This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: PSL 431 Cell Physiology Practice Exam 1 Fall 2006 1. The Nernst potential for ion Y+ across the plasma membrane is -130 mV. Therefore A. this ion is considerably more concentrated in the ECF than the cytoplasm. B. there is a large concentration force driving Y+ out of the cell. C. opening a pathway for Y+ would cause membrane depolarization. D. this description fits the conditions for Y + being Na+. E. None of the above are true. 2. In which of the following is a transport protein correctly matched with its transport function? A. ryanodine channel-- efflux of Ca++ from cardiac muscle cells B. glucose/Na+ symporter-- glucose uptake by kidney cells C. CFTRNa+ efflux in cystic fibrosis D. Na+ K+ pump paracellular transport of Na+ E. nAchRinflux of Ca++ during long term potentiation....
View Full Document
- Spring '07