10. Which statement is false regarding steroid hormones? a. they are water solub

Question

10. Which statement is false regarding steroid hormones? a. they are water soluble b. they cannot diffuse through cell membranes. c. they must bind to an extracellular receptor d. they remain in circulation for relatively short periods of time. e. all of the above 11. The secretion of aldosterone can be stimulated by a rise in blood potassium levels. This is an example of a. neural control b. hormonal control c. paracrine control d. humoral control e. autocrine control 12. The portion of the brain that has the greatest control over the endocrine system is the: a. thalamus b. infundibulum c. epithalamus d. hypothalamus e. posterior pituitary 13. Each of the following hormones is an amino acid derivative except a. testosterone b. norepinephrine. c. thyroxine (T) d. triiodothyronine (T) e. epinephrine 14. Which of the following hormone pairs is/are secreted by the same endocrine gland? a. aldosterone - cortisol b. ACTH-TRH c. thyroxine - TSH d. oxytocin - prolactin e. PTH-calcitonin 15. If the hypophyseal portal system were destroyed, the secretion of which hormone(s) would be directly affected? a. ACTH b. growth hormone c. TSH d. FSH e. all of the above

Explanation / Answer

10. e. All the above are false.

11. b. Hormonal control

12. d. Hypothalamus is the master gland.

13. a. Testosterone is lipid derived.

14. a and d. Aldosterone and cortisol are secreted from adrenal gland. Prolactin and oxytocin from pituitary gland.

15. e. All of the above hormones would be affected.

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