Biological Solutions
Notes
Objective: You will be able to explain the
differences between hypotonic,
hypertonic and isotonic solutions and
describe their effects on cells.
Itinerary:
1. Powerpoint (definitions)
2. Potato experiment demonstration
3. Celery demonstration
Word
Hypotonic
solution
Definition
a. Greater
concentration of
solute inside cell
than outside
Picture
Word
Hypotonic
solution
Definition
b. Water leaves
solution and
goes into the
cell.
c. Cell will get
bigger and can
burst!
Picture
Word
Definition
Hypertonic
solution
a. Greater
concentration of
solute outside of
cell than inside
Picture
Word
Hypertonic
solution
Definition
b. Water leaves
cell and goes into
solution. Cell will
shrivel up.
c. Can lead to
dehydration
Picture
Word
Isotonic
solution
Definition
a. Concentration
inside cells is
equal to that of
the solution
b. Cell is at
equilibrium
Picture
Which is which?
Label each one as: hypotonic, hypertonic or isotonic
1.
2.
3.
Which is which?
Label each one as: hypotonic, hypertonic or isotonic
1.
2.
3.
Type of solution
Definition
What happens to
cells in this
environment?
Hypotonic
Greater
concentration of
solute inside cell
than outside
Water goes into
the cell.
Cell will get bigger
and can burst!
Hypertonic
Greater
concentration of
solute outside of
cell than inside
Water leaves the
cell.
Cell will get shrivel
up and dehydrate
Isotonic
Concentration inside Cell is at
cells is equal to that equilibrium
of the solution