Question 24

Compare and contrast peptide and steroid hormones. Give four examples of each.

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College Answer

Most candidates used a table format to present their answer. Most also were able to give examples of peptides and steroids hormone. A common omission was an explanation of the differences in mechanism of action and different mediators. Better answers were able to compare and contrast aspects such as structure, synthesis, precursor, storage, transport and kinetics. Examples of peptide hormones include the anterior and posterior pituitary hormones, Parathyroid hormone, calcitonin, etc. Examples of steroid hormones are the adrenocortical hormones (e.g. glucocorticoid, mineralocorticoids, androgens), sex hormones and 1, 25 di OH vitamin D.