Exam 4 Fall 2010

Exam 4 Fall 2010 - ZOOL 3204 Fall 2010 Exam 4, Form 001...

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Unformatted text preview: ZOOL 3204 Fall 2010 Exam 4, Form 001 PLEASE DO NOT START UNTIL TOLD TO DO SO! Once you are told to start, please do the following: 1. On the scan-tron, please write your name and student ID# (CWID) in the appropriate sections. After your student ID#, LEAVE A BLANK SPACE and then fill in your lab section number as follows: 01 = Tuesdays 8:30 06 = Wednesdays 8:30 11 = Thursdays 10:30 02 = Tuesdays 10:30 07 = Wednesdays 12:30 12 = Fridays 8:30 03 = Tuesdays 12:30 08 = Wednesdays 2:30 04 = Tuesdays 2:30 ‘ 09 = Wednesdays 6:30 05 = Tuesdays 6:30 10 = Thursdays 8:30 Be sure to fill in all of the corresponding circles. This will allow the TA’s to return your scores in lab. Grades also will be posted on D2L. 2. On the scan-tron, write “3204” for “Course Number”, and for “See”, write the Form # of this exam (“001”). 3. There are a total of 45 regular questions on this exam, and each question is worth 2 points unless noted otherwise (100 points total). There are also 2 extra credit questions, each worth 2 points. 4. If you have a question, please raise your hand and we will ' come to you. 5. When finished, please turn in the scan-tron TO YOUR LAB TA. You can keep this exam copy. 6. Good Luck! These instructions are given for good reason ~— failure to follow them could result in up to a 10 point reduction in your grade. *By taking this exam, you consent to OSU’s Commitment to Academic Integrity: “I will respect OSU’s commitment to academic integrity and uphold the values of honesty and responsibility that preserve our academic community.” Page 1 of9 1. (4 pts) You are examining the microscopic and molecular structure of slow-twitch~-.»oxidativefibers, a type of slow—twitch oxidative fibers. is n and the overall color is surprising because slow—twitch fibers have more : a: smooth muscle, smaller, more pale, myoglobin skeletal muscle, smaller, darker red, myoglobin 2. (4 pts) The diagram to the right depicts a typical action potential in a cardiac pacemaker cell. If the pacemaker cells that generate these action potentials are stimulated by the parasxrgpathetic nervous system, the neurotransmitter that is releasal is the pacemaker potential will rate: LID V l 3. (4 pts) The diagram to the right depicts: morepinephrine, increase, increase cetylcholine, decrease, decrease epinephrine, increase, decrease d. acetylcholine, increase, decrease \norepinephrine, decrease, decrease a. skeletal muscle contraction b. cardiac muscle contraction smooth muscle contraction d. none of the above skeletal muscle, larger, darkerrod, hemoglobin . smooth muscle, larger, more pale, hemoglobin 20— 0 ...i 9 E E -20~ I: 2 O . __ and the slope of 3 40¢ Fire—shop _ — _ ~ _ _ _ fl _ , causmg a(n) in heart E .0 E d) E .50.. . . <—————><————————-—>l Pacemaker Action potential potential tissue. Compared to fast-twitch glycolytic fibers, you notice that the diameter of the ‘ . This color difference isth I Sarcuplasmic reticulum ,1 Inactive MLCK EAR-*4“, Inactive myosln ATPase Page 2 of 9 I and is released from sarcoplasmlc' Time —-—* intracellular Ca“ concentrations increase when Ca2+ enters cell -' reticulum. cw sinus tu'calmudulln (CaM). . Cazt-calrnodulln a'ctlvates‘ , _, myosin light chain kinase (MLCK). MLCK phosphorylates light - chains In myosln heads and increases myosin ATPase activity. Active myosln crossbridges slide along actln and create muscle tension. V/Em otlons .1" éand voluntary} control ,5? mm 7 , 4. (4 pts) In the diagram to the right depicting regulation of breathing, the missing components are: gr “Mectullary , gchamoreceptorsgi. 1. limbic system 2. medulla and pons r 3. somatic motor neurons (expiration) 4. abdominal muscles 0 9 . cerebellum . hypothalamus . sympathetic neurons 3 YRdiaphragm 1. hypothalamus 2. medulla and pens 3. parasympathetic neurons 4. abdominal muscles 1. hypothalamus 2. medulla and pons 3. somatic motor neurons (inspiration) ‘4. diaphragm 5. (4 pts) Which of the following statements are TRUE regarding the diagram to the right: \1\Filtrati0n only occurs in “E” 2. “A” is the Bowman’s capsule with the glomerulus inside 3. Water but not solute reabsorption occurs in “C” 4. Solute but not water reabsorption occurs in “D” \5\Excretion occurs in both “A” and “E” a. all of the above are TRUE b, none of the above are TRUE . 