Thyroid hormone a small iodinated amine)enters target cells in a manner similar to _ _.
A)glucagon,because the structure of glucagon is similar to that of thyroid hormone
B)growth hormone,because the thyroid works synergistically with thyroid hormone
C)insulin,because insulin is a small peptide
D)steroid hormones,because both diffuse easily into target cells

Question

Quizplus · Accepted Answer

Thyroid hormone is a small molecule and can easily diffuse across the plasma membrane of target cells, similar to steroid hormones, which also diffuse across the plasma membrane. Glucagon, growth hormone, and insulin are all larger molecules and have different mechanisms of entering target cells.

Thyroid Hormone a Small Iodinated Amine)enters Target Cells in a Manner