANS . Unicellular organisms respire by the process of diffusion. Diffusion is the process by which molecules fom a high concentration region move to a low concentration region.
2. differentiate between inhaled and exhaled air .
Ans . Inhalation is the process of intake of air into lungs, whereas exhalation is the process of letting air out from lungs. ... The composition of air which is inhaled is oxygen and nitrogen mix, while the composition of air which is exhaled is carbon dioxide and nitrogen mix.
3. How do plants respire ?
Ans . The process of respiration in plants involves using the sugars produced during photosynthesis plus oxygen to produce energy for plant growth. ... As with photosynthesis, plants get oxygen from the air through the stomata.
4. How does diaphagrm help in breathing ?
Ans. Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges. This contraction creates a vacuum, which pulls air into the lungs. Upon exhalation, the diaphragm relaxes and returns to its domelike shape, and air is forced out of the lungs
5. Write the chemical reaction involved in the breakdown of sugar , aerobially .
Ans . The chemical equation is glucose + oxygen + carbon dioxide + water. This process requires oxygen and therefore following anaerobic respiration there is oxygen debt in the cell, as oxygen is needed to break down the lactic acid produced.
SHORT ANSWER QUESTIONSsbove
Notes for biology here you go free
Answers
bahut hi chota Questions hai..
Answer:1)Unicellular organisms respire by the process of diffusion. Diffusion is the process by which molecules fom a high concentration region move to a low concentration region
2)Inhalation is the process of intake of air into lungs, whereas exhalation is the process of letting air out from lungs. ... The composition of air which is inhaled is oxygen and nitrogen mix, while the composition of air which is exhaled is carbon dioxide and nitrogen mix
3)he process of respiration in plants involves using the sugars produced during photosynthesis plus oxygen to produce energy for plant growth. ... As with photosynthesis, plants get oxygen from the air through the stomata.
4)Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges. This contraction creates a vacuum, which pulls air into the lungs. Upon exhalation, the diaphragm relaxes and returns to its domelike shape, and air is forced out of the lungs
5)The chemical equation is glucose + oxygen + carbon dioxide + water. This process requires oxygen and therefore following anaerobic respiration there is oxygen debt in the cell, as oxygen is needed to break down the lactic acid produced.