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Home Q & A Board Biology-Related Homework Help Cell Biology
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Juliakg1 Juliakg1
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11 years ago
Which of the following are chemical messengers that pass through the plasma membrane of cells and have receptor molecules in the cytoplasm?
a) follicle stimulating hormone, a protein hormone
b) cAMP, a nucleotide
c) testosterone, a steroid hormone
d) insulin, a peptide hormone
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#1
11 years ago
c. testosterone, a steroid hormone.

Whether or not a hormone (or other signal messenger) can pas through the cell membrane depends on its composition.  Polar substances, like proteins and peptides, cannot.  Steroids are non-polar, and thus they can move though the cell membrane.
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lespink29lespink29
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11 years ago
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