A Certain Cell Type Has Existed in the Blood and Tissue

question 24

Multiple Choice

A certain cell type has existed in the blood and tissue of its vertebrate host's immune system for over 20 years. One day, it recognizes a newly arrived antigen and binds to it, subsequently triggering a secondary immune response in the body. Which of the following cell types most accurately describes this cell?

• A) T cell
• B) memory cell
• C) secondary cell
• D) B cell

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Definitions:

Impaired Consciousness

A reduced state of awareness where an individual is less responsive to external stimuli, varying from drowsiness to coma.

Disorientation

A confusion about time, place, or identity, often experienced as a symptom of neurological or psychiatric conditions.

Wandering Attention

The tendency for focus to shift away from the task or topic at hand, often leading to distractions and decreased productivity.

Agnosia

A neurological condition characterized by the inability to recognize and identify objects, people, or sounds, despite having functioning sensory organs.