Which of the Following Is True About Signal Transduction by Hormones

Multiple Choice

Which of the following is true about signal transduction by hormones?

A) All hormones are linear chains of amino acids (peptides) .
B) Hormones can diffuse freely in and out of cells.
C) Steroid hormone-receptor complexes can enter the cell nucleus.
D) Peptide hormones directly act on DNA to stimulate transcription.
E) Binding of a peptide hormone to its receptor causes a conformational change in the hormone molecule.