Multiple choice

Which of the following is the largest wandering phagocytic cell of vertebrate blood?

  1. Thrombocyte

  2. Monocyte

  3. Erythrocyte

  4. Amoebocytes
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Monocytes are the largest white blood cells (leukocytes) in vertebrate blood. They are highly phagocytic and can migrate out of blood vessels into tissues to become macrophages, where they engulf pathogens and cellular debris. Thrombocytes (platelets) are cell fragments involved in clotting, erythrocytes (RBCs) carry oxygen, and amoebocytes are invertebrate defense cells.

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