Transcript Cells Unit Test Review

Cells Unit Test Review
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17. If a person is suffering from severe
dehydration and does not have enough
water in his or her cells, a physician might
give the person an intravenous (IV) solution
to rehydrate the cells. This solution is most
likely:
A. Isotonic to the cells
B. Hypotonic to the cells
C. Hypertonic to the cells
D. Non-tonic to the cells
B
C
A
C
7. Scientists have found that the rate
of division in amoebas is
controlled. Scientists believe that
the transition from stage 2 to stage
3 is slowed by proteins. The
additional time seems to help the
amoeba change coding errors
caused during DNA replication.
Specialized proteins control cell
division in the amoeba. Which cell
part is responsible for making these
proteins?
A.
B.
C.
D.
mitochondrion
pseudopod
ribosome
lysosome
C
34. The following cell structures are located within cells that
make proteins. Which description best explains the
relationship among these cell structures in making a protein?
• nucleus
• ribosome
• endoplasmic reticulum (ER)
D
A. nucleus makes protein
protein winds through the ER
protein folds into its active shape
B. nucleus directs ER to assemble the protein
ribosomes
surround protein
protein folds into its active shape
C. ER creates protein DNA in the nucleus codes for
ribosomes to surround protein
protein folds into its active
shape
D. DNA in nucleus codes for protein
protein assembled in
ribosomes and moves to ER protein folds into its active
shape
A
C
33. What will happen if an animal cell that has a
solute concentration of 1% is placed in a 5%
saltwater solution?
A
A. It will shrink because there is less water outside of
the cell than there is on the inside.
B. It will burst because there is more water on the
outside of the cell than there is on the inside.
C. It will burst because there is more water on the
inside of the cell than there is on the outside.
D. It will remain the same size because there is an
equal amount of water on the inside and outside of
the cell.
5. Each type of specialized cell in the body performs a
special function to maintain homeostasis. These cells
have different structures which reflect the different
functions they perform, however all of these cells began
from a few simple cells that make up an embryo. What
major factor causes the structural changes in the
different cells of the body known as differentiation?
A
A. Different sections of DNA are activated or not
activated to make different structures
B. The mother provides chemical signals to the embryo
as it develops in the womb
C. Different cells receive different levels of oxygen
during differentiation creating different types of cells
D. Growth hormone changes the structure of the
embryo’s cells as it develops
C
3. Some students were viewing some specialized animal cells
under the microscope. Which of the cells they viewed will
have the most mitochondria?
A. muscle and blood cells
B. connective and nerve cells
C. muscle and nerve cells
D. blood and nerve cells
D
C
6. Which structure in the single celled algae
captures energy?
A. nucleus
B. ribosome
C. chloroplast
D. cell membrane
A
B
8. The cell above is most likely to be classified as
eukaryotic because
A. it is exhibiting endocytosis
B. it contains multiple membrane bound organelles
C. it lacks chloroplasts
D. its genetic material is not contained within a
nucleus
19. A sodium-potassium pump within a cell membrane
requires energy to move sodium and potassium ions into or
out of a cell. The movement of glucose into or out of a cell
does not require energy. Which statement best describes
the movement of these materials across a cell membrane?
B
A. Sodium and potassium ions move by active transport,
and glucose moves by osmosis.
B. Sodium and potassium ions move by active transport,
and glucose moves by facilitated diffusion.
C. Sodium and potassium ions move by facilitated diffusion,
and glucose moves by osmosis.
D. Sodium and potassium ions move by facilitated
diffusion, and glucose moves by active transport.
B
• 9. The organism shown is multi-cellular and complex.
Which statement about this organism’s cells is most
valid?
A. The organism’s cells are prokaryotic
B. The organism’s cells have a nucleus
C. The organism’s cells do not have a nucleus
D. The organism’s cells are bacterial
10. Some students have
collected some data on
some cells and want to use
this data to classify the cells
they observed. Which
statement is true based on
the data they collected?
A
A. All of the cells are
eukaryotes
B. All of the cells are plant
cells
C. All of the cells are
prokaryotes
D. All of the cells are animal
cells
16. Tissues and organs are two of the
levels of biological organization. Skin
and blood are:
D
A. Both tissues
B. Both organs
C. A tissue and organ, respectively
D. An organ and tissue, respectively
B
1. The cell structure shown above helps a cell
maintain homeostasis by
A.
B.
C.
D.
performing energy conversions
transporting molecules into and out of the cell
synthesizing new molecules
storage of proteins
4. What of these cells is most likely involved in
transportation of nutrients, waste or oxygen to
maintain homeostasis in the body?
A. blood cell
B. muscle cell
C. nerve cell
D. connective cell
A
B
B
D
20. The rough endoplasmic reticulum and Golgi
apparatus work together in eukaryotic cells.
What is one way that the rough endoplasmic
reticulum assists the Golgi apparatus?
A. It assembles nucleic acids from monomers.
B. It breaks down old, damaged macromolecules.
C. It packages new protein molecules into
vesicles.
D. It determines which protein molecules to
synthesize.
C
A
22. The endoplasmic reticulum is a network of
membranes within the cell, and it is often classified as
rough or smooth, depending on whether there are
ribosomes on its surface. Which statement best describes
the role of rough endoplasmic reticulum in the cell?
D
A. It stores all proteins for later use.
B. It provides an attachment site for larger organelles.
C. It aids in the production of membrane and secretory
proteins.
D. It stores amino acids required for the production of all
proteins.
23. Which structure is primarily
responsible for directing all processes of
a plant cell?
A. chloroplast
B. lysosome
C. mitochondria
D. nucleus
D
A
B
28. A biologist studied a cell with an electron
microscope. The cell contained an endoplasmic
reticulum, chloroplasts, and a cell wall.
The biologist observed a cell from which of the
following groups?
A Plant
B Animal
C Fungus
D Bacteria
A
B
35. Modifies, sorts, and packages
proteins
A. Ribosomes
B. Golgi Apparatus
C. Mitochondria
D. Vacuoles
B
36. Provides energy for the cell
A. Ribosomes
B. Golgi Apparatus
C. Mitochondria
D. Vacuoles
C
37. The levels of organization (from
simple to large)
D
A. organs, cells, organ systems, and tissues
B. organs, organ systems, tissues, and cells
C. cells, organs, organ systems, and tissues
D. cells, tissues, organs, and organ systems
A
2. The graph shows the effects if light intensity on the
process of photosynthesis in some specialized plant cells.
These specialized cells are most likely
A. leaf cells containing a large number of chloroplasts
B. root cells containing a large number of chloroplasts
C. stem cells containing a large number of nuclei
D. plant reproductive cells containing a large number of
chloroplasts