Gas exchange involves the transport of two respiratory gases, oxygen and carbon dioxide. Match each statement into the appropriate items whether it applies to oxygen only, carbon dioxide only, or both oxygen and carbon dioxide. a. Net diffusion from alveoli capillaries
b. Waste product of cellular respiration
c. Sometimes transported as bicarbonate
d. Net diffusion from lung capillaries to alveoli
e. Net diffusion from body tissues blood
f. Enters alveoli during inhalation
g. Required for cellular respiration
h. Transported by hemoglobin

a. both oxygen and carbon dioxide

b. carbon dioxide only

c. carbon dioxide only

d. oxygen only

e. carbon dioxide only

f. oxygen only

g. oxygen only

h. oxygen only

Explanation:

This question is describing the gaseous exchange of carbon dioxide and oxygen that occurs during cellular respiration. The gaseous exchange occurs via a structure called ALVEOLI OR AIR SAC.

According to this question, the following statements in the question will be matched with whether it applies to oxygen only, carbon dioxide only, or both oxygen and carbon dioxide:

a. Both oxygen and carbon dioxide are diffused through the alveoli capillaries.

b. Carbon dioxide is the waste product of cellular respiration (excreted via the lungs).

c. Carbon dioxide have the ability to form carbonates (CO3²-) and are sometimes transported in that form.

d. Oxygen from the lungs diffuse into the alveoli during inhalation.

e. Carbon dioxide from the body tissues are carried by the blood into the alveoli in order to be transported out of the body.

f. Inhalation is the taking in of air (oxygen-containing). Hence, oxygen only enters alveoli during inhalation.

g. Oxygen is the necessary substance needed by cells in order to perform cellular respiration (aerobic).

h. Haemoglobin is an iron-based protein present in the blood cells. It possess affinity for oxygen and carries oxygen in the blood.