BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Similarities Between Steroid and Peptide Hormones Both steroid and peptide hormones are signaling molecules that regulate the physiology and the behavior of organs. Also, both hormones are produced in the endocrine glands and released into the bloodstream in order to be transported to the target organ.

Detailed explanation-2: -Steroids generally travel to their target cells attached to a special carrier protein that “likes” water (such as, sex steroid hormone binding globulin and serum albumin). The hormones detach before passing into the cell where they bind to receptors.

Detailed explanation-3: -They differ in their relative solubility in plasma. Peptide hormones consist of three or more amino acids and are soluble in blood. Steroid hormones are derived from cholesterol and are insoluble in blood. Amine hormones are derivatives of amino acids and some are soluble in blood.

Detailed explanation-4: -Steroid hormones are transported through the blood by being bound to carrier proteins-serum proteins that bind them and increase the hormones’ solubility in water. Some examples are sex hormone-binding globulin (SHBG), corticosteroid-binding globulin, and albumin.