Science Quiz

Respiration of Humans

3 flashcards · Biology · by Nawal Al Soussi

1. What is respiration?

   It is the process of inhalation and exhalation of breathing by taking in oxygen and giving out carbon dioxide.

2. Where the exchange of gas occur ?

   In the lung there are small air sacs called alveoli they collect the air we inhale and fillter it and then give out the CO2 gas that we exhale later on.

3. What are the 5 functions of the respiratory system?

   Through breathing, inhalation and exhalation, the respiratory system facilitates the exchange of gases between the air and the blood and between the blood and the body's cells. The respiratory system also helps us to smell and create sound.