Answer Happy

A hyperosmotic solution
a)
can only be either isotonic or hypotonic
b)
is always hypertonic
c)
can only be hypertonic or hypotonic
d)
can only be either hypertonic or isotonic
e)
can be hypertonic, isotonic, or hypotonitic
In an animal cell, inhibition of Na+-K+ pump ________ cell
volume because __________.
a)
increases; Na+ accumulates inside the cell to increase
intracellualr osmolarity.
b)
doesn't affect; the same omsolarities are maintained by the
unequal distributions of Na+ and K+
c)
increases; intracellular osmolarity decreases as K+ leaves the
cells
d)
decreases; intracellular osmolarity increases with the
accumulation of K+
Osmosis is mediated by
a)
simple diffusion only
b)
passive and active transport
c)
faciliated diffusion and active transport
d)
facilitated diffusion only
e)
simple and facilitated diffusion