Complex IV of the electron and H+ transport chain is also known as which of the following?
A) cytochrome oxidase
B) cytochrome reductase
C) ubiquinone
D) none of these
A
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What is the hydroxide ion concentration in an aqueous solution when the hydronium ion concentration equals 1 × 10-10 moles per liter?
A) The concentration of hydroxide ions is 1 × 10-10 moles per liter. B) The concentration of hydroxide ions is 1 × 10-4 moles per liter. C) The concentration of hydroxide ions is 1 × 10-2 moles per liter. D) The concentration of hydroxide ions is 1 × 10-6 moles per liter.
In 19th century, geologists developed the geologic time scale using
a. fossils. b. radiometric dating techniques. c. absolute ages. d. the principle of uniformitarianism.
Each year, scientists measure the magnitude of how many earthquakes?
A. 100 B. 1,000 C. 25,000 D. 200,000 E. 1,000,000
Which particle has a negative electric charge?
a. Electron b. Coulomb c. Isotope d. Neutron