Gas Exchange

Question 1

Respiration is a combination of 2 processes

Answer 1

External Respiration and Internal Respiration

Question 2

External respiration takes place in..

Answer 2

the lungs

Question 3

In expiration, gases diffuse through the cell membranes from a region of high concentration to a region of..

Answer 3

Low concentration

Question 4

In expiration, air that enters the alveoli after inhaling has a high concentration of oxygen than the oxygen in the blood in the capillaries, so oxygen diffuses..

Answer 4

out of the alveoli into the blood in the capillaries. The blood then carries this oxygen to the tissues

Question 5

Oxygen transport takes place in 3 steps, the first step consists of oxygen from the atmosphere going into the..

Answer 5

alveoli

Question 6

Oxygen transport second step consists of oxygen diffusion in alveoli into..

Answer 6

blood

Question 7

Oxygen transport third step consists of oxygen being released in the..

Answer 7

tissues

Question 8

Blood in the capillaries has a higher concentration of Carbon dioxide than the air in the alveoli it is returning from the body tissue that produce CO2 as

Answer 8

waste