If the chloride shift did not occur across the RBC membrane:a
oxygen would not be able to bind to hemoglobin.
b. carbon dioxide would build up in the tissues.
c. bicarbonate ions would build up in the blood cells.
d. negative ions would build up in the plasma.
e. the Bohr effect would be blocked.
D
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Why is the absence of atmospheric oxygen (O2) so important to the Oparin-Haldane hypothesis?
a. Oxygen is corrosive and thus would have degraded many of the metallic compounds on the surface, releasing toxic gasses into the new atmosphere. b. Oxygen is more reduced than hydrogen gas, methane, or ammonia. c. Oxygen would have supported microorganisms that help chemical decay proceed. d. Oxygen is able to reverse reactions by removing electrons and hydrogen from organic molecules, thus destroying the first organic compounds as quickly as they developed. e. Oxygen would have caused multiple explosions, converting chemical energy into heat energy and rendering that energy unavailable for driving the synthesis of organic molecules.
Glucose and fructose ____
a. form rings with the same number of carbon atoms b. have two oxygen atoms as part of their ring structure c. have identical functional groups d. contain the same number of hydrogen atoms and hydroxyl groups e. form the same polysaccharide molecule
Which of the following pollutants is generally stored in dry locations because they remain a potential problem for thousands of years?
A) radioactive waste B) PANs (peroxyacyl nitrates) C) CFCs D) heavy metals E) gasoline and oil
The arguments supporting spontaneous generation were finally disproved by
A) Louis Pasteur. B) Francesco Redi. C) Rudolf Virchow. D) John Needham. E) Lazzaro Spallanzani.