more final Flashcards
1
Q
symport
A
two molecules one direction
2
Q
antiport
A
two molecules two directions
3
Q
uniport
A
one molecule one direction
4
Q
freshwater has what type of regulation
A
hyperosmotic
5
Q
seawater has what type of regulation
A
hyposomotic
6
Q
elasmobranch urea absorption
A
Na+ is urea co transporter
reabsorption of almost all filtered urea
7
Q
three major strategies of ion an osmoregulation in sharks
A
- retain solutes (gills, kidney, urea reab)
- do not drink
- special secreting gland
8
Q
major strategies of ion and osmoregulation in teleosts and lampreys
A
- impermeable tegument
- drink salt water
- active Na+ and Cl- extrusion via saltwater monocytes
- kidneys role limited to excretion of toxic
9
Q
osmoconformer
A
blood is isosmotic with seawater
