Buffer System

Front 1

buffer is consists of?

Back 1

weak acid and salt of that acid, which functions as a weak base

Front 2

how buffers prevent changes in pH?

Back 2

by converting strong acids and strong bases to weak acids and weak base

Front 3

strong bases/acids raise or lower pH? (more than weak)

Back 3

raise because they release H+ more readily

Front 4

most abundant buffer in intracellularfluid and blood plasma.

Back 4

plasma protein

Front 5

plasma protein net charge

Back 5

net negative charged and are capable of binding with H+ resulting to higher pH

Front 6

protein buffer what reacts as base and acid

Back 6

•carboxyl group release H+ when pH rises
-acid
•amino group accepts H+ when pH lowers
-base

Front 7

most important buffer of the plasma

Back 7

bicarbonate-carbonic acid system

Front 8

bicarbonate-carbonic acid system
formula and ratio

Back 8

HCO3-H2CO3
20:1

Front 9

primary extracellular fluid buffer

Back 9

bicarbonate-carbonic acid system

Front 10

bicarbonate-carbonic acid system
what is the base and the acid

Back 10

•bicarbonate-weak base
•carbonic acid- weak acid

Front 11

bicarbonate-carbonic acid system
what happens when there is excess H+?
equation? plus example

Back 11

bicarbonate (HCO3) functions as weak base removes excess H+
•HCO3 + H+ <> H2CO3(where H+ represents the acid in the blood)
•NaHCO3 + HCl <> H2CO3 + NaCl

Front 12

bicarbonate-carbonic acid system
dissociation of carbonic acid (H2CO3) eqn plus example

Back 12

•H2CO3 + OH <> HCO3- + H2O
•H2CO3 + NaOH <> NaHCO3 + H2O

Front 13

plays a role in plasma and red blood cells
formula?

Back 13

phosphate buffer system
• HPO4-H2PO4

Front 14

phosphate buffer system
components?

Back 14

•monohydrogen phosphate (HPO4)
•dihydrogen phosphate (H2PO4)

Front 15

phosphate buffer system
what acts as the acid and what acts as the base

Back 15

•weak acid- dihydrogen phosphate
•weak base- monohydrogen phosphate

Front 16

phosphate buffer system
buffering of strong acids eqn

Back 16

HPO4 + H <> H2PO4

Front 17

phosphate buffer system
buffering of strong bases eqn

Back 17

H2PO4 + OH <> HPO4

Front 18

plasma proteins involves?

Back 18

imidazole groups of histidine