Which of the following statements regarding the data presented in the figure is

Question

Which of the following statements regarding the data presented in the figure is false? A. Blood circulation to muscle was significantly reduced during the dives. B. Circulating blood oxygen continued to be made available from oxygen Meri blood ?, in muscle lactic acid during the dives. myocardium remained higher than C.Muscles eventually accumulated o, D. Oxygen supplies for the brain and muscle during the dives. E. Muscles switch to anacrobic 10 metabolism at some point during the dives. Length of dive (min) a. Ligand-gated channels on the postsynaptic membrane open and K' and Na both move through these channels in opposite directions. Why then do we measure depolarization on the postsynaptic membrane? A. Na' has a much stronger driving force into the cell B. K has a much stronger driving force into the cell C. Na" has a much stronger driving force out of the cell D. K has a much stronger driving force out of the cell E. K moves out of the cell, then back into the cell resting in their dwellings-one at sea level and one at 4500 m altitude. The O; partial pressure would likely be the most similar in A. their venous blood B. the ambient air in each of their locations. C. their alveolar gas. D. Suppose you are comparing blood samples and samples of alveolar gas from two native Peruvians D. their arterial blood. E. the air in their tracheas. crustaceans. It gets much of its water as preformed and metabolic water from its food. However, it needs more water than its food provides, and the amount of additional water it needs increases as it flies more, because flight greatly increases its rate of evaporative water loss. The bat can concentrate NaCI to about 620 mM in its urine. The concentration of Na in seawater is 470 mM and the concentration of Cl in seawater is 548 mM. Which of the following are true? (Mark all that apply). A. For H:0 to be acquired by drinking seawater, all the ions in the seawater (including Mg2 and O. The bat, Pizonyx vivesi, lives on desertislands in the Gulf of Califormia, where it subsists on fish and SO,, not just Na and CH) must be more concentrated in the urine than in the seawater B. They could drink seawater, but it would eventually cause them to lose body water. C. They could not drink any seawater, and if they did they would rapidly dehydrate. D. The bats would be able to maintain their water balance by drinking seawater The evolution of higher metabolic rates in a species of freshwater fish would increase the challenge of maintaining body water balance because (Mark all that apply) A. their increased metabolism would cause them to lose more heat to the water and lower their body temperatures.

Explanation / Answer

37. false statement- circulating blood oxygen continued to be made available from oxygen in muscle. (option B)

38. sodium ions have a much stronger driving force into the cell (option A)

39. at higher altitudes, the increase in 2,3 bis-phosphoglycerate in RBC causes shifting of oxygen dissociation curve towards right. 2,3-BPG binds with oxygenated hemoglobin and does not allow hemoglobin to bind to oxygen. The oxygen partial pressure would likely to be the most similar in their venous blood (option A)

40. they could drink seawater, but it would eventually cause them to lose body water. (option B)

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