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Unformatted text preview: Endocrine System: Biochemistry, Secretion and Transport of Hormones 1. Place the following hormones into one of the three categories of hormones (peptides, amines or steroids): T 4 (thyroxin), estradiol, norepinephrine, insulin, aldosterone, glucagon, cortisol, growth hormone, T 3 (triiodothyronine), epinephrine, testosterone and vasopressin (ADH). Peptides Amines Steroids 2. Peptide hormones are synthesized as large precursor hormones called ______________. The hormones (or prohormones) are stored in _______ ________ and released from the cell by ___________. Do peptide hormones require a carrier in the blood stream? 3. Catecholemines are produced in the _________ of the adrenal gland and are classified as ___________ hormones since they are derived from ___________. Stimulation of the chromaffin cells causes an influx of ________ ions, which causes the vesicles to merge with the plasma membrane and release the...
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