An aviator is flying at 30,000 ft where the barometric pressure is 226 mm Hg. He is breathing 100% oxygen, his alveolar PCO2 is 40 mm Hg, and his alveolar water vapor pressure is 47 mm Hg. What is the alveolar PO2 of the aviator (in mm Hg)? (Assume that the respiratory quotient is equal to 1.)

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#Question id: 12035

#7. System Physiology – Animal

When the digestion and absorption of organic carbohydrates results in more energy-rich molecules than are immediately required by an animal, the excess is ________.

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#Question id: 2262

#2. Cellular Organization

Ribosomes are made up of ____ subunits.

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#Question id: 813

#1. Molecules and their Interaction Relevant to Biology

Which of the following does NOT impose limits on protein folding?

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#Question id: 24002

#Aptitude

Which duties would you like to be carried out by the monitor?

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#Question id: 5211

#11. Evolution and Behavior

Why might the cricket genome have 11 times as many base pairs than that of Drosophila melanogaster?