BIO 353 (Cell Biology) Practice Exam 1 Latest Updated Solution
Arizona State University
1. Bacterial
2. Chromosomal DNA
3. Plasmid DNA
4. Lake Assal is a crater lake located in the south- Halophiles
ern African nation of Dijibouti. Lake Assal is the
saltiest lake outside of Antarctica and contains
10 times more salt than ocean water. What type
of organism would most likely be found within
Lake Assal?
5. Heme is a non-protein molecule that is covalently Prosthetic Group
attached to myoglobin protein and is required for
myoglobin's ability to transport oxygen. Heme in
this example can be best described as a(n):
6. Cytochrome c oxidase is an enzyme found in mi- Co-factors
tochondria and plays a role in the electron trans-
port chain. Two copper atoms are attached to this
protein and are required for the protein's ability
, BIO 353 (Cell Biology) Practice Exam 1 Latest Updated Solution
Arizona State University
to transfer electrons. In this example, the copper
atoms would be considered .
7. What class of enzyme catalyzes phosphorylation Kinase
reactions?
8. What class of enzyme catalyzes phosphorylation Origin Recognition
reactions? Complex (ORC)
9. Which one of the following describes what oc- Transcription is not oc-
curs in heterochromatin? curring
10. What part of the DNA replication process would Lagging-strand comple-
be most directly affected in a strain of bacteria tion
lacking DNA ligase?
11. Telomerase activity is regulated during develop- The ends of chro-
ment and has very low, almost undetectable ac- mosomes will not be
tivity in somatic cells. Which one of the following replicated resulting in
most likely represents what happens in somatic chromosome shorten-
cells with no telomerase activity? ing with every cell divi-
sion
12. Which ONE of the following steps is NOT re- Generation of 3' over-
quired for repair of double-stranded DNA breaks hangs
using NonHomologous End-Joining?
a) Digestion of DNA by Nucleases
b) Generation of 3' overhangs
c) Ligation of DNA
d) Recognition of the damage by repair proteins
13. Shown below are the enzymes needed to repair II, III, I
the DNA damage shown in the image above.
I. DNA Ligase
II. Nuclease
III. DNA Polymerase
Put the enzymes in the correct order in which
they are used during DNA Damage Repair.
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