Quiz 1 and 2 - 5 Question 1 Write a short definition of...

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Unformatted text preview: 5 Question 1: Write a short definition of the following three types 0! regulatilon: | PositiveFeedback“'qmpl.¥it5 fie. $1343, 57 posf‘Me/T Peinflflll’y ’7' 1 Negative Feedback— (~56ch the 3,3 4.] by neffive ffififirconeal M Omar {a l Feedforward MU 1‘1‘ beef: lo M aZHr‘lr'bff-Ml mm L)“: 5°47 ’flPFOéi‘ols" wkfi‘l’ ufll “ppm and moh’c! W}?! 5W M‘l/ "w "i" more” "Question no example of Feedforward regulation in the body. if one does Cmgyknfbr qr fee 54m? Fume everyday Me My l M7, rejwf an; gig/.1. Hc (Lyn-my: quf‘oa‘g cq’lt‘cf‘ in Malaria 53%, 4275-” #9 +214. Question 3: Draw lines matching the polymers in the column on the left with their monomer components on the right. Glycoge ucleotide l O 3 Protei . ino Acid /" DN ucose I 2' Question 4: Briefly describe the function of the following organelles: I Mitochondria: me ‘imrwmr or in: cart. r+ creek: M We ‘ . J Wail 5y 0H5! agil°rjsntllef Q: efil‘fil qfleacfyy r I Rough Endoplasmic Reticulum: 801k ”1% Mi: Med/A +WJ‘L “bosom?! i creeks: He ' an who ‘7ch ckgdg he? 11(30th M6171 Question 5: A cell has internal osmotic potential of 300 mOsm composed of 150' mOsm ions and 150 m0sm large molecules (proteins). It resides in a 300 mOSm fluid composed of 200 mOSm ions and 100 mOsm large molecules. Exposure to a ‘ toxin opens all the cells ion channels, allowing free flow of ions across the membrane; large molecules can still not cross the membrane. When the cell reaches its new equilibrium, what will its concentration of ions he? I>5HUFM Question 1: List the five major functions of the kidney ’) Ff/lf’f 396th”; m 5on ll bulmre rues/we: ,‘n mr(g.4,-..,.lwer; fans] 3} Escfrle M15195 2‘7; emboormb Lt] Create sludge {1mm Wed") when body 57-th 5h; 5) Comm] 1. load levels- Question 2: Compare the composition of the fluid in the Bowman’s capsule to the composition of the blood. 71a compoy'lrfin csfl PA"; A m tewMfl‘i aimle- 1‘1 595w», ”t m «I He blood, aw m, I’M“! M rem. mm fcns/ reclt‘ahJ “,4fo efc, 1/1, Question 3: Compare and contrast the change in serum levels and physiological effects of the following three hormones on sodium retention during an episode of low blood pressure: ' Vasopressin [ADH)— 1"” IDIMJ pmSSW‘C jIVf'S ‘M rhcfreicd 14-51)]! W W- Ingmar” fawn level; I Ald0§terone-'fl‘fr'hj lw (plan! If”: q/‘bfi’mnc Mamie: mum) NAM MSW/‘4 (Md MEMCJ ref-m lei/4'0 Atrial Natriuretic Peptide (Alli?)- 01PM) (w 5‘6 ”tenant, Afip Jammy, Shim l‘t‘ M’. sch " Jecf't‘ue} Men AMP mcrrqrej’ 5,15. [w 5/0“} [future Std/“1 that 01/7 #94 m c rem er, Question 4: Recall that filtrate entering the loop of Henle usually enters with osmolarity of 300 mOSm, reaching 1400 mOSm atv’fhe bottom of the loop and exiting at 100 mOSm. A diabetic has filtrate entering the loop of Henle with osmolarity 400 mesm. What does the extra solute consist of? What will the filtrate‘s osmolarity be at the bottom of the loop? What will it be at the- exit of the loop? What effect will this have on water resorption in the medullary collecting duct? 7% am ram 1'5 Skylar! Hmf we no! 96:016-ed/n’g17, . . l M the 12°47. ff {he $94-ch 03¢ He [top He “Inc/904;. ,3 JUL/ll lbfco ”an. Al fit an? {1(- orw/t"177 ’3 .100 8045.0 T71; wafer resorph‘cn debreasc} 0"- l‘he medqlqry £0!“th duct l ’"L ...
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