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Biology of Cells & Tissues
Dr. Campbell
Dr. Farmer
Exam 1
Fall 2001
Name___________________
Form A
1.
The oxygen to hydrogen bond found in water molecules are best described as ____.
a.
ionic
b.
nonpolar covalent
c.
polar covalent
d.
van der Waals interaction
e.
hydrophobic
2.
Which portion of water molecules would help to form the solvation shell around a Na+
ion?
a.
oxygen
b.
hydrogen
c.
both a & b
d.
neither a or b
3.
The valence for a carbon atom is _____.
a.
1
b.
2
c.
3
d.
4
4.
Which of the following types of chemical bonds has the largest amount of energy
released upon breakdown (hydrolysis)?
a.
ester bond
b.
carbon to carbon bond
c.
phosphoanhydride
d.
amide bond
5.
Compounds that contain alternating double and single bonds are ______.
a.
aliphatic
b.
aromatic
c.
alkanes
d.
none of the above
6.
Each amino acid has which two groups on the alpha carbon? (Pick two letters on your
scantron)
a.
hydroxyl
b.
carboxyl
c.
carboxyl
d.
amino
e.
quanidino
 Biology of Cells & Tissues, Exam 1, Fall 2001.
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7.
Which of the following is the storage polysaccharide found in the liver?
a.
pectin
b.
amylose
c.
amylopectin
d.
glycogen
e.
lignin
8.
Which type of bonds holds the monosaccharides of a disaccharide together?
a.
phosphoester
b.
ester
c.
amide
d.
carbonyl
e.
glycosidic
9.
Which of the following lipids has a flat planar structure made up of three six numbered
rings and one five numbered ring?
a.
glycerol phospholipids
b.
sphingolipids
c.
triacylglycerol
d.
cholesterol
10.
The copying of the information found in DNA or RNA is based on use of a _____ strand.
a.
random
b.
template
c.
translator
d.
none of the above
11.
Hydrophobic molecules tend to be rich in which two of the following elements? (Pick
two letters on your scantron)
a.
oxygen
b.
carbon
c.
nitrogen
d.
hydrogen
e.
sodium
12.
Which of the following is a small molecule found within cells?
a.
polysaccharide
b.
fatty acid
c.
nucleic acid (DNA)
d.
protein
13.
There are __________ basic tissue types.
a.
two
b.
three
c.
four
d.
five
 Biology of Cells & Tissues, Exam 1, Fall 2001.
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14.
Epithelial tissue:
a.
connects bone to bone
b.
transports nutrients
c.
forms the stroma of many organs
d.
covers surfaces and lines cavities.
15.
Stratified squamous keratinized epithelium is found:
a.
lining the oral cavity
b.
lining the esophagus
c.
forming the epidermis of the skin
d.
A and B
e.
A, B, and C
16.
Goblet cells of the jejunum and trachea are examples of:
a.
unicellular glands
b.
simple unbranched glands.
c.
simple alveolar glands.
d.
none of the above.
17.
Epithelia are characterized in part as having abundant extracellular matrix.
a.
true
b.
false
18.
Transitional epithelium is an example of stratified epithelia.
a.
true
b.
false
19.
Pseudostratified epithelia have _______ layer(s) of cells resting on the basal lamina.
a.
one
b.
several
20.
Endothelial cells are an example of ___________ epithelia.
a.
stratified squamous
b.
simple squamous
c.
simple cuboidal
d.
pseudostratified 13.
21.
The phase in mitosis where the centromeres have separated and the chromosomes are
moving toward the opposite poles is called _____.
a.
telophase
b.
anaphase
c.
interphase
d.
prophase
e.
metaphase
 Biology of Cells & Tissues, Exam 1, Fall 2001.
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22.
The phase in mitosis where the chromosomes begin to condense, the nuclear envelope
disappears and the centrioles begin to migrate to the poles is called _____.
a.
telophase
b.
anaphase
c.
interphase
d.
prophase
e.
metaphase
23.
The phase in mitosis where the chromosomes have reached the opposite poles and they
begin to dissolve from view, while the nuclear envelope reforms is called _____.
a.
telophase
b.
anaphase
c.
interphase
d.
prophase
e.
metaphase
24.
The phase in mitosis where the chromosomes line up at the equator of the cell is called
_____.
a.
telophase
b.
anaphase
c.
interphase
d.
prophase
e.
metaphase
25.
If members of two different gene pairs do not obey Mendel’s second law they are said to
be ______ genes.
a.
recombined
b.
opposing
c.
linked
d.
real
26.
