E4: CH 18 Flashcards
gas exchange from high to low concentrations happens at the ___ interface
alveolair
what does cellular respiration produce
CO2
partial is equal at what points
points with outside contact
high partial pressure = high ___
concentration
diffusion is fast when the ____ ____ difference is higher
concentration gradient
normal artery pH
7.4
blood pH is heavily ___
buffered
blood pH doesn’t change because of what
bicarb pressure in blood acts as a buffer
what molecule acts as a buffer in the blood
bicarb
hypoxic is ___ O2
low
anemic is low O2 ___ to hemoglobin
bound
Aschemic is ___ blood flow
low
histo- means ___ O2 delivery
prevented
diffusion in the blood occurs because
shared basement membranes with capillaries
type 1 alveolar cells are made of __ cells
squamous