Cellular Transport Review Worksheet
Name:____________________________
Date:_____________________________
Vocabulary Review
Assignment #:_________Block:________
Write the word from the WORD BANK in the correct blank below.
diffusion
osmosis
active transport
passive transport
endocytosis
exocytosis
1. The diffusion of particles through protein doorways in the cell membrane; does NOT require the cell to use
energy. _________________ _____________________________
2. The diffusion of water across a cell membrane. _____________________________
3. The process in which a cell membrane surrounds a very large particle, encloses it in a vesicle, and brings it
into the cell; uses energy. __________________________________
4. The movement of particle through proteins in the cell membrane against the direction of diffusion; requires
cells to use energy (ATP). __________________________________
5. The movement of particles from an area of high concentration to an area of low concentration.
________________________
6. The process used to remove very large particles from a cell; uses energy (ATP). ________________________
II. Complete the Chart
Place the following terms in the correct place on the chart:
diffusion
active transport
endocytosis
osmosis
USES ENERGY
III. Complete the Picture
Draw an arrow to show the direction the molecules will move.
passive transport
USES NO ENERGY
exocytosis
IV. Fill in the Blanks
Complete the sentences by filling in the blanks.
1. In diffusion, molecules move from areas of ____________ concentration to areas of ____________
concentration.
2. Diffusion continues until the concentration on both sides of the membrane is ________________.
3. Diffusion occurs __________________ in high temperatures.
4. Cells will shrink (known as plasmolysis) from loss of ____________________.
5. Sugars and amino acids are examples of molecules that (CIRCLE ONE) are or are not small enough to fit
through the protein channels (doorways) in the membrane.
6. Active transport moves materials from areas of _____________ concentration to areas of ____________
concentration.
7. Endocytosis and exocytosis are methods of transport (for very large particles) that (CIRCLE ONE) require or
do not require ATP (energy).
V. Complete the Picture 2
Use arrows to indicate which direction water will move by osmosis. Then, circle whether the cell will shrink or
swell (get bigger).
Situation 1: Solution on the outside of the
cell becomes high in salt and other
substances.
SHRINK
or
SWELL
Situation 2: Solution on the outside is
very high in water, low in salt.
SHRINK
or
SWELL
VI. Comic Relief!
Draw a cartoon below that shows what happens to a cell when a person gets dehydrated. Include what
happens to the cell’s environment, the cell itself and to the whole person.