Gaseous exchange system

Question 1

Give one function of the ribs

Answer 1

Protection of lungs/heart

Question 2

What is diffusion

Answer 2

The process where the oxygen moves from the air inside the lungs into the blood.
Particles spread out naturally from areas of high concentration to areas of low concentration

Question 3

Oxygen moves from the lungs into the blood through the walls of the …

Answer 3

Capillaries

Question 4

Give two adaptations of the lungs that help the rapid absorption of oxygen into the blood.

Answer 4

have many alveoli
good blood supply

Question 5

During breathing oxygen moves into the blood. Explain how oxygen moves into the blood past paper

Answer 5

Inside the air sacs, oxygen moves across paper-thin walls to tiny blood vessels called capillaries and into blood