Download Unit G Rev #2 - Mr. Lesiuk

Name : ________________
Date: ________
The Cell Membrane : Review #2
Cell Membrane Structure and Function (Learning Outcomes G3-G8)
L.O. G – 3 Facilitated Transport vs. Active Transport
___ 1. Both Facilitated Transport and Simple Diffusion are methods of passive transport,
How do they differ?
___ 2. Explain the similarities and differences between Facilitated Transport and
Active Carrier Transport.
___ 3. How many different types of molecules can be typically transported by a
particular carrier molecule?
___ 4. Substances in facilitated transport can only move from an area of
______________ concentration to an area of ________________concentration.
___ 5. In Active Carrier Transport, how do the molecules move with respect to the
concentration gradient?
___ 6. What is the required energy molecule for any method of Active Transport?
___ 7. What cell organelle do you think would be present in large numbers in cells
that frequently perform lots of Active Transport?
___8. Which types of bodily cells contain high numbers of Na+/K+ Pumps?
___ 9. How is the same carrier able to carry two different ions/atoms?
L.O. G – 4 Factors Affecting Diffusion
___ 1. How does the size of the molecules, affect the rate at which the molecule can
move from one location to another?
___ 2. Explain how temperature affects the rate of diffusion?
___ 3. Explain why cells lining the intestine would fold their cell membrane up an
down as seen in the picture below. Think !
L.O. G – 5 Endocytosis and Exocytosis
____1. Both endocytosis and exocytosis require ATP to re-arrange the cell membrane
into vesicles. So are they considered methods of Active Transport or Passive Transport.
OVER 
___ 2. There are two different types of endocytosis; name them and explainwhat makes
them different from one another.
___ 3. When an amoeba ingests a paramecium what type of endocytosis would that be?
___ 4. After a white blood cell uses Endocytosis (phagocytosis) to engulf a bacterial cell,
what type of cell organelle would fuse with the incoming vesicle to release
hydrolytic enzymes into the vesicle to destroy the Bacterium?
___ 5. Define exocytosis.
L.O. G – 6 Hypertonic, Hypotonic, and Isotonic
____1. If a core of potato is placed into distilled water, the potato is considered
(Isotonic/Hypertonic/Hypotonic) to the water? - Choose the correct term
___ 2. What term is used to describe what happens to a Plant (potato) cell when placed
into Test Tube #11 (pure distilled water)
___ 3. What term is use to describe what happens to an animal cell when it is placed
in a hypertonic solution?
___ 4. What term is used to describe what happens to an animal cell when it is placed in
a hypotonic solution?
G – 7 Data And Graphs - Refer to Potato Osmosis Lab to learn Learning Outcomes
L.O. G – 8 Surface Area vs. Volume (read p. 48 from Ch.3)
___ 1. Each time the length of the sides of a cube is doubled, how much is the surface
area of the cube increased? – See notes
___ 2. Each time the length of the sides of a cube is doubled, how much is the volume
of the cube increased? – See notes
___ 3. What is happening to the "surface area : volume ratio" as a cell increase in size?
___ 4. Why is a high Surface Area : Volume - Ratio a good thing for a cell?
Practice Quiz :