WATER, PH AND MACROMOLECULES QUIZ

will always have a pH of 7

cause a decrease in pH when acids are added to them.

are rarely found in living systems

tend to maintain a relatively constant pH.

molecules

acids

ions

none of these

environmental effect

dielectric constant of the medium

relative concentration of acids and bases

concentration of salt

It is critical for many of the chemical processes found in living systems

All of these

Nonpolar substances like oils are not soluble in it

Polar substances that can form hydrogen bonds will dissolve in it

All of these

Imidazole

Indole

Guanidinium ion

ethanol

butanol

methanol

octanol

surround the ions because of their charge but do not form hydrogen bonds

form hydrogen bonds with the positively and negatively charged ions

share electrons with the ions to make polar covalent bonds

make nonpolar covalent bonds with the positively charged ions only

Karl Hooper

Otto Warburg

Theodor Kocher

Karl Landsteiner

1014 M

107 M

10-7 M

10-14 M

noncovalent

ionic

covalent

hydrogen