Question

Which of the following hormones binds to a receptor on the target cell membrane? a. triiodithyronine...

Which of the following hormones binds to a receptor on the target cell membrane?

a. triiodithyronine
b. aldosterone
c. dehydroepiadrosterone
d. norepinephrine

Science   Anatomy-And-Physiology   
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Homework Answers

Answer #1

D. Nor-epinephrine

  • It is hormone that is derived from amino acid tyrosine. It receptor is located on plasma membrane. Their receptor belong to class of G protein coupled receptor. Binding of ligand to extracellular site of receptor induce formation of secondary messenger that produce further response.
  • Receptor for triiodothyronine is located intracellularly. It binds to thyroid hormone response element and influence production of mRNA. Although thyroid hormone is derived from tyrosine.
  • Aldosterone and dehydroepiadrosterone are steroid hormone whose receptor lie intracellularly.

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