The secretion of most hormones is controlled by a positive feedback system. Aldo
ID: 87191 • Letter: T
Question
The secretion of most hormones is controlled by a positive feedback system. Aldosterone is synthesized from cholesterol Hormone receptors are always located on the cell membrane. A hormone carries out a single a single specific function. Hormones regulate certain activities of the immune system. Molecules called G-proteins link hormone receptors on the outer surface of the membrane to adenylate cyclase molecules in the inner membrane. Steroid hormones are usually released in large quantities into the blood. Radioimmunoassay utilize antibodies that specifically bind (combine) with a single hormone. Steroid hormones are stored and then released in large quantities into the blood. Removal of one pair of endocrine glands often results in the enlargement of the other gland.Explanation / Answer
31. False (The mechanisms that regulate hormones in the human body are mostly negative feedback systems.)
32. True.
33. False. (Water-soluble hormones ( glycoproteins, catecholamines, and peptide hormones composed of polypeptides) are not lipid-soluble, thus cannot diffuse through cell membranes. Consequently their receptors are located on the plasma membrane because they have bound to a receptor protein located on the plasma membrane to enter the cell, whereas receptors for lipid-soluble hormones are usually found within the cytoplasm.)
34. False ( Different hormones have different functions, while one hormone have multiple functions)
35. True ( certain aspects of the immune system is managed by hormones)
36. True
37. False (hormones irrespective of their nature is releasef in minute quantities in blood in normal condition)
38. True
39. False ( The endocrine secretes through its network of glands, which are small but highly important organs that produce, store, and secrete hormones. But hormones irrespective of their types are secreted in minute quantities)
40. True