Question

multiple choice question
which term refers to the clumping of cells that occurs when an antibody binds to more than one antigen-bearing

agglutination
precipitation
dissolution
neutralization

Explanation:

To solve this, we analyze each option:

• Agglutination: Defined as the clumping of cells (or particles) when antibodies bind to multiple antigen - bearing cells.
• Precipitation: Involves the formation of insoluble complexes from soluble antigens and antibodies, not cell clumping.
• Dissolution: Means breaking down or dissolving, opposite of clumping.
• Neutralization: Involves antibodies blocking the activity of antigens (like toxins), not clumping.

So the term for cell clumping due to antibody - antigen binding is Agglutination.

Answer:

A. Agglutination