Part II: Cellular Respiration Flashcards
what is cellular respiration?
the reaction that cells use to release energy that is stored in chemical form
In the reaction for respiration there is no involvement of ______ or ______.
sunlight
pigment
cellular respiration is used by both
plants and animals
for respiration to occur cells must have
a constant supply of oxygen
single-celled organisms are able to exchange gases directly with
their environment
earthworms and amphibians exchange gases through
their skin
fishes exchange gases through their
gills
other vertebrates exchange gases through their
lungs
in larger organisms gas exchange is more effective when transported through
their circulatory system
what is carbon monoxide?
a colorless, odorless, tasteless, non-irritating gas produced as a result of combustion
carbon monoxide binds more readily to….
hemoglobin than oxygen
exposure to carbon monoxide prevents..
transport of oxygen to cells
changes in gas volume or pressure in a closed system containing a respiring organism represents the difference between
energy consumption and carbon dioxide production
what is the effect of oxygen consumption on pressure and volume?
decreases pressure and volume
what is the effect of carbon dioxide production on pressure and volume?
increases pressure and volume
potassium hydroxide was used to
absorb the carbon dioxide
why did the dye move towards the respiration chamber?
from the incoming O2 changing the pressure of the tube
how might the dye move away from the chamber?
heat to the bead chamber
which enzyme is needed specifically for splitting glucose to release electrons?
dehydrogenase
what is methylene blue?
dye that changes color based on whether its accepting or losing electrons
methylene blue is what color when accepting electrons?
colorless
methylene blue is what color when losing electrons?
blue
if carbon dioxide decreases, breathing rate also
decreases
why does hyperventilating help increase the time one can hold their breath?
it causes purging of CO2
rebreathing CO2 causes ventilation rate to
increase
increase in blood carbon dioxide is due to an increase in
cellular respiration
what are the two ways of measuring heart rate?
- using a stethoscope
2. counting pulse rate of a superficial artery
