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Unit 3 Exam Review Supplemental Instruction Iowa State University Leader: Course: Instructor: Date: Paige Stieneke BIOL 256 Dr. Karri Haen March 25, 2013 1. Cushing’s Syndrome and Addison’s Disease results due to the imbalance of the in the following hormone: a. Testosterone b. Thyroid c. Cortisol d. Glucagon e. Melatonin 2. Which of the following classes of hormones can enter a cell through direct gene activation? a. Steroids b. Peptides c. Biogenic Amines d. Kinases 3. Which of the following is NOT a tropic hormone? a. Growth hormone b. Prolactin c. Thyroid-Stimulating Hormone d. Adrenocorticotropic Hormone e. Luteinizing Hormone 4. Glucocorticoid is to cortisol as mineralcorticoid is to: a. Androgens b. Epinephrine c. Norepinephrine d. Somatostatin e. Aldosterone 5. Calcitonin and Parathyroid Hormone both control the level of calcium in the blood. ____ promotes calcium withdrawal; _____ promotes bone mineralization a. Calcitrol, calcitonin b. Calcitonin, parathyroid c. Parathyroid, calcitrol d. Parathyroid, calcitonin 6. True or False: The posterior pituitary is not glandular tissue (it’s neural tissue, the anterior pituitary is glandular but both controlled by Hypothalamus by releasing/inhibiting hormones) 7. Rigor mortis occurs because: Supplemental Instruction 1060 Hixson-Lied Student Success Center 294-6624 www.si.iastate.edu a. b. c. d. Proteins are breaking down, thus preventing a flow of calcium ions The cells are dead ATP required to detach myosin from actin molecules are depleted Sodium ions leak out of the muscle 8. The number of muscle fibers in a contracted state in an otherwise relaxed muscle is known as its: a. Refractory period b. Muscle tone c. Muscle twitch d. Action potential 9. Mild exercise causes skeletal muscles to use ____ (primarily) for their energy needs. a. Fatty acids b. Glucose c. Glycogen d. Creatine phosphate 10. Type I fibers are ____ in color and are ____. a. White, fast b. White, slow c. Red, fast d. Red, slow 11. Immediate following the arrival of the stimulus of a skeletal muscle there is a short period called the ___ period during which calcium ions are released from the terminal cisterae. a. Refractory b. Contraction c. Latent d. Relaxation 12. Which provides a fast way to replete ATP in exercising muscle? a. Pyruvate b. Creatine phosphate c. Glucose d. Glycogen 13. Which of the following is the type of hemoglobin that binds to carbon dioxide? a. Cyanohemoglobin b. Carboxyhemoglobin c. Carbaminohemoglobin d. Deoxyhemoglobin e. Oxyhemoglobin Supplemental Instruction 1060 Hixson-Lied Student Success Center 294-6624 www.si.iastate.edu 14. James has a hematocrit of 62%. This is: a. Abnormally low b. Normal c. Above normal 15. Which is NOT a normal plasma protein? a. Hemoglobin b. Albumin c. Globulin d. Fibrinogen 16. The least abundant human leukocytes are the: a. Neutrophil b. Eosinophil c. Basophil d. Lymphocyte e. Monocyte 17. Red blood cells do not consume any of the oxygen they transport because they: a. Convert oxygen to globin during transport b. Cannot remove oxygen from Heme once it is attached c. Use carbon dioxide in the respiratory chain instead of oxygen d. Do not have mitochondria e. Do not need to generate any ATP 18. Which is NOT a nutrient required for erythropoiesis? a. Folic acid b. Iodine c. Carbohydrate d. Iron e. Vitamin B12 19. Which of the following initiates the action potential in the heart? a. Sinoatrial Node b. Atrioventricular Node c. Purkinje Fibers d. Bundle of His 20. Which of the following waves represents repolarization of the ventricles? a. P wave b. QRS complex c. T wave d. U wave Supplemental Instruction 1060 Hixson-Lied Student Success Center 294-6624 www.si.iastate.edu 21. Cardiac ischemia can result in: a. An arrhythmia b. A heart murmur c. Patent ductus arteriosus d. A myocardial infarction 22. A Dicrotic notch refers to the: a. Brief rise in aortic pressure caused by the backflow of blood rebounding off the aortic semilunar valve b. Isovolumetric contraction where rising ventricular pressure causes the AV valves to close c. Ventricular filling where blood enters the atria and flows into the ventricles d. AV valves opening, and atria emptying blood into the ventricles 23. Which of the following hormones provides a positive chronotropic effect on the heart? a. Acetylcholine b. Norepinephrine c. Dopamine d. Serotonin e. Erythropoeitin 24. A heart rate above 100 beats per minute might indicate a. Bradycardia b. A normal heart rate c. Tachycardia 25. Normal cardiac output is about ___ L/min. a. 3.2 b. 4.2 c. 5.2 d. 6.2 26. The “lubb” sound occurs with the ___ valves closing, while the “dub” sounds occur as the __ valves close. a. Semilunar, atrioventricular b. Atrioventricular, semilunar c. Mitral, stenosis d. Stenosis, mitral 27. The myocardium requires ___ oxygen than skeletal muscle and has ___ mitochondria. a. Less, more b. More, less c. Less, less d. More, more Supplemental Instruction 1060 Hixson-Lied Student Success Center 294-6624 www.si.iastate.edu 28. Which of the following is the correct relationship between blood pressure (BP), cardiac output (CO) and peripheral resistance (PR)? a. CO = BP x PR b. BP = CO x PR c. PR = CO x BP d. BP = CO/PR 29. A drop in blood pressure stimulates the cardiovascular center to: a. Increase blood pressure and heart rate via epinephrine b. Increase blood pressure and heart rate via alcohol c. Decrease blood pressure and heart rate via nitric oxide d. Decrease blood pressure and heart rate via atrial natriuretic peptide 30. Initiation of the cardiac action potential in contracting cardiac muscle cells begins with: a. Opening voltage-gated slow calcium channels b. Opening voltage-gated slow potassium channels c. Opening voltage-gated fast sodium channels d. Opening voltage-gated fast chlorine channels 31. When neither anti-A or anti-B agglutinates with a patient’s blood, then their blood type is: a. A b. B c. AB d. O Supplemental Instruction 1060 Hixson-Lied Student Success Center 294-6624 www.si.iastate.edu