The process by which water is pulled up through the xylem columns of plants as it evaporates out of the leaves is called
A. respiration.
B. stomatization.
C. anhydration.
D. osmosis.
E. transpiration.
Answer: E
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Which would be TRUE if a metabolic poison were to completely inhibit the function of mitochondrial ATP synthase?
A. The pH difference across the inner mitochondrial membrane would decrease. B. The pH difference across the inner mitochondrial membrane would increase. C. ATP synthesis would increase. D. Oxygen consumption would decrease. E. The accumulation of NADH would increase.
The term amphipathic describes the characteristic of some molecules that have ________.
A) two polar regions B) only a single polar region C) both a polar and a nonpolar region D) no polar regions E) two nonpolar regions
Dr. Singh just returned from a year working in rural Africa for the World Health Organization, and now he has a small clinic in San Francisco. In both locations, he sometimes sees patients with chronic elevated IgE levels. Match the doctor's initial diagnosis for a patient in each location.
1. San Francisco 2. Africa ___ allergies ___ helminth infection
Carbon dating is a common method employed in dating certain kinds of fossils. It is based on the radioactive decay of an isotope of carbon (C14). Referring to the atomic number of carbon attained from the periodic table, how many neutrons does C14 have?
A. 2 B. 12 C. 4 D. 14 E. 8