Which of the following are components of the adaptive immune system: I. Macrophage II. B cells III. Dendritic cells IV. T cells V. Mast cell VI. Plasma cell VII. Squamous cell

Question

BlackTom AI · Accepted Answer

Motivation behind this question rests on separating innate from adaptive immune components. 
Option a: I, III and V are part of the adaptive immune system. Macrophages (I) are classically considered innate immune cells, though they can present antigens; dendritic cells (III) are primarily innate antigen-presenting cells that activate adaptive responses, and mast cells (V) are hallmark innate effector cells. Therefore this trio does not accurately represent the adaptive immune system as a whole. 
Option b: V, VI and VII are part of the adaptive immune system. Mast cells (V) are innate responders, plasma cells (VI) are adaptive and derived from B cells, but squamous cells (VII) are epithelial cells, not immune cells. Since two components here are not part of adaptive immunity, this option is incorrect. 
Option c: II, IV and VI are part of the adaptive immune system. B cells (II) and plasma cells (VI) are central to humoral immunity, and T cells (IV) mediate cellular immunity; together they comprise the core adaptive components. This option aligns with standard immunology classifications. 
Option d: II, III and VII are part of the adaptive immune system. While B cells (II) are adaptive, dendritic cells (III) are innate antigen-presenting cells that initiate adaptive responses, and squamous cells (VII) are non-immune epithelial cells. The mix includes non-adaptive elements, making this option incorrect.

Which of the following are components of the adaptive immune system: I. Macrophage II. B cells III. Dendritic cells IV. T cells V. Mast cell VI. Plasma cell VII. Squamous cell

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