High Altitude SicknessThe following story illustrates the development of a highaltitude illness. You fly from Vancouver to Denver at1,525 meters. That afternoon you rent a car and drive upto the trailhead at 2,438 m. You hike up to your firstcamp at 2,745 m. The next day you hike up to 3,048 m.You begin to have a severe headache and feel nauseousand weak. If your condition worsens, you may begin tohave difficulty hiking.What causes altitude sickness? The concentration ofoxygen at sea level is about 21% and the barometricpressure averages 760 mmHg. As altitude increases, theconcentration remains the same but the number ofoxygen molecules per breath is reduced. At 3,658 m thebarometric pressure is only 483 mmHg, so there areroughly 40% fewer oxygen molecules per breath.Source:http://www.princeton.edu/~oa/safety/altitude.shtmlWhich of the following explains the problem with oxygenlevels at high altitude?Select one:a. Active transport of O₂ is with the concentrationgradientb. Oxygen diffuses from an area high pressureto an area of low pressurec. An increase in air pressure accompanies anincrease in altituded. Carbon dioxide levels are higher than oxygenlevels at high altitude Which blood vessel contains blood with the lowestconcentration of carbon dioxide?Select one:a. coronary arteryb. aortac. superior vena cavad. pulmonary veinOOO

Although the percentage of oxygen in inspired air is constant with altitude, the partial pressure of…

The following story illustrates the development of a high altitude illness. You fly from Vancouver to Denver at 1,525 meters. That afternoon you rent a car and drive up to the trailhead at 2,438 m. You hike up to your first camp at 2,745 m. The next day you hike up to 3,048 m. You begin to have a severe headache and feel nauseous and weak. If your condition worsens, you may begin to have difficulty hiking. What causes altitude sickness? The concentration of oxygen at sea level is about 21% and the barometric pressure averages 760 mmHg. As altitude increases, the concentration remains the same but the number of oxygen molecules per breath is reduced. At 3,658 m the harometric pressure is only 483 mmHg so there are

The following story illustrates the development of a high altitude illness. You fly from Vancouver to Denver at 1,525 meters. That afternoon you rent a car and drive up to the trailhead at 2,438 m. You hike up to your first camp at 2,745 m. The next day you hike up to 3,048 m. You begin to have a severe headache and feel nauseous and weak. If your condition worsens, you may begin to have difficulty hiking. What causes altitude sickness? The concentration of oxygen at sea level is about 21% and the barometric pressure averages 760 mmHg. As altitude increases, the concentration remains the same but the number of oxygen molecules per breath is reduced. At 3,658 m the harometric pressure is only 483 mmHg so there are

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter39: Animal Structure And Function: An Introduction

Section: Chapter Questions

Problem 5TYU

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