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quiz 5 - 10:25 FAX 512 471 6135 BIOCHEM DIV —> ELECTR...

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Unformatted text preview: 10/05/2006 10:25 FAX 512 471 6135 BIOCHEM DIV —> ELECTR RESERVE I001 F06 (Ii-1369 QUIZ FIVE October 5, 2006 Name: elD Choose the one alternative that best completes the statement or answers the question. i. The Nat-Kl ATPase transporter is a . A) symport l3) uniport C) antiport D) airport E) none of the above 2. The symbol for the Miehaelis constant is . Answer Key A) km I3) Vu C) KM D) Ki E) none of the above 1. C 3. Competitive inihibitors have the following effects on KM and Vim: 2. C A) they alter the value of KM but not VW D) none o-l’lhe above 3_ A El) they alter the value ot‘Vnm but not KM E) all of the above 4. D C) they alter the value of both KM and Wm 5‘ C 6. B 4. In addition to enzymes, what other types of proteins demonstrate saturation kinetics? 7. A A) Ligandubinding proteins D) all of the above 8. )3 El) Certain types of membrane transport proteins E) none of the above 9. B C) Oxygen binding proteins 10. D 5, The carbohydrate portion of a membrane glycoprotein is most likely found: A) on the interior side of the cell membrane D) all of the above B) spanning the cell membrane E) none of the above C) on the exterior side of the cell membrane 6. Channels that allow ions to move down a concentration gradient are called: A) active transporters D) all of the above B) passive transporters E) none or" the above C) myelin sheaths 7. The fat-soluble vitamins include: A) Vitamin A, Vitamin D, Vitamin K D) all of'the above B) Vitamin A Vitamin D, Vitamin C E) none of the above C) Vitamin C, Vitamin 1-1, Vitamin K 3. A membrane is impermeable to charged molecules and does not allow passage of ions because ol“: A) the thickness of the membrane B) the largely hydrophobic nature of the membrane C) the ltyclrophilie nature of the membrane D) all ot‘the above E) none of the above ‘ 9. The plot of substrate concentration versus initial velocity results in a curve for a non-allostcric reaction. A) sigmoidal E) hyperbolic C) straight line D) cosine E) none of the above 10. The enzyme turnover number is described by the rate constant A) V0 13) 11m C) Ki D) km E) none of the above Version l 10/05/2006 10:25 FAX 512 471 0135 BIOCHEM DIV —> ELECTR RESERVE I002 F06 CH369 QUIZ FIVE October 5, 2006 Name: eID Choose the one alternative that best completes the statement or answers the question. I. The symbol for the Michaelis constant is . A) keel. B) VD C) KM D) Ki E) none of the above 2. A membrane is impermeable to charged molecules and does not allow passage of ions because oi“. A) the thickness of the membrane 13) the largely hydrophobic nature of the membrane C) the hydrophilic nature of the membrane D) all of" the above E) none of the above 3. In addition to enzymes, what other types of proteins demonstrate saturation kinetics? A) Ligand-binding proteins D) all of the above B) Certain types of membrane transport proteins E) none of the above C) Oxygen binding proteins 4. The plot of substrate concentration versus initial velocity results in a __ curve for a non-allosteric reaction. A) sigmoidal B) hyperbolic C) straight line D) cosine E) none of the above 5. The carbohydrate portion of a membrane glycoprotein is most likely found: A) on the interior side of the cell membrane D) all of the above B) spanning the cell membrane E) none ofthe above C) on the exterior side of the cell membrane 6. Channels that allow ions to move down a concentration gradient are called: A) active transporters D) all ofthe above B) passive transporters E) none of the above Ci) myelin sheaths ' 7. Competitive inihibitors have the following effects on KM and Vmaa: A) they alter the value of KM but not Vinnie D) none of the above 13) they alter the value of anx but not KM E) all of the above C) they alter the value of both KM and mei 8. The fat-soluble vitamins include: A) Vitamin A, Vitamin D, Vitamin K D) all of the above Answer Key B) Vitamin A, Vitamin D. Vitamin C E) none of the above C) Vitamin C, Vitamin H, Vitamin K 9. The enzyme turnover number is described by the rate constant A) W B) Km C) Ki D) km E) none of the above It]. The NEl+-K+ ATPase transporter is a . A) symport B) uniport C) antiport D) airport E) none of the above Eweflawewwr 0U>>mnwumn Version 2 10/05/2006 10:26 FAX 512 471 6135 BIOCHEM DIV —> ELECTR RESERVE I003 F06 Cl-l369 QUIZ FIVE October 5, 2006 Name: elD Choose the one alternative that best completes the statement or answers the question. i. The Fat-soluble vitamins include: A) Vitamin A, Vitamin D, Vitamin K D) all of the above E) Vitamin A, Vitamin D, Vitamin C E) none oi’the above C) Vitamin C, Vitamin H, Vitamin K 2. Competitive inihibitors have the following effects on KM and Van; A) they alter the value of KM but not V”1le D) none of the above El) they alter the value oli“ Vm but not KM E) all of the above C) they alter the value of both KM and anx 3. The symbol for the Mlchaelis constant is . A) km 13) Va C) KM D) Ki E) none of the above 4. The l“~la"—P-C+ ATPase transporter is a n . A) symport El) uniport C) antiport D) airport E) none of the above 5. Channels that allow ions to move doWn a concentration gradient are called: A) active transponers D) all of the above 3) 031550“3 trflHSPWtb‘rfi E) none