Hormones Are Classified as Either Steroid or Peptide Hormones

Multiple Choice

Hormones are classified as either steroid or peptide hormones. Which of the following explains the differences between the two classes?

A) Steroid hormones are lipid based and pass through the membrane; peptide hormones are protein based and bind to cell surface receptors.
B) Steroid hormones are protein based and pass through the membrane; peptide hormones are steroid based and bind to cell surface receptors.
C) Steroid hormones are lipid based and bind to cell surface receptors; peptide hormones are protein based and pass through the membrane.
D) There are no major differences. Steroid and peptide hormones are both protein based and pass through the membrane.