Immune system crossword

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Across
  1. 5. Structure formed by two identical or similar antibody units, such as in secretory IgA
  2. 6. Infectious agent that requires a host cell to replicate and can cause diseases in living organisms
  3. 7. Specific parts of an antigen that are recognized and bound by antibodies or immune cells
  4. 10. Substance that triggers an immune response by being recognized as foreign by the immune system
  5. 12. molecule made of sugar and protein, often found on cell surfaces, playing a role in cell recognition and signaling
  6. 13. Large immune cell that engulfs and digests pathogens and cellular debris
  7. 14. Y-shaped proteins produced by B cells that specifically bind to antigens to neutralize pathogens
  8. 15. Type of cell that produces and secretes antibodies; derived from activated B cells
  9. 16. 1st What is one of the first line innate immunity
Down
  1. 1. Process of cell division that results in two genetically identical daughter cells
  2. 2. Type of immune response involving antibodies produced by B cells to fight pathogens in body fluids
  3. 3. Enzymes released by cytotoxic T cells and natural killer cells that induce apoptosis in infected or cancerous cells
  4. 4. Type of antibodies derived from a single clone of B cells, ensuring uniformity in their binding specificity
  5. 8. What cell type are first responders at sites of infection/trauma
  6. 9. Describes T cells that kill infected or cancerous cells directly by inducing apoptosis
  7. 11. If a stem cell matures here you get a T-cell, what is it?