Lab 10 Flashcards
overall equation for aerobic respiration
C6H12O6 + 602 + 6H20 => 6CO2 + 12H2O + 36ATP
to calculate the rate of respiration you can measure the
oxygen uptake or carbon dioxide release per unit of time
if carbon dioxide is relased by respiration in an aqueous environment, (x) is produced
carbonic acid
equation to make carbonic acid
CO2 + H2O => H2CO3
carbonic acid dissociates into
bicarbonate ion and hydrogen ion
dissociation of carbonic acid equation
H2CO3 => HCO3- + H+
definition of acid
it dissociates in water
air is x% O
21 percent
air is x% N
78 percent
because of the release of hydrogen ions into the solution, the PH will be
lowered, more acidic
if CO2 were to be removed from the aqueous environement, the pH would
rice, more basic
measuring the changes in the pH in an aqueous solution can be used to determine
the amount of CO2 released per unit of time and thus the respiration rate
the method used to measure the amount of an acid added to or removed from a solution is called
titration
to titrate, there must be an (x) and a weak acid or base of known concentration
indicator
ex: a dye that will change color and changing pH
indicator
the concentration of acids or bases is commonly termed the
normality of the solution
colorless occurs below
8.5
it is necessary to quantify the amount of CO2 that brings about a decrease in pH to
measure respiration rates
the expiremental indicator was
phenolphthalein, which is pink above 8.5
each hemoblobin can transport
4 iron
CO2 connects to
polypeptide
carbonic acid
H2CO3
integument
skin
gas exchange only occurs on (x) surfaces
moist
much lower O
underwater
mostly inside respiration (lungs)
invagination
ray finned fish
actinopterygii
