Blood's primary job is:
A) transporting oxygen from the lungs and delivering it to tissue cells throughout the body.
B) transporting protein from the bone marrow and delivering it to tissue cells throughout the body.
C) transporting sugar from the pancreas and delivering it to tissue cells throughout the body.
D) transporting oxygen from the heart and delivering it to tissue cells throughout the body.

Question

Quizplus · Accepted Answer

Blood's primary job is to transport oxygen from the lungs and deliver it to tissue cells throughout the body. This is done through the red blood cells, which contain hemoglobin that binds to oxygen in the lungs and carries it to the tissues where it is needed. Blood also carries carbon dioxide, a waste product of cellular respiration, back to the lungs to be exhaled.

Blood's Primary Job Is