1. Molecules tend to move from areas of ______________ to
areas of _______________. (select all that are correct).
a.
low pressure; high pressure
b.
low concentration; high concentration
c.
high concentration; low concentration
d.
high pressure; low pressure
2. How do cells maintain a state of homeostasis?
a.
By a constant exchange between intracellular and extracellular
environments
b.
By controlling the extracellular environment to create optimal
conditions
c.
By not letting molecules enter the plasma membrane
d.
By regulating the amount of water that enters and exits the
plasma membrane
3. What does membrane permeability depend on?
a.
Water, ions, and solubility
b.
Size, charge, and solubility
c.
Hypertonic, isotonic, and hypotonic
d.
Size, charge, and permeability
4. Osmosis is a type of diffusion specific to water, where water
moves from areas of high water concentration to areas of low water
concentration
True
False