1, 2, and 3 are TRUE @’ 3, and 4 are TRUE e. 3, 4, and 5 are TRUE 6. In the majority of cases, increasing muscle mass is due to MWHYOVN Page 3 of 9 i-Cai'otid snag-game _ tchemoreceptors Afferent sensory . neurons ' r 7. Which of the following are TRUE statements regarding smooth muscle: . it is stimulated by the somatic (motor) nervous system 't contracts using sarcomeres . contraction is regulated in part by the protein troponin L . ll of the above are TRUE 9 none of the above are TRUE / 8. During fetal development, blood in the right atrium is shunted to the through the : i .2 pulmonary artery, foramen ovale @ eft atrium, foramen ovale ‘s\aorta, arterial ligament ‘d\1eft atrium, arterial duct 9. Cardiac muscle: aKrequires input from the autonomic nervous system in order to contract . exhibits summation just like skeletal muscle ontains actin and m osin molecules just like skeletal muscle d all of the above \e‘none of the above #10. The diagram to the right depicts contraction of: . cardiac muscle smooth muscle 0. skeletal muscle 1. In the diagram to the right, “11” is pointing to the: a. right atrium b. left atrium c. right ventricle @eft ventricle I! 12. In the diagram to the right, blood in this chamber ‘ g/ (“12”) is pumped next into the: K“ ‘ight ventricle ' '- aorta c. vena cava d. pulmonaiy arter 13. Bradycardia is an abnormally slow heart rate: (its; WNWM‘QWWW be Page 4 of 9 14. In the diagram to the right, depolarization begins with the: a. Purkinje fibers b. AV node i, 0. SA node . left and right ventricles 15. In the diagram to the right, contraction of the proceeds top-down, whereas contraction of the proceeds bottom-up: a. SA node, AV node I b. AV node, SA node . ventricles, atria tria, ventricles 6. Which of the following describes sudden cardiac arrest: , esults in rapid loss of consciousness s typically preceded by referred pain—v ‘3’” Exis usually caused by ‘atri’zi‘l‘fibrillation tart—3% Vrfib 5d. all of the above describe sudden cardiac arrest \ none of the above describe sudden cardiac arrest W Pacemaker potentials: are autorhythmic do not possess a stable resting membrane potential occur in the SA node, for example all of the above p; none of the above 8. Which of the following is TRUE concerning heart rate: I / amnvw ‘ a 4" a. timulation by the sympathetic nervous system increases heart rate j stimulation by epinephrine heart rate¢ ‘c; stimulation by the vagus nerve increases heart rated] it. all of the above are TRUE \e.\none of the above are TRUE ' "“' 5 -» 19. Cardiac muscle fibers do not show summationng tetanus because: a their myosin ATPase functions too slowly “bu they do not possess sarcomeres - It they communicate by gapjunctions ' \ . . . . . " heir actlon potentlals are too long 111 duration / 20. In the diagram to the right, the structure labeled “20” is: a. an alter a vein 0. a capillary d. adipose tissue Page 5 of 9 21. Regarding the cellular elements in blood: .plateiets‘are the most numerous cellular element Q)!‘ C erythrocytes lack nuclei leukegztes contain hemog obin for O2 and C02 transport d. all of the above We. none of the above {- . Which of the following statements are TRUE about blood vessels: a. 11 blood vessels possess e ithelial endothe ' ' e ‘b\. all blood vessels possess smooth muscle NQ “\GMCQ Oloh‘l’ , ,r" all blood vessels possess one—way valves to maintain proper blood flow direction d. all of the above are TRUE 6. none of the above are TRUE 23. If your blood type is A—positive (+), which of the following blood types would likely lead to immune rejection if given to you in a transfusion: 1AA“ . A-ne a ive x z " a“ c. O~negativeruwvml ,\ 5“ . all of the above would lead to immune rejection 2* none of the above would lead to immune rejection 24. The first step of hemostasis is:\0\OQCl If coagulation ‘ ’1’ formation of a platelet plug ' conversion of fibrinogen to fibrin “Nasoconstriction’lfa (AUflhQ) YQAQWDQ 25. During hemostasis, the enzyme plasmin: \a\causes vasoconstriction causes coagulation dissolves clots d. produces an infarct 26. Concerning immune system pathology: @autoimmune diseases result from a failure to distinguish W overactive immune responses are out of proportion to the actual threat posed “ nmunodeficiencies can be primary» (genetic) or acquired ’63 .11 of the above ‘eKnone of the above 27. Which of the following is TRUE regarding leukocytes: WW) 5 ®the majority are produced in AV ieutrophils are the most common type \lymphocytes and plasma cells make macrophages \d‘ all of the above are TRUE \8‘ none of the above are TRUE 7328. Passive immunity: - / a is what we possess at birth "J @results when we receive antibodies made by another organismwfiw oflfifiiekmcge) )fl) Rdescribes the physical and chemical barriers of the bodywlél' d\results when we receive vaccines (e. g, flu shots)~— Page 6 of 9 29. Both hiccups and having “the Wind knocked out of you” result from temporary malfunction of the: “mlungs trachea iaphragm abdominal muscles i"er W-WWWWW-ww-m-~w:v~mww~wmw M mmummmm‘} g PRIMARY IMMUNE g I if RESPONSE E“? SECONDARYVIMMUNE; ‘5 a, E m ' RESPONSE <1) (D r o E Q E 1 c a c g 8 '5. 8 a Antibody % '5 Antibody as ., 0 V o .43 e E *5 < <1: 1 2 3 4 1 2 3 4 Time (weeks) W!