ch10 - Membrane Transport Matching A) B) C) D) E) F) G) H)...

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Membrane Transport Matching A) porins B) gap junctions C) symporter D) active E) ion channel F) secondary active G) channel-forming H) carrier I) passive-mediated J) uniporter K) simple diffusion L) anti-ion transport 1. ______ ionophores are transporters that bind the substance to be transported on one side of the membrane then diffuse through the membrane and release the substance on the other side. Ans: H Level of Difficulty: Easy Section: 10.2.A Learning objective: Passive-Mediated Transport 2. An example of nonmediated transport is ______. Ans: K Level of Difficulty: Easy Section: 10.1 Learning objective: Thermodynamics of Transport 3. The GLUT1 transporter mediates an example of _____ transport. Ans: I Level of Difficulty: Easy Section: 10.2.E Learning objective: Passive-Mediated Transport
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4. ______ are bacterial proteins consisting of a β barrel with a central aqueous channel. Ans: A Level of Difficulty: Easy Section: 10.2.D Learning objective: Passive-Mediated Transport 5. Connexin proteins form the basis of ______. Ans: B Level of Difficulty: Easy Section: 10.2.E Learning objective: Passive-Mediated Transport 6. A transporter that moves two substances simultaneously in the same direction is an example of a(n) __________. Ans: C Level of Difficulty: Easy Section: 10.2.E Learning objective: Passive-Mediated Transport 7. Gramicidin A is an example of a ______ ionophore. Ans: G Level of Difficulty: Easy Section: 10.2.C Learning objective: Passive-Mediated Transport 8. The Ca 2+ –ATPase mediates an example of ______ transport. Ans: D Level of Difficulty: Easy Section: 10.3.B Learning objective: Active Transport 9. The Na + –glucose transport system mediates an example of ______ transport. Ans: F Level of Difficulty: Easy Section: 10.3.D
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Active Transport 10. KscA is an example of a(n) _________. Ans: E Level of Difficulty: Easy Section: 10.2.C Learning objective: Passive-Mediated Transport Multiple Choice 11. Which of the following compounds would cross the membrane most rapidly by simple diffusion? A) water B) acetone C) hexane D) acetic acid E) methanol Ans: C Level of Difficulty: Easy Section: 10.1 Learning objective: Thermodynamics of Transport 12. What type of transport does not require the assistance of a membrane protein? A) simple diffusion B) facilitated diffusion C) passive transport D) active transport E) none of the above Ans: A Level of Difficulty: Easy Section: 10.1 Learning objective: Thermodynamics of Transport 13. Which statement does not describe the transport of ions by valinomycin? A) The transporter is a carrier ionophore. B) Transport may be active or passive. C) The transporter is exquisitely specific for K + ions. D)
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ch10 - Membrane Transport Matching A) B) C) D) E) F) G) H)...

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