A&P 2 102 Quiz

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What are the four hormone classes? 17.2 ● Hormones can be divided into two major groups on the basis of the chemical structure- derived from amino acids or lipids 1. Amine Hormone- Amino acids ... with modified groups (norepinephrines carboxyl group is replaced with a benzene ring) 2. Peptide Hormone- Short chains of linked amino acids 3. Protein Hormone- Long chains of linked amino acids 4. Steroid Hormones- Derived from the lipid cholesterol Which are lipid soluble vs. water soluble? Why and how does this affect how they act on the cell membrane? 17.2 ● A steroid hormone directly initiates the production of proteins within a target cell. Steroid hormones easily diffuse for the cell membrane. The hormone binds to its receptor in the cytosol, forming a receptor hormone complex. The receptor hormone complex then enters the nucleus and binds to the target gene on the dna. Transcription of the gene creates a messenger rna that is translated into the desired protein within the cyto plasma. [Show More]

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