Ch. 4-5 Study Questions

Ch. 4-5 Study Questions - Ch 4 Study Help Questions 1 2 3 4...

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Ch. 4 Study Help Questions 1. Name the three primary types of driving forces. 2. How do electrical driving forces arise?  How do they work? What is membrane potential?  3. Which is slightly negatively charged, intracellular fluid or extracellular fluid? 4. What is the average cell membrane potential? 5. What affects direction and magnitude of an electrical driving force? 6. How is it calculated? 7. How is rate of transport measured? 8. What three factors influence rates of simple diffusion? 9. What affects membrane permeability?  How? What has the greatest impact? 10. How do carriers act in facilitated diffusion?  Explain the process.  What induces  conformational change? 11. What influences net flux in facilitated diffusion? 12. What three factors affect the rate of facilitated diffusion? 13. What is the difference between facilitated diffusion and diffusion through channels?  Which molecules are common to each? 14. What’s the difference between a carrier protein and a channel with binding sites?  Between a carrier and a pump? 15. How do membrane proteins in PAT function? 16. Describe the pump in 5 steps.  What happens to the pump’s binding site’s affinity as it  changes faces? 17. What is Secondary Active Transport?  What are the two different types?  Give 1 example 
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Ch. 4-5 Study Questions - Ch 4 Study Help Questions 1 2 3 4...

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