Name:     ID: 
 
    Email: 

Cell Practice Test

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 
The basic structural and functional unit for all organisms is
a.
the nucleus.
c.
the atom.
b.
cytoplasm.
d.
the cell.
 

 2. 
According to the cell theory, all cells come from
a.
Mars.
c.
nonliving material.
b.
preexisting cells.
d.
microorganisms.
 

 3. 
The instrument most likely to show the greatest detail of cells is the
a.
electron microscope.
c.
light microscope.
b.
compound microscope.
d.
hand lens.
 

 4. 
Bacteria have cells with
a.
no cell division.
b.
no definite nuclei.
c.
no ribosomes or plasma membranes.
d.
no cell walls.
 
 
The questions are descriptions of characteristics of certain organisms. On the basis of the characteristics given, indicate whether each resembles the cell of an animal or the cell of a plant.
 

 5. 
Refer to the information above.  The nuclear material of bacteria is scattered throughout the cell, and there is no nuclear membrane.
a.
most animal cells
b.
most plant cells
c.
most plant and most animal cells
d.
neither most plant nor most animal cells
 

 6. 
Refer to the information above.  A bacterium is surrounded by a cell wall.
a.
most animal cells
b.
most plant cells
c.
most plant and most animal cells
d.
neither most plant nor most animal cells
 

 7. 
Refer to the information above.  An amoeba has a flexible cell membrane, but no cell wall.
a.
most animal cells
b.
most plant cells
c.
most plant and most animal cells
d.
neither most plant nor most animal cells
 

 8. 
Refer to the information above.  Cyanobacteria contain chlorophyll.
a.
most animal cells
b.
most plant cells
c.
most plant and most animal cells
d.
neither most plant nor most animal cells
 

 9. 
Refer to the information above.  The nucleus of an amoeba is surrounded by a nuclear membrane.
a.
most animal cells
b.
most plant cells
c.
most plant and most animal cells
d.
neither most plant nor most animal cells
 

 10. 
Refer to the information above.  The single chromosome of bacteria is located in the nucleoid.
a.
most animal cells
b.
most plant cells
c.
most plant and most animal cells
d.
neither most plant nor most animal cells
 

 11. 
The organelle that is used for digestion is the
a.
ribosome.
c.
vacuole.
b.
lysosome.
d.
nucleus.
 

 12. 
Proteins may move from one area to another area within a cell through the
a.
nucleus.
c.
cell membrane.
b.
endoplasmic reticulum.
d.
ribosome.
 

 13. 
Plant cells usually can be distinguished from animal cells because only plant cells possess
a.
mitochondria.
c.
cell walls.
b.
ribosomes.
d.
chromosomes.
 

 14. 
Ribosomes function in
a.
protein synthesis.
b.
passing genetic information to an offspring cell.
c.
increasing cellular respiration.
d.
manufacturing food.
 
 


cellpracticetest_files/i0170000.jpg

      Figure 06.01
 

 15. 
Refer to Figure 06.01.  With structure 3 removed, a cell could not
a.
reproduce.
b.
secrete.
c.
exchange materials with the environment.
d.
provide its own energy.
 

 16. 
Refer to Figure 06.01.  If structure 6 is green, the presence of many of these structures allows the organism to
a.
reproduce.
b.
secrete.
c.
exchange material with the environment.
d.
make its own food.
 

 17. 
Refer to Figure 06.01.  During cell division, some contents of structure 3 would become visible as
a.
chloroplasts.
c.
vacuoles.
b.
chromosomes.
d.
mitochondria.
 

 18. 
Refer to Figure 06.01.  Which structure consists of cellulose?
a.
cell I-2
c.
cell II-1
b.
cell I-3
d.
cell II-6
 

 19. 
The ability of some eukaryotic cells to move is most directly related to which structure?
a.
endoplasmic reticulum
c.
cytoskeleton
b.
Golgi apparatus
d.
chloroplast
 

 20. 
A rose bush can be described as a/(an)
a.
tissue.
c.
organ system.
b.
organ.
d.
organism.
 

 21. 
A group of cells that are similar in structure and function are called a/(an)
a.
tissue.
c.
organ system.
b.
organ.
d.
organism.
 

 22. 
The leaf of a plant is a/(an)
a.
tissue.
c.
organ system.
b.
organ.
d.
organism.
 

 23. 
The principle of division of labor in multicellular organisms involves the
a.
production of varied agricultural crops.
b.
competition of organisms.
c.
differentiation of cells into tissues having different functions.
d.
growth of more cells to do the work required.
 

 24. 
Drinking only a liquid high in salt, such as seawater, can cause death because
a.
salt prevents the kidneys from removing wastes.
b.
seawater contains toxic compounds.
c.
salt causes the body to retain too much water.
d.
too much water is used to eliminate salt from the body.
 

 25. 
The purpose of a transport system is to
a.
cause organisms to grow very slowly.
b.
pump ATP to nutrients into cells.
c.
carry nutrients to cells and waste products away from cells.
d.
exchange oxygen for carbon dioxide in cells.
 

 26. 
The blood vessels through which oxygen rapidly diffuses are the
a.
arteries.
c.
capillaries.
b.
veins.
d.
lymph vessels.
 

 27. 
A person having a low red blood cell count will have difficulty
a.
digesting food.
c.
transporting oxygen to cells.
b.
clotting blood.
d.
breathing.
 

 28. 
Very large molecules, such as proteins, enter the cell by
a.
osmosis.
c.
exocytosis.
b.
facilitated diffusion.
d.
endocytosis.
 

 29. 
Endocytosis and exocytosis
a.
supply energy to the cell.
c.
require a concentration gradient.
b.
need energy from the cell.
d.
require sunlight.
 

