1. Which of the following demonstrate proper binomial nomenclature p a. Serratia Marcescens b. SERRATIA MARCESC

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1. Which of the following demonstrate proper binomial
nomenclature p
a. Serratia Marcescens b.
SERRATIA MARCESCENS
c. Serratia marcescens d. Serratia
marcescens
2. Which percent of alcohol would work best as a disinfectant on
a tabletop?
a. 100% b. 95%
c. 70%
d. Alcohol is a sanitizer and doesn’t work on a tabletop
3. You would find mitochondria in the following
microorganism(s):
a. Yeast b.
Proteus vulgaris c. E.
coli d. S. aureus
e. all answers
4. The following is an important precursor for
chemoheterotrophic bacteria
a. glucose
b. glucose 6 phosphate
c. lactose
d. a and c
e. all answers
5. This virus is closely related to the Small pox virus and
exposure and infection gave “milk maids” some protection against a
Small pox virus infection.
a. HIV b.
Influenzavirus
c. Sars-COVI-2
d. cow pox virus e.
all answers
6. Substrate plus enzyme equals:
a. an entry mechanism b. a
product c. interferons
d. mRNA
e. all answers
7. This is the preferred source of carbon for a
chemoheterotroph:
a. lactose
b. sucrose
c. protein
d. glucose
e.
maltose
8. The time it takes for a bacterial population to double
is called:
a. generation time
b. log phase c.
CFUs/mL d. direct
enumeration e. no answer
9. This compound found in Gram negative cell walls is
toxic to humans:
a. O antigens
b. Lipid A
c. inclusions
d. magnetite
e. all answers
10. These bacteria possess approximately 80% of
peptidoglycan in their cell walls.
a. Gram positive bacteria
b. Gram negative bacteria
c. Mycoplasmas d. Virions