The tyrosine-kinase pathway is activated in response to certain lipophilic hormones, whereas the second messenger pathway is activated in response to certain hydrophilic hormones.

Question

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The tyrosine-kinase pathway is typically activated by hydrophilic hormones, such as insulin, while lipophilic hormones often use intracellular receptors rather than second messenger pathways.

The Tyrosine-Kinase Pathway Is Activated in Response to Certain Lipophilic