Biology

A solution contains 0.0000001(10-7) moles of hydroxyl ions [OH-] per liter. Whic

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What is the pH of a 1 millimolar NaOH solution? A) pH 3 B) pH 8 C) pH 9 D) pH 10

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Consider two solutions: solution X has a pH of 4; solution Y has a pH of 7. From

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Carbon dioxide (CO2) is readily soluble in water, according to the equation CO2

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Increased atmospheric CO2 concentrations might have what effect on seawater? A)

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How would acidification of seawater affect marine organisms? A) Acidification wo

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If the cytoplasm of a cell is at pH 7, and the mitochondrial matrix is at pH 8,

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Many mammals control their body temperature by sweating. Which property of water

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The bonds that are broken when water vaporizes are A) ionic bonds. B) hydrogen b

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Which of the following is a hydrophobic material? A) paper B) table salt C) wax

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We can be sure that a mole of table sugar and a mole of vitamin C are equal in t

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Some bacteria are metabolically active in hot springs because A) they are able t

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Which of the following membrane activities require energy from ATP hydrolysis? A

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A bacterium engulfed by a white blood cell through phagocytosis will be digested

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Which of the following processes includes all others? A) osmosis B) diffusion of

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According to the fluid mosaic model of membrane structure, proteins of the membr

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A patient has had a serious accident and lost a lot of blood. In an attempt to r

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In the small airways of the lung, a thin layer of liquid is needed between the e

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If the sodium ion concentration outside the cell increases, and the CFTR channel

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In receptor-mediated endocytosis, receptor molecules initially project to the ou

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The difference between pinocytosis and receptor-mediated endocytosis is that A)

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Familial hypercholesterolemia is characterized by which of the following? A) def

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White blood cells engulf bacteria through what process? A) exocytosis B) phagocy

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An organism with a cell wall would most likely be unable to take in materials th

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Several epidemic microbial diseases of earlier centuries incurred high death rat

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