E OR FALSE. If true shade A, if False shade B 31. The secretion of most hormones
ID: 301538 • Letter: E
Question
E OR FALSE. If true shade A, if False shade B 31. The secretion of most hormones is controlled by a positive feedback system. 32. Aldosterone is synthesized from cholesteroi. 33. Hormone receptors are always located on the cell membraneiase out s iagh speifc functinals 34. A hormone carries out a single specific function. 35. Hormones regulate certain activities of the immune system. 36. Steroid hormones are stored and then released in pulsatile fashion. 37. Hormones are usually released in large quantities into the blood system. Fiel Se 38. Thyroid hormone is classified as a steroid. ? 39. Serotonin is derived from tryptophan, enzyme catechol-O-methyl transferase (COMT) in the nervous system is important in the degradation of catecholamines by neuroglia cells.Explanation / Answer
31. False. Because most of the hormones are regulated by negative feedback.
32. True. Hormones secreted from gonads are steroid hormones. Aldosterone is too secreted from gonads.
33. False. Hormone receptor could be located in membrane and inside the cell.
34. True. Hormone carry specific function because they will function at specific body sytem where they have the receptors for receiving it from blood.
35. True. For example, thymus gland have the function of regulating activities of immune system.
36 . False. Steroid hormone are released as soon as they are secreted.
37. False. Hormones are usually secreted in small number because they are effective in small concentration.
38. False .Thyroid hormone is a amino acid hormone.
39. True. Serotonin is derived from tryptophan.
40. True. The enzyme methyl O transferass is important in degradation of catecholamines like dopamine.
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