1. During which step of aerobic cellular respiration are most of the high energy co-enzymes, NADH and FADH2, produced?
conversion of pyruvate to Acetyl-CoA
Kreb's cycle
electron transport chain
glycolysis
2. This biochemical test distinguishes Staphylococcus aureus from other species of Staphylococci. What is the name of this test?
oxidase test
indole test
coagulase test
catalase test
3. ___________ are stretches of DNA that code for functional molecules that are utilized within that organism.
genes
introns
codons
amino acids
4. Which of the following types of RNA is a component of ribosomes?
rRNA
sRNA
tRNA
mRNA
5. This image pictures the blood parasites Trypanosoma brucei and T. cruzi. Identify the structure that is designated by the black arrows and what disease does T. cruzi cause?
nucleus/Chagas disease
kinetoplast DNA/ Chagas disease
kinetoplast DNA/African Trypanosomiasis
nucleus/ African Trypanosomiasis
6. During which step of photosynthesis does carbon dioxide get fixed into sugar molecules?
Calvin-Benson cycle
light reactions
non-cyclic photophosphorylation
cyclic photophosphorylation
7. Which protozoan in Phylum Diplomonada possess 2 nuclei which look like 2 eyes when the parasites are stained for diagnostic purposes?
Leishmania sp.
Acanthamoeba polyphaga
Giardia intestinalis
Trichomonas vaginalis
8. During an infection with Plasmodium, the gametophytes are produced in the ________________ and sexual reproduction occurs in the _____________.
mosquito/snail
human/mosquito
mosquito/human
snail/human
9. Which retrovirus enzyme do scientist's utilize to synthesize cDNA?
integrase
viral ligase
viral protease
reverse transcriptase
10. Which of the following would you NOT find in a virion?
nucleic acid
capsomeres
protein coat
ribosomes
11. This image illustrates a Kirby-Bauer antimicrobial sensitivity test. The zone of inhibition for TE is 17mm. Using the Table of Interpretive Standards, determine if Escherichia coli is resistant, intermediate or susceptible to TE.
there is not enough information to determine this
susceptible
intermediate
resistant
12. How do you determine the DNA fragment sizes (lengths) once the DNA is separated by agarose gel electrophoresis?
you can guess the size knowing that the largest DNA fragments will travel through the gel the quickest.
Compare the migration of your DNA fragment to a standard which contains known DNA fragment sizes.
Measure the distance that your DNA traveled in the gel and divide by the length of the gel.
Measure the distance that your DNA traveled through the gel, then multiple by 100bp per cm.