Which blood cells destroy disease-causing microorganisms?

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Study for the AAMI Certified Associate in Biomedical Technology Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Which blood cells destroy disease-causing microorganisms?

Explanation:
White blood cells are the immune system’s frontline against infection. They identify and attack disease-causing microorganisms such as bacteria, viruses, and fungi. Different types work in different ways: some (like neutrophils and macrophages) engulf and digest invaders, while others (like B cells and T cells) coordinate the immune response and produce antibodies that neutralize pathogens. RBCs carry oxygen, platelets help with clotting, and plasma is the liquid component of blood; none of these destroy pathogens as their primary role. So the cells responsible for destroying invading microorganisms are white blood cells.

White blood cells are the immune system’s frontline against infection. They identify and attack disease-causing microorganisms such as bacteria, viruses, and fungi. Different types work in different ways: some (like neutrophils and macrophages) engulf and digest invaders, while others (like B cells and T cells) coordinate the immune response and produce antibodies that neutralize pathogens. RBCs carry oxygen, platelets help with clotting, and plasma is the liquid component of blood; none of these destroy pathogens as their primary role. So the cells responsible for destroying invading microorganisms are white blood cells.

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