BSNC 2000 Midterm Exam 2025
Match the following five agents (Protozoa, Bacteria, Viruses, Molds, Yeasts) with the
corresponding description.
1. Acellular
2. Multicellular eukaryotes
3. Unicellular eukaryotes
4. Prokaryotes
5. None of the Above - Correct Ans-3. Protozoa
4. Bacteria
1. Viruses
2. Molds
3. Yeasts
Which of the following statements is false?
a) Binomial nomenclature is a system of assigning scientific names to microbes with a
combination of the genus name followed by the species name
b) Both the genus and species names should be italicized
c) Subtypes of the same species can be classified into different strains
d) TB bacillus is an example of scientific names assigned to the bacteria that cause the
disease tuberculosis
e) All of the above - Correct Ans-d) TB bacillus is an example of scientific names
assigned to the bacteria that cause the disease tuberculosis
Prions are infectious abnormal proteins that do not carry any genetic material. They are
responsible for fatal neurological diseases such as Creutzfeldt-Jakob Disease (CJD)
and bovine spongiform encephalopathy (BSE, also known as Mad Cow Disease).
Hence, prions are best described as:
a) prokaryotic
b) eukaryotic
c) acellular
d) viruses
e) none of the above - Correct Ans-c) acellular
Different strains of the same bacterial species (e.g. Escherichia coli) can differ in their
ability to cause disease.
True/ False - Correct Ans-True
You need to fill in the boxes of the concept map shown above. Which of the following
microbes would be classified as cellular and containing a nucleus? (Select FOUR)
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Protozoa
Bacteria
Fungi
Helminths
Viruses
Algae - Correct Ans-Protozoa
Fungi
Helminths
Algae
Healthcare associated infections can occur in a/an:
a) home care arrangement
b) long-term care facility
c) hospital
d) B and C
e) A, B and C - Correct Ans-e) A, B and C
The impact of health care associated infections in Canada includes:
a) added health care cost
b) increased morbidity
c) increased mortality
d) A and C
e) A, B and C - Correct Ans-e) A, B and C
Which of the following pairs is correctly matched?
a) Healthcare associated (HA) bloodstream infections - central line
b) HA urinary tract infections - urinary catheter
c) HA pneumonia - ventilator
d) B and C
e) A, B and C - Correct Ans-e) A, B and C
You are caring for a 78-year old female patient who just had a lengthy surgery for her
ovarian cancer. After the surgery, she is now treated with chemotherapy. This patient is
considered to have a weakened immune system (i.e. immmunocompromised) and have
a higher risk of healthcare associated infections.
True/ False - Correct Ans-True
When a nurse is found to carry an airborne infection,
a) they must be terminated from hospital employment
b) they must take additional precautions when treating patients
c) there is no need for special precautions as transmission risk is negligible
d) they should be removed from direct patient contact until the risk of transmission has
passed
e) none of the above - Correct Ans-d) they should be removed from direct patient
contact until the risk of transmission has passed
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