Download Cell Transport Review Worksheet

Cell Transport Worksheet
Complete the table by checking the correct column for each statement:
Statement
Isotonic
Hypotonic
solution
solution
Causes a cell to swell
Doesn’t change the shape of a cell
Causes osmosis
Causes a cell to shrink
Hypertonic
solution
Match the term with its correct description:
a. energy
f. active transport (x2)
b. facilitated diffusion
g. transport protein
c. osmosis
h. equilibrium
d. passive transport (x2)
i. channel protein
e. diffusion
_____ Transport protein that provides a tube-like opening in the plasma membrane through which
particles can diffuse
_____ Is used during active transport but not passive transport
_____ Particle movement from an area of higher concentration to an area of lower concentration
_____ A form of passive transport that uses transport proteins
_____ Particle movement from an area of lower concentration to an area of higher concentration
_____ The diffusion of water through a cell membrane
_____ The movement of substances through the cell membrane without the use of cellular energy
_____ Used to help substances enter or exit the cell membrane
_____ When energy is required to move materials through a cell membrane
_____ When the molecules of one substance are spread evenly throughout another substance to
become balanced
_____ When molecules move from areas of high concentration to areas of low concentration
Osmosis Practice Activity
Osmosis is the diffusion of water from an area of high concentration to an area of low concentration.
Only water moves in osmosis! The diagrams below show the concentration of water and salt inside
the cell and the concentration of water and salt surrounding the cell. Complete the sentences below
by comparing the concentration of the water inside the cell and the concentration outside the cell.
1.
5% NaCl
95% H2O
95% NaCl
5% H2O
a. Water will flow _____________________ (into
the cell, out of the cell, in both directions).
b. The cell will ______________________ (shrink,
burst, stay the same).
2.
5% NaCl
95% H2O
5% NaCl
95% H2O
a. Water will flow _____________________ (into the cell,
out of the cell, in both directions).
b. The cell will ______________________ (shrink, burst,
stay the same).
a. Water will flow _____________________ (into the
cell, out of the cell, in both directions).
3.
95% NaCl
5% H2O
5% NaCl
95% H2O
b. The cell will ______________________ (shrink,
burst, stay the same).
4. At which solution of concentration gradient is each cell diagram? (Hypotonic, Hypertonic, Isotonic)
a. _____________
b. ________________
c. ____________
General Review
1. Explain concentration gradient and diffusion with a picture or diagram. Also write a real-life
example of diffusion.
2. Discuss the similarities and differences between diffusion and osmosis.
3. What would happen to a cell if placed in the following solutions (describe and illustrate).
a. Isotonic solution:
b. Hypotonic solution:
c. Hypertonic solution:
4. Intravenous solutions must be prepared so that they are isotonic to red blood cells. A 0.9 %
salt solution is isotonic to red blood cells.
a. Explain what will happen to a red blood cell placed in a solution of 99.3% water and 0.7%
salt.
b. Explain what would happen to a red blood cell placed in a solution of 90% water and 10%
salt.
5. Draw and describe a plant cell in a hypotonic solution. How will a plant cell respond
differently than an animal cell? Why?
6. For the most part, plants and animal live in either a salt water environment or a fresh water
environment, not both. Explain this using the principles of diffusion.
7. Explain, using pictures and terms mentioned in this sheet, what happens when salt is poured
on a slug.
8. What is required for active transport to occur?