Respiratory System

Question 1

What’s the functions of the respiratory system?

Answer 1

Brings oxygenated blood to the heart which supplies oxygen to the circulatory system.

Question 2

What happens in the stage of breathing ?

Answer 2

Moving air into and out of the lungs,
a. Inhalation means bringing air in
b. Exhalation means taking air out

Question 3

What happens in the External Respiration of breathing and where does it occur

Answer 3

Exchange of o2 & co2 between the air and blood, occurs in the lungs.

Question 4

What happens in the Internal Respiration of Breathing

Answer 4

Exchange of O2 and Co2 between the blood and tissue, occurs in the rest of the body.

Question 5

What happens in the cellular respiration stage of breathing?

Answer 5

It’s a series of energy releasing reactions in the mitochondria of cells,

and it releases energy in the form of ATP