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ligand-gated ion channels, G protein-coupled receptor, and receptor tryosine kinases.

The three ways a cell may respond when a signal molecule binds to a receptor protein is by reception, signal transduction and response.

Steps in cell response to receptor protein

  • Reception;  The signal molecule binds the receptor.
  • Signal transduction; The chemical signal results in a series of enzyme activations
  • Response; The resulting cellular responses.

There may be observable cell growth, motility, or changes in gene expression.

Therefore, the three ways a cell may respond when a signal molecule binds to a receptor protein is by reception, signal transduction and response.

Learn more about cell responses here:

https://brainly.com/question/10058019

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