Pregnancy Test Mechanism

Part of Monoclonal Antibodies · Section 6 of 17

DiagramUnit: Infection & ResponseGCSE
Painted cross-section of a pregnancy test stick showing the three zones: sample pad receiving urine with hCG hormones, mobile antibodies with blue dye tags binding hCG, and test + control lines showing blue bands when positive.
Pregnancy Test Strip Sample Pad (urine) Conjugate Pad (colored antibodies) Test Line (immobilized anti-hCG) Control Line (always appears) Absorbent Pad hCG hCG hCG hCG hormones (if pregnant)

This diagram covers Pregnancy Test Mechanism within Monoclonal Antibodies for GCSE Biology. Production and medical applications of identical antibodies, hybridoma cells, diagnostics It is section 6 of 17 in this topic. Focus on the labels, the relationships between parts, and the explanation that turns the diagram into an exam-ready answer.

Practice questions for Monoclonal Antibodies

What does the term 'monoclonal antibody' mean?

  • A. Identical antibodies produced from a single clone of cells
  • B. Antibodies that target many different antigens
  • C. Antibodies produced by many different cells
  • D. Antibodies that come from multiple animal species
1 markfoundation

Explain why hybridoma cells are needed to produce monoclonal antibodies.

3 marksstandard

Quick recall flashcards

What are myeloma cells?
Immortal cancer cells that divide continuously and are used to create hybridoma cells
What is hCG?
Human chorionic gonadotrophin - a hormone only produced during pregnancy, detected by pregnancy tests

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