WorksheetsMicrobiology- Lecture Exam 2
Total questions: 34
Worksheet time: 34mins
Who proposed a taxonomic approach based on 5 kingdoms?
Carl Woese
Carolus Linneaus
Robert Whittaker
Martin Beijerinck
Which taxonomic grouping is absent in bacteria?
Phylum
Class
Kingdom
Order
Family
Which of the following is true for mechanical vectors?
The pathogen does not reproduce within the vector
The pathogen does reproduce within the vector
Transmission occurs when the vector bites an animal
Examples include mosquitoes and ticks
You are isolating an organism from a hot spring that has a temperature of 85 degrees C. The organism is
Mesophilic
Thermophilic
Psychrophilic
Hyperthermophile
Which of the following is true for beta-lactamase?
It destroys the antibiotic penicillin, rendering it inactive
It is important in detoxifying the superoxide radical
It prevents digestion of bacteria in phagosomes
It induces apoptosis in host cells
Key Virulence factors of Streptococcus pyogenes include (mark all that apply. More than one answer is correct)
Mycolic acid
T3SS
A capsule
M protein
A neurotoxin
Clostridium botulinum belongs to
the Actinobacteria
the Proteobacteria
the Firmicutes
the Spirochaetes
the Cyanobacteria
Please bring the 5 stages of disease in the correct order:
Incubation, prodromal, decline, illness, convalescence
Prodromal, incubation, illness, decline, convalescence
Illness, prodromal, incubation, decline, convalescence
Incubation, prodromal, illness, decline, convalescence
Francisella tularensis can reproduce in
Mosquitoes
Rabbits
Mites
Fish
All of these choices
Which of the following genera do(es) produce endospores? (Mark all that apply. More than one answer may be correct)
(Hint: no endoSporeS)
Bacillus
Streptococcus
Clostridium
Staphylococcus
I am an Archean found in a cow's intestines. I am an obligate anaerobe and I produce gas that is also called "biogas". Who am I?
Sulfolobus
Halobacterium
Escheria
Yersinia
Methanobacterium
Bordetella pertussis belongs to the class of
alphaproteobacteria
betaproteobacteria
gammaproteobacteria
epsilonproteobacteria
Which of these enzymes is NOT used to detoxify oxygen products such as peroxide or hydroxyl radicals?
Superoxide dismutase
Catalase
Peroxidase
Coagulase
Which of the following is the correct order, from most general to most specific, of the modern taxonomic hierarchy?
Class, Domain, Family, Genus, Kingdom, Order, Phylum, Species
Kingdom, Family, Class, Phylum, Order, Genus, Species
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
Kingdom, Domain, Class, Phylum, Family, Order, Species, Genus
Domain, Phylum, Kingdom, Class, Order, Family, Genus, Species
A diagram showing evolutionary relationships is called
cladogram
a growth curve
a dichotomous key
phage typing
The phylum alphaproteobacteria DOES NOT include
plant symbionts
nitrogen fixers
bacteria of the genus Rickettsia
bacteria of the genus Helicobacter
Escherichia coli is an example for a(n)
microaerophilic organism
obligate anaerobe
facultative anaerobe
obligate aerobe
aerotolerant anaerobe
Acid-tolerant organisms
a) are acidophiles
b) are used in the food industry
c) absolutely require an acidic environment
a), b)
a), b) ,c)
You open a jar that has been in the refrigerator for a couple of weeks and find the contents do not look or smell right. What type of microbe has been growing in your refrigerator?
psychroduric
thermophile
mesophile
hyperthermophile
psychrophile
A microbe recovered from an environment sample grows on a medium composed of agar and a regular mix of salts. They grow faster in high CO2 conditions than low CO2 conditions. The organism is likely a(n)
heterotroph
autotroph
chemotroph
halophile
acidophile
A new single-celled organism is discovered living in an ant colony. Which of the following classification methods would be appropriate for identifying to which domain it belongs?
Phage Typing
Biochemical Tests
Physical Characteristics
Analysis of rRNA sequence
Serological tests
Bacterial binary fission results in ____________ growth.
Binary
Exponential
Linear
Arithmetic
Logarithmic
Most peptic ulcers are the result of colonization of the stomach by
Vibrio cholerae
Escherichia coli
Shigella dysenteriae
Salmonella enterica
Helicobacter pylori
The typical sign of primary syphilis is
A chancre at the site of infection
A widespread rash
Lymphadenopathy
Gummas in various organs
Paralysis
A bacterium inhabits the human nasal cavity where it obtains nutrients from secretions. It neither harms nor benefits the host. The relationship is therefore a(n) ___________ one.
commensal
mutualistic
parasitic
neutral
antagonistic
Symptoms are
subjective characteristics of a disease that only the patient can feel
objective manifestations of a disease that can be measured
objective manifestations of a disease that can be observed by others
laboratory tests used to diagnose a disease
True/False: Hyaluronidase and collagenase are two enzymes that help bacteria invade deeper into tissues
True
False
True/False: Yersinia and Legionella belong to the family of Enterobacteriaceae.
True
False
True/False: Staphylococcus aureus causes scarlet fever.
True
False
True/False: Treponema pallidum is able to cross the placenta and cause congenital syphilis.
True
False
True/False: A dichotomous key is a chart for a step-by-step testing process using a series of paired statements to identify a microbe.
True
False
True/False: The number of cells in a bacterial growth curve is typically plotted on a linear scale.
True
False
True/False: Orientia tsutsugamushi causes a disease called scrub typhus.
True
False
True/False: An infected person is only contagious during the illness stage of a disease
True
False
