osmoregulation Flashcards
define osmoregulation
the regulation of water and salts outside the cells
define osmolytes- refer to turgidity
regulators of turgidity in cells
define osmoconformer- refer to marine organisms
internal conditions are similar to external- takes less energy to keep them constant
what is the salinity of marine environments?
3.5%
what kind of urine does hypotonic regulation produce?
when urine has a lower ion concentration than surroundings
what kind of urine does hypertonic regulation produce?
when urine has a higher ion concentration than surroundings
does chloride follow other ions passively?
YES
what is meant by a bipolar cell membrane
two layers with differing channels
which way does the BASAL layer of the membrane face?
inward
which way does the APICAL layer of the membrane face?
outward