Topic 16: Functional Organization of the Endocrine System. Questions and answers. Latest update

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Topic 16: Functional Organization of the Endocrine System. Questions and answers. Latest update Question 1 Correct 1.75 points out of 1.75 Flag question Question text Which pattern of hormo... ne secretion, often observed in steroid reproductive hormones, will fluctuate over a monthly cycle? Select one: a. acute hormone secretion b. episodic hormone secretion c. long-term hormone secretion d. chronic hormone secretion Question 2 Correct 1.75 points out of 1.75 Flag question Question text How do most water-soluble hormones travel in the bloodstream? Select one: a. attached to proteins b. attached to carbohydrates c. attached to amino acids d. as free hormones Question 3 Correct 1.75 points out of 1.75 Flag question Question text The role of cAMP when it acts as an intracellular mediator in cells is to Select one: a. bind to and activate protein kinase. b. activate genes in the nucleus to produce mRNA. c. directly activate structural enzymes in the cytoplasm of the target cell. d. catalyze a cascade reaction that ultimately activates genes on the DNA. e. control levels of calcium in the cell. Question 4 Correct 1.75 points out of 1.75 Flag question Question text Most hormones are regulated by Select one: a. negative-feedback mechanisms. b. neural-feedback mechanisms. c. positive-feedback mechanisms. d. hormonal-feedback mechanisms. Question 5 Correct 1.75 points out of 1.75 Flag question Question text An intercellular chemical signal that is produced by neurons but functions like a hormone would be called a Select one: a. neuropathogen. b. neurotransmitter. c. neurocrine. d. neurohormone. e. neurosynthesizer. Question 6 Correct 1.75 points out of 1.75 Flag question Question text Which pattern of hormone secretion, represented by epinephrine, can have dramatic changes in its concentration and circulating levels? Select one: a. chronic hormone secretion b. long-term hormone secretion c. episodic hormone secretion d. acute hormone secretion Question 7 Correct 1.75 points out of 1.75 Flag question Question text Hormone receptor molecules may be ____ in order to change the target cell's sensitivity to a given hormone. Select one: a. increased in number b. decreased in number c. chemically altered d. moved e. increased in number, decreased in number and chemically altered Question 8 Correct 1.75 points out of 1.75 Flag question Question text Emily is in labor with her first child. The amplitude-modulated system would show her oxytocin levels Select one: a. to have a weak signal. b. to have a moderate signal. c. to have a strong signal. d. too weak to measure. Question 9 Correct 1.75 points out of 1.75 Flag question Question text Receptors for most lipid-soluble hormones are located Select one: a. in the cytoplasm of their target cells. b. on the plasma membrane of their target cells. c. in the lysosomes of their target cells. d. on the nuclear membrane of their target cells. e. in the nucleus or cytoplasm of their target cells. Question 10 Correct 1.75 points out of 1.75 Flag question Question text David has been feeling tired lately, and after having blood work completed, it shows elevated TSH, low iodine, and low thyroid hormone levels. Predict the possible cause from the choices below. Select one: a. David could possibly have a thyroid tumor. b. David may have iodine deficiency that is causing his thyroid to produce too little thyroid hormone. c. David could have a pituitary gland tumor. d. Too little information is given to determine the cause. Question 11 Correct 1.75 points out of 1.75 Flag question Question text Compounds released from cells that influence the same cell are called _____________. Select one: a. paracrine chemical messengers b. steroidal hormones c. neuropeptides d. tropic hormones e. autocrine chemical messengers Question 12 [Show More]

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