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PRACTICE.
PART I. Directions: Use your notes and your experience with your team to place the correct process name
or term in the following blanks. Use the word bank to help you. Not ALL of the words are used!
Selectively Permeable
Active Transport
Passive Transport
Endocytosis
Diffusion
Osmosis
Hypertonic
Exocytosis
Hypotonic
Uniport
Symport
Cell Membrane Pumps
Lipids
ATP
Carbohydrates
Vesicle/Vacuole Assisted
Ingestion
Respiration
Excretion
Digestion
Energy
Proteins
1. Water being transported into a cell without the use of energy would be the going through the process of
____osmosis______________.
2. The cell membrane lets only certain substances in and out; it is said to be __selectively permeable____.
3. If a sodium ion (Na+) is being transported across the cell membrane into an area of higher
concentration, the SPECIFIC transport process being used is _____uniport________________.
4. When a cell is exporting wastes, it is performing the steps of metabolism called __respiration________
and __excretion_____________.
5. The surrounding solution of a cell is said to be __hypertonic______ if it has more dissolved solute than
the cytoplasm of the cell does.
6. The cell membrane consists of two layers of _lipids__________ as well as ___proteins____ that help to
transport materials.
7. Carbon dioxide is leaving the cell. Oxygen is entering the cell. Both molecules are moving down the
concentration gradient. The molecules are being transported by the process called _diffusion_______.
8. An amoeba is very hungry and it wants to eat another yet much smaller protist in the water outside of
its membrane. The protist it wants to eat is not small enough to fit through the protein pores of its cell
membrane. To be able to bring the protist into its cytoplasm, the amoeba will use __endocytosis___,
which is a form of the active transport called _____vescile/vacuole assisted___________ transport.
9. A cell needs more potassium and iron inside of it even though there is already a higher concentration of
these molecules within its cytoplasm than in the extra-cellular space. To bring both of these molecules
into the cytoplasm the SPECIFIC type of cell transport the cell will use is ____symport_______.
10. For a cell to be able to successfully transport certain molecules from the cytoplasm where there is lower
concentration of those molecules than in the extra-cellular space where a higher concentration of those
molecules, it will require ___energy_______________ in the form of __ATP______.
PART II. Directions: Place the letter of the definition in column B in the blank next to the corresponding
term in column A. Use your notes and your experience with your team to help you.
COLUMN A
_L__ 1. Active Transport
_G__ 2. Passive Transport
COLUMN B
a. A GENERAL type of active transport in which large
molecules are transported across the cell membrane by
way of vacuoles or vesicles.
b. The materials usually exported from a cell.
_P__ 3. Diffusion
_F__ 4. Osmosis
c. The fusing of a vacuole with the cell membrane and
the release of its contents into the extra-cellular space.
_H__ 5. Cell Membrane Pumps
d. A SPECIFIC type of active transport in which two
molecules move in the same direction from an area of
lower to an area of higher concentration.
_I__ 6. Antiport
e. The difference in the amount of a substance on either
side of the cell membrane.
_D__ 7. Symport
f. The movement of water across the cell membrane w/o
the use of energy.
_N__ 8. Uniport
g. The GENERAL type of transport that does not
require energy.
_A__ 9. Vesicle/Vacuole Assisted
Transport
h. A GENERAL type of active transport in which
proteins in the cell membrane help to transport
molecules.
_J__ 10. Endocytosis
i. A SPECIFIC type of active transport in which two
molecules move across the cell membrane in opposite
directions against the concentration gradient.
_C__ 11. Exocytosis
j. The forming of a vacuole to import a large molecule
into the cell.
_E__ 12. Concentration Gradient
k. The materials usually imported into the cell.
_K__ 13. Raw Materials
l. The GENERAL type of transport that does require
energy.
m. The substance in a solution that does the dissolving.
_B__ 14. Wastes
_O__ 15. Solute
_M__ 16. Solvent
n. A SPECIFIC type of active transport in which a cell
membrane protein moves one type of molecule from an
area of lower to an area of higher concentration.
o. The substance in a solution that gets dissolved.
p. The SPECIFIC type of passive transport in which any
molecule is moved across the cell membrane from a
higher to a lower concentration.
PART III. Directions: Write the transport process name that is being shown by each diagram. Use the
word bank as well as your notes and your experience with your team to help you.
Diffusion
Osmosis
Antiport
Uniport
Symport
Endocytosis
Exocytosis
H20
Cell membrane
Molecule
H 20
2. _____UNIPORT_______
Integral
Protein
1
H 20
Cell membrane
Cell Membrane
1. _____EXOCYTOSIS_____
H20
H 20
Integral Protein
Integral
Protein
H20
Molecule
2
3
3. _______OSMOSIS________
Cell membrane
Molecule
Cell
Membrane
4. _ANTIPORT_
Cell
membrane
5.___SYMPORT___
Cell
6. __ENDOCYTOSIS__
7. ___DIFFUSION________