MCDB 111 Su 2017 Section quiz 2B 8/17/17 Answer each question on your Scantron form. Make sure your name, perm, date, and MCDB 111 Summer quiz 2 appears on the answer form. Each correct answer is worth half a point. 1. Phosphorylation of troponin allows for contraction of which of the following? a. Smooth muscle b. Cardiac muscle c. Skeletal muscle d. b and c e. none of the above 2. Hypophysiotropic hormones a. are produced by the hypothalamus b. act on the posterior pituitary c. include adrenocortotropic hormone d. a and b e. a, b, and c 3. Calcium absorption from the intestine into the bloodstream is promoted by which of the following? a. Thyroid hormone b. Parathyroid hormone c. Epinephrine d. Insulin e. Cortisol 4. Basal metabolic rate is regulated primarily by a. Epinephrine b. Thyroid hormone c. Cortisol d. Growth hormone e. Insulin-like Growth Factor I (IGF-I) 5. Addison’s Disease is caused by a. Low T3/T4 b. High T3/T4 c. Cortisol deficiency d. An oxytocin-secreting breast tumor e. Growth hormone deficiency 6. Which of the following characteristics are shared by thyroid hormone and epinephrine? a. Both decrease plasma glucose levels b. Both are derived from the amino acid tyrosine c. Both function as neurotransmitters and hormones d. Both are essential for the body’s long term response to stress e. Both bind to cell surface receptors7. Which of the following is an example of gluconeogenesis? a. the formation of glucose from glycogen b. the conversion of fructose to glucose c. The formation of glucose from fatty acids d. The formation of glucose from pentose-1-phosphate e. all of the above 8. To which molecule does Ca2+ bind in order to facilitate smooth muscle contraction? a. myosin heavy chain b. myosin light chain c. troponin d. actin e. calmodulin 9. Oxygen debt describes a condition where a. the oxygen demand of skeletal muscle has exceeded the oxygen carrying capacity of myoglobin b. oxygen is required to rid the body of high levels of lactic acid resulting from muscle tissue glycolysis c. the hypothalamus secretes increased levels of dopamine in response to low plasma oxygen levels d. creatine phosphate becomes depleted in muscle tissue due to insufficient amounts of oxygen e. hormone release from the pituitary is suppressed due to low plasma oxygen levels 10. Overexpression of myostatin would most likely result in a. slower contractions of skeletal muscle fibers b. slower contractions of cardiac muscle fibers c. a decrease in skeletal muscle mass d. an increase in skeletal muscle mass e. none of the
View Full Document
Unlocking...