Download SNC4M QUIZ REVIEW

Unit 1: Pathogens and Public Health
SNC4M UNIT 1 TEST REVIEW
Pathogens
Define pathogen, disease, transmission and provide an example of each.
Describe the difference/similarities between viruses and bacteria
Pandemic
What is the criteria that makes an outbreak an epidemic? A pandemic?
Why will Ebola not become a pandemic?
For a disease to be a pandemic it needs to be new. Why?
Using the Bubonic Plague, explain the terms: vector, reservoir and host. Use correct
examples of each in regards to the Bubonic Plague.
what caused the bubonic plague? how were people infected?
- why is the bubonic plague no longer a pandemic disease?
What caused the Spanish Flu? When was it and how many people died?
- how is the Spanish Influenza relevant to the 2009 pandemic?
Virus
Draw and explain the two viral replication cycles discussed in class. How are they
similar/different?
Are viruses alive? Why/why not?
What allows a virus to find and enter a cell? Why are some viruses specific with the cells
they infect but others are more general?
Explain the similarities in differences between H1N1 and HIV structure, function, method of
infection and replication.
Describe/draw the two possible viral replication cycles. how do they overlap?
Compare/contrast the lytic cycle for naked and enveloped viruses
How does a virus enter a cell? What makes it specific to one cell versus another?
HIV/AIDS
What does HIV & AIDS stand for?
What does AIDS do to the body, how do people die when they have this disease?
How does HIV get transmitted from person to person? Does HIV only infect humans?
What kind of virus is HIV? Explain what makes it this kind of virus (Hint: use the Central
Dogma to explain).
What type of cell does HIV infect? How does it find this specific type of cell?
Is HIV lytic or lysogenic? What does that mean?
What is an enzyme? Name and explain the three enzymes discussed in class regarding HIV.
What are the treatments and ways to prevent HIV infection or prevent HIV from becoming
AIDS.
Unit 1: Pathogens and Public Health
Influenza (H1N1)
What does the H and N stand for? Where are these proteins located on the virus? What do
they do?
Why do we need to get a seasonal flu vaccine as opposed to only once?
What species did the influenza virus originate? How did it become capable of infecting
humans?
What part of the body is Influenza most commonly found?
How is Influenza transmitted? What are ways to prevent this?
Define antigenic shift and antigenic drift and why they matter in regards to H1N1?
Why is the seasonal flu shot not effective against H1N1/2009?
How is H1N1 similar to HIV? How is it different?
How is influenza similar to tuberculosis? How is it different?
Tuberculosis
What causes tuberculosis?
How is it different from HIV/H1N1? How is it similar?
Approximately how many people in the world are thought to have the pathogen causing
tuberculosis? Why doesn’t everyone display symptoms?
Explain latent and active TB, what is the pathogen doing in the body for each of these?
How does tuberculosis get transmitted? How do you prevent it?
How long does it take to treat TB? Why is it important to complete all the medication given?
What are the symptoms of tuberculosis?
What is MDR-TB? How did an increase in MDR-TB occur? How could this have been stopped?
Is a tuberculosis outbreak a risk to Canadians? Why or why not?
Immune system
Compare the two types of immunity
Explain how the immune system works
Identify the three barriers of innate immunity and their components
How do cells of the immune system travel around the body?
Describe the role of pathogens in stimulating specific immunity
BONUS: Immune cells can recognize cells that have been infected by viruses. How? What
do you think would be the consequences of such an event?
Vaccines
What is the origin of vaccines?
Describe Edward Jenner’s contribution to vaccine development.
What single disease has been eradicated using vaccinations?
How do vaccines work?
Describe the four types of vaccines
Unit 1: Pathogens and Public Health
- what do they contain
- advantages/disadvantages of each
- examples
Preventing Diseases
Describe, with an example, non-medical ways to protect yourself from contracting:
- one insect-borne disease
- one air-borne disease
- one water-borne disease
- one sexually transmitted disease
- one food-borne disease