 30. 
The total surface area of all the alveoli in an average person’s lungs is about
a.
2 square meters (the size of your bed).
b.
12 square meters (the size of your bedroom).
c.
60 square meters (the size of your classroom).
d.
600 square meters (the size of a football field).
 

 31. 
The primary excretory organs of ocean fishes are their
a.
gills.
c.
intestines.
b.
kidneys.
d.
scales.
 
 
Ammonia is a very toxic waste product unless it is diluted. Urea is less toxic than ammonia, and uric acid is nontoxic because it does not dissolve on moist cell or tissue surfaces. Ammonia and urea are soluble in water. Uric acid is insoluble and, therefore, requires little or no water for its excretion.
 

 32. 
Refer to the information above.  Where would an animal that excretes ammonia live?
a.
in water
b.
in land habitats of moderate moisture
c.
in deserts or other arid regions
d.
both on land and in water
 

 33. 
Genes act by directing the synthesis of
a.
carbohydrates.
c.
lipids.
b.
proteins.
d.
sugars.
 

 34. 
Which of the following statements is true?
a.
All genes are always expressed in all cell types.
b.
Gene expression is random and occurs by chance.
c.
Different cell types  have different sets of genes.
d.
Gene expression is controlled differently in specific cell types.
 

 35. 
"Working tapes" of instructions that are carried to the ribosomes are
a.
protein molecules.
c.
mRNA molecules.
b.
tRNA molecules.
d.
DNA molecules.
 

 36. 
Amino acids are required in the human diet principally for the synthesis of
a.
proteins.
c.
starches.
b.
sugars.
d.
lipids.
 

 37. 
The enzyme that initiates the first stage of transcription is
a.
ribose transcriptase.
c.
RNA polymerase.
b.
RNA transcription enzyme.
d.
RNA transcriptase.
 

 38. 
Where does translation take place?
a.
ribosomes
c.
nuclei
b.
mitochondria
d.
nucleoli
 

 39. 
Eukaryotic cell division requires
a.
only partial passage through the cell’s cycle.
b.
no energy, because it is a passive process.
c.
accurate replication and equal division of the genetic information encoded in the cell’s DNA.
d.
only equal division of the cell’s DNA without prior replication.
 

 40. 
The phase of the cell cycle involving sorting and distribution of chromosomes is
a.
G0.
c.
S.
b.
G1.
d.
M.
 

 41. 
Transmission of hereditary information is associated with
a.
cilia.
c.
centromeres.
b.
chromosomes.
d.
ribosomes.
 

 42. 
When a cell with 24 chromosomes during G1 phase divides by mitotic cell division, the resulting offspring cells will each have a maximum chromosome number of
a.
6.
c.
24.
b.
12.
d.
48.
 

 43. 
DNA is replicated during which phase of the cell cycle?
a.
G1
c.
S
b.
G2
d.
M
 

 44. 
Adult nerve cells stay in the G0 phase. This means they
a.
do not divide.
c.
divide very slowly.
b.
continually divide.
d.
undergo multiple cell divisions.
 

 45. 
In mitosis, breakdown of the nuclear membrane occurs in
a.
prophase.
c.
anaphase.
b.
metaphase.
d.
telophase.
 

 46. 
A mitotic spindle is formed from
a.
chromosomes.
c.
replisomes.
b.
nucleosomes.
d.
microtubules.
 

 47. 
In mitosis, separation of sister chromatids occurs during
a.
prophase.
c.
anaphase.
b.
metaphase.
d.
telophase.
 

 48. 
What happens during gamete formation?
a.
a change from diploid to haploid
b.
a change from haploid to diploid
c.
no change in chromosome number
 

 49. 
In what ways are human sperm and human eggs similar?
a.
They have approximately the same mass.
b.
About the same number is produced.
c.
They are both motile.
d.
They have the same number of chromosomes.
 

 50. 
Collectively, reproductive cells are referred to as
a.
ova.
c.
gametes.
b.
sperm.
d.
eggs.
 

 51. 
The process called crossing over ensures that
a.
maternal and paternal genes are mixed in each homologous chromosome pair.
b.
mutations in maternal genes are sent only to polar bodies.
c.
mutations do not occur in paternal genes that are passed on to chromatids.
d.
chromosomes are duplicated only after the first meiotic division.
 

 52. 
In meiosis, the chromosomes are replicated during
a.
metaphase.
c.
anaphase I.
b.
interphase.
d.
telophase I.
 

 53. 
The normal process of programmed cell death is known as
a.
apoptosis
c.
oxidation
b.
necrosis
d.
spitzing
 

 54. 
The protective end section of each chromosome that shortens each time the cell divides
a.
centromeres
c.
sarcomeres
b.
pseudomeres
d.
telomeres
 
 


cellpracticetest_files/i0590000.jpg

      Figure 03.01

There are glucose solutions on both sides of the selectively permeable membrane.
 

 55. 
Refer to Figure 03.01.  If the original levels of liquid on both sides were the same, the glucose concentration on the left side was originally
a.
more concentrated than the right side.
b.
less concentrated than the right side.
c.
identical in concentration to the right side.
d.
unrelated to the concentration on the right side.
 

 56. 
Refer to Figure 03.01.  If the system is now at equilibrium, the glucose concentration on the left side is now
a.
more concentrated than the right side.
b.
less concentrated than the right side.
c.
close to the concentration on the right side.
d.
unrelated to the concentration on the right side.
 

 57. 
Refer to Figure 03.01.  At equilibrium, the total amount of glucose on the left side is
a.
more than the amount on the right side.
b.
less than the amount on the right side.
c.
the same as the amount on the right side.
d.
unrelated to the concentration on the right side.
 



 
Submit          Reset Help