7.2 The Mammalian Gaseous Exchange System

Question 1

What is ventilation in biology?

Answer 1

Refers to the movement of air into and out of the lungs to supply oxygen to the body and remove carbon dioxide. This process is essential for maintaining proper respiratory function and exchanging gases between the body and the environment

Question 2

Why do mammals need oxygen for respiration and remove carbon dioxide?

Answer 2

They have a large surface area:volume ratio
Have a large volume of cells
Have a high metabolic demand due to them being very active and having to maintain body temperature