TRANSCRIPTION AND REGULATION QUIZ

Histidine+/histidine

H2PO4-/HPO42-

All of these

H2CO3/HCO3-

contains at least some polar covalent bonds

does not dissolve well in water

should act as a good buffer for acids and bases

is probably held together by noncovalent bonds

are independent of the functional groups

require an enzyme in all cases

All of these

are the reactions of the functional groups

methanol

ethanol

butanol

octanol

1 x 10-7

5 x 10-7

7

7 x 10-7

temperature of buffer components

concentration of the conjugate base to the weak acid

molar concentration of the buffer components

both (a) and (b)

oxygen and a phosphate

oxygen and/or nitrogen and are acidic

nitrogen and a phosphate

oxygen and/or nitrogen and are polar

acids are polar molecules and bases are not

bases are polar molecules and acids are not

acids donate hydrogen ions in water while bases accept hydrogen ions

bases donate hydrogen ions in water while acids accept hydrogen ions

covalent bonds

hydrogen atoms

hydrogen bonds

carbon atoms

electronegativity

number of double bonds

number of neutrons gain

number of protons released