Hormone Receptor Properties and Mechanisms of Action Quiz

<p>Chemical substance produced in one part of the body and carried to distant target organs to modify their functions</p> Signup and view all the answers

<p>Acting via cAMP-cGMP</p> Signup and view all the answers

<ol> <li>Steroid hormones: Examples include adrenocorticosteroid hormones, androgens, estrogens and progesterone. 2. Amino acid derivatives: Examples include epinephrine, norepinephrine and thyroid hormones. 3. Peptide/Protein hormones: Examples include Insulin, glucagon, parathormone, calcitonin, and pituitary hormones.</li> </ol> Signup and view all the answers

<p>The action of a hormone at a target organ is regulated by four factors: 1. Rate of synthesis and secretion 2. Specific transport systems in plasma 3. Hormone-specific receptors in target cell membranes 4. Metabolism</p> Signup and view all the answers

<p>A hormone can act through various mechanisms. Peptide hormones exert their action by binding to specific receptors on the cell membrane, leading to the activation of secondary messengers such as cAMP or IP3/DAG, which in turn initiate intracellular signaling cascades.</p> Signup and view all the answers

<p>Insulin exerts its effects by binding to specific insulin receptors on target cell membranes, leading to the activation of intracellular signaling pathways that regulate glucose uptake, metabolism, and storage.</p> Signup and view all the answers

<p>Hormones acting through cAMP-cGMP: Examples include glucagon and parathormone. Hormones acting through calcium: Examples include calcitonin and some pituitary hormones.</p> Signup and view all the answers