The real difference between Mitosis and Meiosis is that in Meiosis we observe the
phenomenon of _____.
a.
gene duplication
b.
renewed synthesis of DNA before Meiosis II.
c.
RNA synthesis plays a role
d.
synapsis
 Biology of Cells & Tissues, Exam 1, Fall 2001.
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27.
Place the cell junctions of the brush border columnar epithelium in order from apical
surface to basal surface.
1.
hemidesomsome
2.
tight junction
3.
desomsome
4.
intermediate junction
a.
b.
c.
d.
e.
1, 2, 3, 4
2, 4, 3, 1
2, 3, 4, 1
4, 2, 3, 1
2, 4, 1, 3
28.
The difference between simple diffusion and facilitated diffusion is that there is a ____
involved in facilitated diffusion, but not in simple diffusion.
a.
nucleic acid
b.
polysaccharide
c.
protein
d.
glycolipid
29.
The primary microtubule organizing centers (MTOC's) of eukaryotic cells are the
______.
a.
NOR's
b.
Golgi Complex
c.
nucleolus
d.
centrosomes
30.
The basal body of a cilium has a _____ structure.
a.
9+0
b.
9+2
c.
9+3
d.
9+1
31.
The role of communicating junctions is to allow for the passage of ____ within a tissue
proceeding form cell to cell.
a.
small molecules
b.
ions
c.
both a and b
d.
neither a nor b
32.
The ultrastructure for a stereocilium is based on _____.
a.
microtubules
b.
microfilaments
c.
dynein motors
d.
intermediate filaments
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33.
Which of the following is a communicating cell junction?
a.
desmosome
b.
hemidesmosome
c.
tight junction
d.
intermediate junction
e.
gap junction
34.
Enzymes catalyze chemical reactions in cells under physiological conditions of
temperature and pressure by:
a.
increasing kinetic energy of reactants.
b.
decreasing the kinetic energy of reactants.
c.
lowering the activation energy of a reaction.
d.
increasing the activation energy of a reaction.
A
B
C
D
Figure 1
35.
Which of the labels on figure 1 above is pointing to the nucleolus?
36.
Which of the labels on figure 1 is pointing at the intermediate filaments of the cytoplasm?
37.
Which of the labels in figure 1 above is pointing at an area rich in chromatin?
38.
Which of the labels on figure 1 is pointing at the smooth endoplasmic reticulum?
 Biology of Cells & Tissues, Exam 1, Fall 2001.
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A
B
C
E
D
40.
Figure 2
Using the figure above which three organelles are involved in the production of a
secreted protein?
a.
A, B, C
b.
B, C, E
c.
A, D, E
d.
A, C, D
e.
C, D, E
Which letter points toward the centrioles?
41.
Which letter above points toward the Golgi Complex?
42.
Which letter points to a mitochondrion?
43.
When oxygen is depleted in the human body, what is the metabolic fate of the endproduct of glycolysis, pyruvate?
a.
conversion to acetyl CoA
b.
conversion to acetaldehyde
c.
conversion to lactate
d.
conversion to ethanol
44.
Which of the following classes of proteins gradually increases during interphase of the
cell cycle and is involved in coordination of this portion of the cycle?
a.
maturation promoting factor
b.
cyclins
c.
dehydrogenation factor
d.
apoptotic factor
e.
all of the above are involved in interphase
39.
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45.
Meiosis is a special type of cell division that produces _____ cells that are referred to as
gametes.
a.
diploid
b.
haploid
c.
tetraploid
d.
aneuploid
46.
Proteins larger than the nuclear pores working cut-off, must have a _____ embedded
within the proteins sequence in order to reach the nucleoplasm.
a.
secretory signal
b.
hydrophobic signal
c.
glycine rich signal
d.
nuclear localization signal
47.
Which of the following is the division of meiosis where the chromosome number is
halved?
a.
Meiosis I
b.
Meiosis II
c.
Meiosis III
d.
Meiosis IV
48.
Which of the following represents the phase in which a cell exits the cell cycle?
a.
G1
b.
G2
c.
S
d.
G0
e.
M
49.
The motor unit that powers the movement of cilia is called _____.
a.
myosin I
b.
myosin II
c.
G-actin
d.
axonemal dynein
e.
cytoplasmic dynein
50.
The process of cell suicide induced when a cell is heavily damaged is called __.
a.
cancer
b.
apoptosis
c.
meiosis
d.
mitosis
END OF EXAM 1
 Biology of Cells & Tissues, Exam 1, Fall 2001.
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