Signalling First Exams 2025

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Across
  1. 2. An example of ligand that is a protein
  2. 4. Number of domains in a cell surface receptor
  3. 6. Used for ditant signalling outside of the body
  4. 7. Ligands that diffuse to neighbouring cells
  5. 9. Used to help the body fight cancer, infections, and other diseases
  6. 12. Used in distant signalling within the body
  7. 14. Maintained by progesterone
  8. 17. An example of a ligand that is an amine
  9. 18. Ion involved in the exocytosis of acetyl choline
  10. 19. A chemical messenger released by one cell to signal either itself or a different cell
  11. 20. Child birth and ovulation are both examples ________ feedback
Down
  1. 1. A phenomenon displayed by Aliivibrio fischeri
  2. 3. Receives a signalling molecule
  3. 5. Describes the chemical nature of the amino acids on the outside of an intracellular receptor
  4. 8. Where the oestradiol receptors are found
  5. 10. Prevented by the release of calcium ions to bring about the cortical reaction cause
  6. 11. An example of a ligand that is a steroid
  7. 13. Receptors are made of _______
  8. 14. Adrenaline
  9. 15. Increases the response within a cell through amplifying the original signal
  10. 16. The feedback mechanism central to homeostasis
  11. 18. The c in cAMP