Question

post - video question: once the capillaries enter the tissue cells, which of the following occur to the erythrocytes? select all that apply, then click submit below carbon dioxide unloading carbon dioxide loading oxygen loading oxygen unloading

Explanation:

When capillaries enter tissue cells, erythrocytes (red blood cells) are involved in gas exchange. Oxygen is unloaded from erythrocytes to the tissue cells (since cells need oxygen for cellular respiration). At the same time, carbon dioxide (a waste product of cellular respiration in tissue cells) is loaded onto erythrocytes to be transported back to the lungs for exhalation. Carbon dioxide unloading from erythrocytes would occur in the lungs (not in tissue cells), and oxygen loading onto erythrocytes occurs in the lungs (not in tissue cells).

Answer:

• carbon dioxide loading
• oxygen unloading