AMU BIOL 251 QUIZ 1.

Which of the following statements about insulin is true? A. Insulin acts as a transport protein, carrying glucose across the cell membrane. B. Insulin facilitates the movement of intracellular glucose transporters to the cell membrane. C. Insulin stimulates the breakdown of stored glycogen into glucose. D. Insulin stimulates the kidneys to reabsorb glucose into the bloodstream. E. Two of the above are true statements. The parathyroid glands are small structures located on the posterior thyroid gland that produce parathyroid hormone (PTH), which regulates blood levels. A. calcium B. adrenalin C. potassium D. thyroid hormone E. insulin What secretory cell type is found in the adrenal medulla? A. follicle cells B. oxyphil cells C. chromaffin cells D. beta cells E. neuroglial cells Hormones produced and released from sex organs include which of the following? A. estrogen and progesterone B. testosterone C. inhibin D. FSH and LH E. A, B, and C are all correct The hormones of the human body can be divided into which of the following major group(s)? A. Sex hormones B. CNS hormones C. Hormones derived from amino acids D. Hormones derived from lipids E. C and D above are correct. The signaling done by the endocrine system is accomplished by the use of chemicals called _. A. electrons B. hormones C. electrical signals D. transmitters E. action potentials Which of the following can result from hyperparathyroidism? A. increased bone deposition B. fractures C. convulsions D. low blood calcium levels E. All of the above are true. One of the major functions of the adrenal glands is to respond to . A. pain B. hunger and thirst C. light and dark D. stress E. low insulin levels The primary hormones produced by the ovaries are . A. Progesterone B. Prolactin C. Estrogen D. FSH and LH E. Testosterone The hormones of the human body can be divided into which of the following major group(s)? A. Sex hormones B. CNS hormones C. Hormones derived from amino acids D. Hormones derived from lipids E. C and D above are correct. The development of a goiter indicates that . A. the anterior pituitary is abnormally enlarged B. there is hypertrophy of the thyroid’s follicle cells C. there is an excessive accumulation of colloid in the thyroid follicles D. the anterior pituitary is secreting excessive growth hormone E. Both B and C are correct. Hormones regulate certain target cell responses. These can include which of the following? A. Sexual function B. Metabolism C. All of the above are correct. D. Fluid balance E. Growth and development of tissue The adrenal gland consists of an outer cortex of tissue and an inner medulla of tissue. A. glandular; connective B. fibrous; glandular C. glandular; nervous D. glandular; lymphoid E. nervous; fibrous The gonads produce what class of hormones? A. neurotransmitters B. amine hormones C. catecholamines D. peptide hormones E. steroid hormones The nervous system uses which of the following types of intercellular communication? A. Electrical and chemical B. Direct and chemical C. Electrical and hormonal