Topic 16: Functional Organization of the Endocrine System • BIO201_MH_V3em • Topic 16: Functional Organization of the Endocrine Syst

Topic 16: Functional Organization of the Endocrine System • BIO201_MH_V3em • Topic 16: Functional Organization of the Endocrine Syst Started on Saturday, April 15, 2023, 12:59 PM State Finished Completed on Saturday ...

Topic 16: Functional Organization of the Endocrine System • BIO201_MH_V3em • Topic 16: Functional Organization of the Endocrine Syst Started on Saturday, April 15, 2023, 12:59 PM State Finished Completed on Saturday, April 15, 2023, 1:35 PM Time taken 35 mins 33 secs Grade 35.00 out of 35.00 (100%) Question 1 Correct 1.75 points out of 1.75 Flag question Question text Which of the following statements is NOT true? Select one: a. The hypothalamus is important to both the nervous and endocrine systems. b. Both the nervous and endocrine systems may utilize the same chemical molecule. c. Some neurons secrete hormones. d. Both the nervous and endocrine systems respond quickly and are active for a long time. Question 2 Correct 1.75 points out of 1.75 Flag question Question text Once a lipid-soluble hormone is conjugated in the liver Select one: a. its half-life is increased. b. it can be more quickly eliminated from the body. c. it can be stored for later use. d. it is actively transported into cells. e. it is more slowly eliminated from the body. Question 3 Correct 1.75 points out of 1.75 Flag question Question text All of the following are reasons why some hormones need assistance to travel in the blood except Select one: a. They are small enough to be easily digested by blood enzymes. b. They are easily filtered from the blood into the kidney tubules. c. They have low solubility in blood plasma due to their chemical nature. d. They cannot dissolve in the blood because they are water-soluble. Question 4 Correct 1.75 points out of 1.75 Flag question Question text Steroid hormones Select one: a. bind to membrane receptors. b. diffuse easily through the plasma membrane. c. act by activating cAMP. d. are inactivated by phosphodiesterase. e. are water soluble. Question 5 Correct 1.75 points out of 1.75 Flag question Question text Hormones are intercellular chemical signals that Select one: a. are secreted into the external environment where they act. b. affect only non-hormone producing organs or tissues. c. help coordinate growth, development and reproduction. d. operate primarily by positive feedback. Question 6 Correct 1.75 points out of 1.75 Flag question Question text Which of the following is a regulatory protein associated with membrane-bound receptor molecules? Select one: a. ATP b. calcium c. M protein d. G protein e. DNA Question 7 Correct 1.75 points out of 1.75 Flag question Question text All of the following chemical messengers may be listed in multiple functional classes except Select one: a. Eicosanoids b. Epinephrine c. Prostaglandins d. Acetylcholine Question 8 Correct 1.75 points out of 1.75 Flag question Question text In general, lipid-soluble hormones exhibit which type(s) of hormone secretion pattern(s)? Select one: a. chronic hormone secretion b. chronic and acute hormone secretion c. acute and episodic hormone secretion d. episodic hormone secretion e. chronic and episodic hormone secretion Question 9 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 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.