The immune system - EA, CC, JH, GK

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Across
  1. 1. which type of immune cell is responsible for producing antibodies in the adaptive immune response?
  2. 3. Which immune T cells directly kill virus-infected cells?
  3. 6. what is the term for a foreign substance that simulates an immune response in the body?
  4. 11. What co-receptor on helper T cells helps recognize antigens presented by MHC II?
  5. 12. what type of white blood cells are crucial for adaptive immunity?
  6. 13. what is the name of an attenuated virus that triggers an immune response and memory cells
  7. 14. what type of cells ensure a quicker immune response upon re-exposure to an antigen?
  8. 17. What is the term for antibodies, named for their role in the immune system?
  9. 18. what are the signalling molecules released T cells that promote B cell growth and division?
Down
  1. 2. what term describes substances released from cells, such as antibodies produced by plasma cells?
  2. 4. Which immune cells engulf pathogens and present antigens to activate the adaptive immune system?
  3. 5. which type of immune response that involves T cells directly attacking infected or abnormal cells
  4. 7. which Y-shaped protein is produced by plasma cells and binds to specific antigens?
  5. 8. what is a specialised antibody that is not naturally derived?
  6. 9. what cells do B cells differentiate into to produce antibodies?
  7. 10. which serine proteases trigger programmed cell death?
  8. 15. What type of immune response is non-specific and acts immediately or within hours?
  9. 16. what is the process of attaching antibodies to antigens that inactivates them?