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Human Blood Cells Quiz

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Questions and Answers

What is the primary function of hemoglobin in erythrocytes?

Acting as an immune response agent

Providing structural support to the cell

Transporting respiratory gases (correct)

Regulating blood pressure

What is the average lifespan of erythrocytes in the human body?

120 days (correct)

60 days

30 days

90 days

Which characteristic differentiates leucocytes from erythrocytes?

Leucocytes have a biconcave shape

Leucocytes form in the spleen

Leucocytes contain hemoglobin

Leucocytes are colorless and nucleated (correct)

How many red blood cells (RBCs) are typically found in a healthy adult male per mm³ of blood?

<p>5 to 5.5 million (A)</p> Signup and view all the answers

What component mainly gives erythrocytes their red color?

<p>Iron-containing hemoglobin (B)</p> Signup and view all the answers