The Mechanism by Which Antigen-Reactive Cells Respond to Foreign Antigens

question 27

Multiple Choice

The mechanism by which antigen-reactive cells respond to foreign antigens while ignoring self-antigens is called clonal

• A) selection.
• B) deletion.
• C) anergy.
• D) expansion.

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Definitions:

Proximal Convoluted Tubule

The part of the renal tubule that extends from Bowman’s capsule to the loop of Henle. Compare with distal convoluted tubule.

Partially Reabsorbed

The process by which a substance, once secreted or excreted, is taken back into the body or a biological system, often referring to fluids or nutrients.

Sodium Ions

Positively charged ions of sodium, essential for conducting nerve impulses, muscle contraction, and maintaining fluid balance in the body.

Filtrate

The liquid that passes through a filter, separating it from suspended solids.