of the above C) myelin sheaths 6. The plot of substrate concentration versus initial velocity results in a curve for a non-allosteric reaction. . A) sigmoidal B) hyperbolic C) straight line D) cosine E) none of the above 7. The enzyme turnover number is described by the rate constant A) Vo E) Km C) K] D) km E) none ot‘the above 8. The carbohydrate portion ot‘a membrane glycoprotein is most likely found: A) on the interior side of the cell membrane D) all of the above 13) spanning the cell membrane E) none ofithe above C) on the exterior side ofthe cell membrane 9. In addition to enzymes, what other types of proteins demonstrate saturation kinetics? A) Ligand—binding proteins D) all of the above B) Certain types of membrane transport proteins E) none of the above‘ C) Oxygen binding proteins Answer Key l0. A membrane is impermeable to charged molecules and does not allow passage of ions because of: A) the thickness of the membrane |_ A B) the largely hydrophobic nature of the membrane 1 A C) the hydrophilie nature ofthe membrane 3' C D) all of the above 4. C E) none o‘Fthe above 5‘ E 5. B 7. D 8. C 9. D 10. El Version 3 10/05/2006 10:26 FAX 512 471 6135 BIOCHEM DIV a ELECTR RESERVE I004 F06 (31-1369 QUIZ FIVE October 5, 2006 Name: elD Choose the one alternative that best completes the statement or answers the question. i. The enzyme turnover number is described by the rate constant A) Va B) Km C) Kr D) km E) none of the above 2. The fat-soluble vitamins include: A) Vitamin A, Vitamin D, Vitamin K D) all of the above 13) Vitamin A, Vitamin D, Vitamin C E) none of the above C) Vitamin C, Vitamin i-I, Vitamin K 3. The carbohydrate portion of a membrane glyccprotein is most likely found: A) on the interior side of the cell membrane D) all of the above 13) spanning the cell membrane E) none of the above C) on the exterior aide of the cell membrane 4-. The plot of Substrate concentration versus initial velocity results in a curve for a non—”illosteric reaction. A) sigmoidai B) hyperbolic C) straightline D) cosine E) none ofme above 5. The symbol for the Michaelis constant isd_ . A) km 5) Va C) KM D) Ki E) none of the above 6. Channels that allow ions to move down a concentration gradient are called: A) active transporters D) all of the above l3) passive transporters E.) none of the above C) myelin sheaths 7. A membrane is impermeable to charged molecules and does not allow passage of ions because of: A) the thickness ofrhe membrane 13) the largely hydrophobic nature of the membrane C) the hydrophilic nature of the membrane D) all of the above E) none ofthe above 3. in addition to enzymes, what other types of proteins demonstrate saturation kinetics? A) Ligand~binding proteins D) all of the above 13) Certain types ofmembrane transport proteins E) none of the above C) Oxygen binding proteins 9. Competitive inihibitors have the following effects on KM and Wm; A) they alter the value of KM but not Vmax D) none of the above Answer Key B) they alter the value of VW but not KM E) all of the above C) they alter the value of both KM and Vn‘iux 10. The Na+~K+ ATPase transporter is a . A) symport B) uniport C) antiport D) airport E) none of the above 13303.49???ij O>UWEDED>U ._. Version 4 10/05/2006 10:26 FAX 512 471 6135 BIOCHEM DIV —i ELECTR RESERVE .005 rue CHsss QUIZ FIVE October 5, 2006 Name: elD Choose the one alternative that best completes the statement or answers the question. i. The plot of substrate concentration versus initial velocity results in a curve for a nonuallosteric reaction. A) sigmoidal B) hyperbolic C) straight line D) cosine E) none ot‘the above 2. A membrane is impermeable to charged molecules and does not allow passage of ions because of: A) the thickness of the membrane B) the largely hydrophobic nature of the membrane C) the hydrophilic nature of the membrane D) all of the above E) none of the above 3. Channels that allow ions to move down a concentration gradient are called: A) active transporters D) all of the above El) passive transporters E) none of the above C) myelin sheaths 4. The carbohydrate portion of a membrane glycoprotein is most likely found: A) on the interior side ot“ the cell membrane D) all of the above 13) spanning the cell membrane E) none of the above C) on the exterior side of the cell membrane 5. The Ned-K" ATPase transporter is a . A) symport El) uniport C) antiport D) airport E) none of the above 6. The symbol for the Michaelis constant is . A) km E) Va C) KM D) K. E) none of the above 7. Competitive inihibitors have the following effects on KM and Vnmv: ' A) they alter the value of KM but not Vmsx D) none of the above 13) they alter the value ofVmsx but not KM E) all of the above C) they alter the value of both KM and Vm i 8. The fat—soluble vitamins include: A) Vitamin A, Vitamin D, Vitamin K D) all of the above B) Vitamin A, Vitamin D, Vitamin C E) none of the above C) Vitamin C, Vitamin H, Vitamin K E Answer Key 9. The enzyme turnover number is described by the rate constant A) Vo B) Km C) Ki D) km E) none of the above 10. in addition to enzymes. what other types of proteins demonstrate saturation kinetics? A) Ligand—binding proteins D) all of the above B) Certain types of membrane transport proteins 13) none ofthe above C) Oxygen binding proteins ¢©Wfl@?:“—PJFQT‘ UU>>DOOUJUJDJ ,_. Version 5 ...
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