“ W Tlme (weeks) WM 30. In the above figure, the secondary immune response is faster and larger than the primary immune /\ response due to: i he formation and storage of memory cells following the primary immune response J . increased phagocytosis due to innate immunity ' c. a pathological allergic response d. all of the above 6. none of the above a 31. Which of the following is TRUE regarding antibodies; é) IgA’s are found in external secretions (a IgG’s are the most common class of antibody antibodies possess two antigen-binding sites ll of the above are TRUE e. none of the above are TRUE [32. Pneumothorax: / *a\is a viral infection of the lungs is a bacterial infection of the lungs ccurs when a lung loses adhesion to the thoracic cavity Wall d\occurs when the trachea does not fully form during fetal development ' 33. In J _ diagram to the right, this is a Type 11 cell: ‘ a.A B c.C d.D 2A4. In the dia m to the right, this is a macrophage: a. A b. B d. D 35. Concerning respiratory system anatomy: the trachea has the largest diameter of any respiratOIy tract Z passageway . the alveoli are the main sites of gas exchange othebrflglgipieqs have more cross—sectional area than the trachea a» ll of the above \none of the above \ / ‘ : \ \ Which of the following is TRUE regarding micturition: I A a. it 6. In addition to removing wastes, kidneys: @ produce erythropoietin for regulating red blood cell synthesis ' for regulating sodium balance NM ‘3 produce selectively retain or excrete C02 to help maintain blood pH 11 of the above e\none of the above 37. Concerning renal (kidneY) PhySiOIOgy:%\W a; filtration is an active;seleeti~ve~preeess fb. excretion only occurs in the eabsorption is the movement of fluid and solutes from lumen to bloodstream / Cl. secretion only occurs in the ‘h produnsa\dota9mme%.wm Womb mooth musc e in the bladder is stimulated to contract by the parasympathetic nervous system _'~__________l contraction of the external sphincter of the bladder is accomplished by the sympathetic nervous system \stretch receptors activate when the bladder gets full, leading to external sphincter d. all of the above are TRUE 6. none of the above are TRUE 39. Which of the following is TRUE concerning nocturnal enuresis: it is usually the result of psychological problems “ can be treated with desmopressin . 't affects adults much more commonly than children Web all of the above are TRUE ‘e\none of the above are TRUE In the diagram to the right: L a step 2 depicts production of the filtration fraction Vts\step 3 depicts secretion 0. step 5 demonstrates that the majority of fluid that enters the nephron stays in the nephron d. all of the above ‘ e. none of the above 41. In response to increasing vasopressin (ADH) in the blood, the kidneys: V a, increase Nat reabsorption and Esecretion *1 increase water reabsorption c. decreaseNa+ reabsorption and‘Ks:L secretion (1. deeisease water reabsorption 6. none of the above 42. The diagram to the right depicts the mechanism of action of: a. eiythropoietin b. angiotensin I , asopressin ldosterone Page 8 of 9 Lumen ’ ’ i» oi distal * F cell of distal nephmn,. 1 tubule f r I, z ; ., Q; Translation andq—rr" protein synthesis \ ; 3.4.. New U r 7‘ ,7 5’ _ channels New pumps H 5 Proteins modulate ‘7 I Mexlsiing channels and pumps \( K‘ secreted "WW ‘1. AK“ *3 Naéreabsomed v—m—x‘ ’ 4 6 Na {WM_WW—W_ _......_.._.. V A 3. As discussed in class, surfactant protein-A: may be an important signal for initiating parturition (birth) \b. is responsible for asthmatic attacks V4 \c\is part of the immune system idx. is produced by nephrons 44. The process illustrated in the diagram to the right is called countercurrent exchange: 5 b. false 45. In the descending loop of Henle, is and is mostly picked up by the : \a. solute, secreted, interstitial fluid water, secreted, interstitial fluid water, reabsorbed, vasa recta solute, reabsorbed, vasa recta EXTRA CREDIT (2 pts. each) 46. In the lecture on the Friday before Halloween, Dr. Lovern: a. passed out candy kgave away a copy of the book “Why Evolution Is True” @romoted a cool band that would be playing at Cain’s Ballroom that weekend d. all of the above e. none of the above 47. In the lecture on Monday Nov. 15th right before this exam, Dr. Lovern: a. showed some pictures from his daughter’s school performance in “Aladdin” b said “hello” to his son in the lecture since he had done so for his daughter previously @alked about the upcoming Cowgirl soccer game against Duke d. was late to class because of a minor car accident 6. ended class a little early to go teach a mock lecture to the visiting “OSU Up Close” high school students Page 9 of 9 ...
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This note was uploaded on 01/22/2012 for the course ZOOL 3204 taught by Professor Staff during the Fall '11 term at Oklahoma State.

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Exam 4 Fall 2010 - ZOOL 3204 Fall 2010 Exam 4, Form 001...

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