WATER, PH AND MACROMOLECULES QUIZ

oxygen and a phosphate

oxygen and/or nitrogen and are acidic

oxygen and/or nitrogen and are polar

nitrogen and a phosphate

carbon atoms

hydrogen atoms

covalent bonds

hydrogen bonds

number of protons released

electronegativity

number of neutrons gain

number of double bonds

Strong base

DNA

Phospholipid

Protein

Karl Hooper

Theodor Kocher

Karl Landsteiner

Otto Warburg

Imidazole

Indole

All of these

Guanidinium ion

are common elements in the molecules that make up living organisms

contain protons and neutrons in their atomic nuclei

All of these

can all form covalent bonds with other elements

only in combination with polyprotic bases

at pH values around any of their pKa's

at pH values around neutrality

if their concentration is kept low

are not important for the properties of water

form covalent bonds in ice

carry a partial negative charge

carry a partial positive charge

values less than 1

that cannot be used to buffer

pKa values greater than 2

been seldom found in living systems