Chapter 3 - Water

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Buffers

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7 Terms

1

Buffers

________ are essential for keeping pH levels in live cells generally constant.

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2

Acids

________ raise the relative concentration of H+ ions in a solution, whereas bases raise the concentration of OH- ions in a solution.

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3

Biological systems

________ can be extremely sensitive to pH fluctuations.

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4

Covalent bonds

________ (shared electrons) exist between the oxygen and hydrogen atoms in water.

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5

Oxygen

________ has a high electronegativity (ability to attract electrons), whereas hydrogen has a low electronegativity.

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6

Water molecules

________ are "sticky, "exhibiting cohesive and adhesive properties.

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7

Pure water

________ will dissociate and create equal amounts of H+ and OH- ions, yielding a pH of 7.

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