Name:
Date:
QUIZ: CELL TRANSPORT
1.
2.
Which of the following best describes how
molecules normally move in a cell?
A. From areas of higher concentration to areas
of lower concentration
B. From areas of lower concentration to areas
of higher concentration
C. From areas of higher temperature to areas
of lower temperature
D. From areas of lower pressure to areas of
higher pressure
What will happen if a cell is placed in a beaker
of salt water?
A. Salt will enter the cell
B. The cell will reproduce
C. Energy will be gained by the cell
D. Water molecules will leave the cell
3. Saltwater fish remove extra salt from their body
by active transport through the gills. What is
the result of this activity?
A. The salt becomes more chemically active.
B. Water balance is maintained in the blood.
C. The rate of energy production is decreased.
D. The cell membrane becomes less permeable
to water.
4.
Why will a blood cell die when placed in pure
water?
A. The sugars will leave the blood cell and
deprive it of energy
B. The water will leave the blood cell and
dehydrate it
C. The water will enter the blood cell and
cause it to burst
D. The waste products will be unable to leave
the cell
Class Period:
Use the following information # 5:
Turgor is the internal pressure on a plant cell caused by the
absorption of water into the cell. The picture below demonstrates
the affect of turgor on stalks of celery in different salt solutions.
5. Which of the beakers shown in the diagram
most likely is a hypertonic solution?
A. Beaker A
B. Beaker B
C. Beaker C
D. Beaker D
6. Which of these best explains why a freshwater
aquarium would be a dangerous habitat for
saltwater fish?
A. The tissues of the saltwater fish would
absorb too much acid.
B. The organs of the saltwater fish would
produce too much protein.
C. The organ systems of the saltwater fish
would consume too much energy.
D. The cells of the saltwater fish would gain too
much water.
7.
All of the following are types of passive
transport (requiring no energy) except
A. Endocytosis
B. Diffusion
C. Osmosis
D. Facilitated diffusion
8.
In cells, transport of nutrients and wastes
across membranes is accomplished though the
process of facilitated diffusion. In which of the
following ways does facilitated diffusion differ
from normal diffusion?
A. Facilitated diffusion requires that nutrients
or wastes travel from a lower concentration
to a higher concentration.
B. Normal diffusion requires that nutrients of
wastes travel from a lower concentration to
a higher concentration.
C. Normal diffusion requires that a protein
channel be present before crossing the
membrane.
D. Facilitated diffusion requires that a protein
channel be present before crossing the
membrane.
9. Active transport and facilitated diffusion in cells
both result in the movement of nutrients or
wastes across a membrane. Which of the
following comparisons between active
transport and facilitated diffusion is true?
A. Active transport requires the input of
energy and facilitated diffusion does not.
B. Facilitated diffusion requires the input of
energy and active transport does not.
C. Facilitated diffusion requires concentration
differences across the membrane and
active transport does not.
D. Active transport requires the presence of a
semi-permeable membrane and facilitated
diffusion does not.