Question

6. What changes are observed in diaphragm during inhalation?
7. Respiration is a continuous process. What is the need for it to be continuous rather than being like photosynthesis ? ​

Answer 1

Answer:

Q6) during inhalation the diaphragm moves downwards and our ribs move up , which results in expansion of space in our lungs so that we can inhale large amount of air .

7) It is a continuous process because only then only we can survive.

as oxyzen is needed by humans and all living beings for survival

Explanation:

Answer 2

• Answer: (1)  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.

• Answer: (2) Process of respiration yields energy which is required to perform a variety of routine activities. Thus, it needs to be a continuous process.