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WorksheetsCh8a/b - Epidemiology & Pathogens
Total questions: 36
Worksheet time: 18mins
How is TB transmitted between people?
direct skin-to-skin contact
direct injection
airborne droplets
body fluids
Which of the following is a mode of action of antibiotics?
destruction of essential viral metabolic pathways
blockage of DNA and RNA synthesis in bacteria
formation of a cell wall
prevention of bacterial invasion
Which of the following is a way bacteria become resistant to antibiotics?
bacterial flagella allow them to escape the antibiotic
bacteria incorporate the antibiotic into the cell wall
bacteria use the antibiotic as an energy source
bacterium produces enzymes that destroy the antibiotic
An epidemiologist using a controlled cohort study is conducting which step in the scientific method?
analysis
hypothesis
observation
experiment
Native in one area; constant
epidemic
endemic
sporadic
pandemic
A(n) ___________ is a disease that affects many individuals at once and spreads rapidly from person to person
epidemic
endemic
sporadic
pandemic
When a large number of people are affected worldwide
epidemic
endemic
sporadic
pandemic
When a disease occurs occasionally in a population
epidemic
endemic
sporadic
pandemic
Application of the scientific method to the field of disease
outbreak investigation
epidemiology
case study
cohort study
Studying the sudden appearance of a disease in a small, localized group of people
outbreak investigation
cohort study
case study
case control study
In-depth analyses of the experiences of one particular patient or a group of related patients
outbreak investigation
cohort study
case study
case control study
A branch of the United Nations dedicated to helping people attain higher levels of health:
WHO
CDC
FDA
FORT
Greatest killer of humans in history:
ebola
smallpox
tuberculosis
plague
Some pathogens only cause disease when toxins are present.
True
False
Diseases transmitted by animals or bugs are called:
insectoses
zoonoses
prodromal
viruses
If you are bitten by a mosquito and contract malaria.
biological transmission
mechanical transmission
Less than ____% of bacteria are pathogenic.
5
10
2
0.5
Bacterial shapes:
virus, viroid, prion
bacilli, cocci, spiral
square, circle, star
rod, circle, star
Drugs that interfere with bacterial cellular processes
antibiotics
antivirals
antibacterials
antifungals
MRSA stands for:
methicillin-resistant S. aureus
media-resistant S. aureus
microbe-resistant S. aureus
methylvirin-resistant S. aureus
Bubonic plague is caused by the bacterium
Yersinia pestis
Mycobacterium tuberculosis
Escherichia coli
Smallpox virus
Deadliest form of plague is:
septicemic
bubonic
pneumonic
smallpox
What kind of human pathogen does the mosquito carry that causes Zika, West Nile, malaria, dengue fever, etc.?
fungus
bacteria
virus
prion
What is the virus that has caused one of the most frightening epidemics of the twentieth century?
HIV
Ebola
Influenza
Smallpox
What makes it difficult to control the pathogens shown:
humans have this pathogen inside and outside of the body at all times
these pathogens are easily controlled
heat is ineffective against the pathogen shown
vaccines are challenged by the rapid evolution of the pathogens
Which virus causes flu-like symptoms and can attack the nervous system?
ebola
hantavirus
polio
measles
Why are fungal infections difficult to treat?
human and fungal cells are different
human and fungal cells are similar
fungi have become resistant to antibiotics
fungi use antibiotics as a fuel source and overgrow
The letter A in the figure shows which type of replication cycle?
a mitotic bacillus bacterial infection
a lytic viral infection
a lysogenic viral infection
a mitotic cocci bacterial infection
The letter B in the figure shows which type of replication cycle?
a mitotic bacillus bacterial infection
a lytic viral infection
a lysogenic viral infection
a mitotic cocci bacterial infection
All viruses are cell parasites
true
false
Which is smaller:
bacteria
fungi
virus
helminth
Which is largest:
bacteria
fungi
virus
smallpox
A typical virus consists of:
nucleic acid
capsid
envelope
all of these
Viruses can be destroyed by:
antibacterials
antibiotics
antivirals
antifungals
Most fungal infections are only serious if you are immunocompromised.
true
false
Malaria is caused by a:
bacteria
virus
prion
protozoa
