Question

red blood cells, or erythrocytes, do which of the following functions in blood?

fluid in which other cells are suspended

transport oxygen and carbon dioxide

assist in clotting

fight infection and aid in immune processes

Explanation:

To determine the function of red blood cells (erythrocytes), we analyze each option:

• "Fluid in which other cells are suspended" describes plasma, not red blood cells.
• Red blood cells contain hemoglobin, which binds to oxygen in the lungs and transports it to tissues, and also carries carbon dioxide back to the lungs for exhalation. This matches the function of erythrocytes.
• "Assist in clotting" is the role of platelets, not red blood cells.
• "Fight infection and aid in immune processes" is the function of white blood cells (leukocytes), not red blood cells.

Answer:

The correct option is: "Transport oxygen and carbon dioxide" (the second option in the list).