Download Review Packet: Cell Transport 2> .The diagram below represents a

Date
Name
Biology
Review Packet: Cell Transport
|
. The fluid-mosaic model of the cell membrane
if .Which diagram best represents the fluid-mosaic
suggests that the membrane is primarily composed
model of a cell membrane?
of
(A) outside surface
(A) proteins and starches
(B) carbohydrates and lipids
protein
molecules
(C) sugars and proteins
(D) proteins and lipids
^ .Which cell structure is represented by the threeinside surface
dimensional diagram below?
(B) outside
carbohydrate
surface
lipid
molecules
inside
surface
Protein
molecules
molecules
outside surface
(C)
lipid
protein
molecules
molecules
(A) chloroplast
(B) mitochondrion
(C) plasma membrane
inside surface
(D) replicated chromosome
2> .The diagram below represents a section of a
(D) outside
, protein
surface
plasma membrane.
lipid
molecules
inside
surface
What does structure X represent?
(A) a protein
{C) a lipid
(B) glucose
(D) glycogen
5"
The diagram below shows the same type of
molecules in area A and area B. With the passage
of time, some molecules move from area A to area
B.
~7 Human red blood cells placed in a 2 % salt
solution appear to shrink, but those placed in a 0.4
% salt solution burst. Which statement best
supports these observations?
(A) Salt causes cell walls to swell.
(B) Salt is actively transported across cell
Molecules
membranes.
(C) The nucleus does not regulate water balance in
a cell.
(D) Osmosi6 may occur in either direction across
the cell membrane.
Q .Which statement best explains why gas
transport takes place as represented in the diagram
below?
Selectively Permeable Membrane
This movement is the result of the process of
(A) phagocytosis
(C) diffusion
(B) pinocytosis
(D) cyclosis
CO.
CO5
.Which process accomplishes the movement of
gases illustrated by the arrows in the diagram
below?
(A) The carbon dioxide concentration is greater in
the cells than in the environment.
(B) The carbon dioxide is absorbed into the
environment by active transport.
(C) The carbon dioxide concentration in the cells is
equal to that in the environment.
(D) The carbon dioxide is transported to the
(A) transpiration
(C) phagocytosis
(B) diffusion
(D) osmosis
environment by a transport system.
. Which process would include a net movement
of sugar molecules through a membrane from a
region of lower concentration to a region of higher
concentration?
(A) osmosis
(C) active transport
(B) cyclosis
(D) passive transport
\Q. A red blood cell placed in distilled water will
swell and burst due to the diffusion of
(A) salt from the red blood cell into the water
(B) water into the red blood cell
(C) water from the blood cell into its environment
(D) salt from the water into the red blood cell
11 . Red blood cells contain a higher concentration
of potassium than the surrounding blood plasma
does. This higher concentration is maintained by
the process of
(A) cyclosis
(C) simple diffusion
(B) osmosis
(D) active transport
/2 - Since cyanide is a poison that limits a cell's
ability to manufacture ATP, a cell containing
cyanide is least likely to carry on the process of
(A) passive transport
(C) active transport
(B) osmosis
(D) diffusion
/3 -The process of osmosis would explain the net
movement of water into a cell if the percentage of
(A) water was 90% inside the cell and 95% outside
the cell
(B) protein was 30% inside the cell and 35%
outside the cell
(C) water was 95% inside the cell and 90% outside
the cell
(D) water and protein was equal inside and outside
the cell
\H .In a cell, the selective permeability of the cell
membrane is most closely associated with the
maintenance of
(A) homcostasis
(C) phagocytosis
(IB) hydrolysis
(D) pinocytosis
IS Which substances may pass through a cell
membrane by simple diffusion?
(A) starch and protein
(B) protein and fat
(C) carbon dioxide and water
(D) carbon dioxide and starch
\\q .Molecules A and B come in contact with the
cell membrane of the same cell. Molecule A passes
Ihrough the membrane readily, but molecule B does
not. Which statement could describe molecules A
and 5?
(A) Molecule A is a protein, and molecule B is a fat.
(B) Molecule A is a starch, and molecule B is a
simple sugar.
(C) Molecule A is an amino acid, and molecule B is
a simple sugar.
(D) Molecule A is a simple sugar, and molecule B
is a starch.
f7 .Which structure is most directly responsible for
maintaining homeostasis in all cells?
(A) chloroplast
(C) centriole
(B) cell membrane
(D) cell wall
(
Q
The diagram below represents the fluid-mosaic
.A student observed a wet mount of some
stained plant cells in the high-power field of a
model of a cell membrane.
compound light microscope. Diagram A represents
the general appearance of these cells. The student
then added several drops of a liquid to the wet
mount and continued the observations. Diagram B
represents the general appearance of the cells a few
minutes after adding the liquid.
The arrow points to a component of the membrane
B
that is best described as a
(A) sugar floating in lipids
(B) protein floating in lipids
The liquid that the student added to the wet mount
(C) lipid floating in proteins
was most likely
(D) lipid floating in sugars
jQ .Which statement regarding the functioning of
the cell membrane of all organisms is not correct?
j
(A) The cell membrane forms a boundary that
!
;
(B) The cell membrane is capable of receiving and i
recognizing chemical signals.
(C) The cell membrane forms a barrier that keeps
■
;
all substances that might harm the cell from
i
entering the cell.
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(D) The cell membrane controls the movement of
molecules into and out of the cell.
(C) pond water
(B) distilled water
(D) tap water
J | .Which process requires cellular energy?
separates the cellular contents from the outside j
environment.
(A) salt water
(A) diffusion
(C) active transport
(B) passive transport
(D) osmosis