BIO ENG 110 Study Guide - Midterm Guide: Skeletal Muscle, Sinoatrial Node, Clinical Urine Tests
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Write your name and sid on the top of each page! If you need extra space, use the back of the sheet. Calculate the ratio of the diffusion coefficient (d) and permeability (p) of a2+ to x- in water at 37c. (10 pts: suppose one chamber contains a 100 mm ax2 solution and the other chamber contains a. 15 mm ax2 solution (both at 37 c), and the membrane is permeable to water but only partially permeable to a2+ and x-. Which of these five properties (tbw, icf/ecf volume and osmolarity) is the thirst response most sensitively tuned to? (10 pts) Sid: consider a lipid vesicle that is filled with a 10 mm solution of nacl and bathed in a solution of 100 mm nacl. Explain this directionality, incorporating a specific molecular mechanism in your answer. (5 pts) Sid: consider a physical examination and cardiac ultrasound that give the following results:
