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Q 1/12
Score 0
Chickenpox (varicella) is a highly contagious viral disease caused by the varicella-zoster virus (VZV).
A technician measured the concentration of antibodies to VZV in a person’s blood over a 120-day period. An event
occurred on day 30 that significantly altered the concentration of antibodies.
The concentration of antibodies over the 120 days is displayed in the graph below
60
an injection of antibodies to VZV into the person
an oral dose of antibiotics was given to the person
an exposure of the person to VZV
a booster vaccination against VZV for the person
Q 2/12
Score 0
Which one of the following is true of prions?
60
They cause some brain diseases.
They are unicellular
They contain nucleic acids.
They have an outer wall made of cellulose.
12 questions
Q.
Chickenpox (varicella) is a highly contagious viral disease caused by the varicella-zoster virus (VZV).
A technician measured the concentration of antibodies to VZV in a person’s blood over a 120-day period. An event
occurred on day 30 that significantly altered the concentration of antibodies.
The concentration of antibodies over the 120 days is displayed in the graph below
1
60 sec
Q.
Which one of the following is true of prions?
2
60 sec
Q.
Which one of the following statements is correct?
3
60 sec
Q.
Which one of the following is an example of a plant defence against a pathogen?
4
60 sec
Q.
A girl is carrying a piece of wood. A small piece breaks off and becomes embedded in her fi nger. The next day, she
notices an infl ammatory response occurring in her fi nger.
In the region around the small piece of wood embedded in her fi nger
5
60 sec
Q.
Autoimmune diseases are different from diseases caused by pathogens because in all autoimmune diseases
6
60 sec
Q.
Cell X is involved in the adaptive immune response, it had a large nucleus and an extensive rough endoplasmic reticulum. Cell X is:
7
60 sec
Q.
The inflammatory response is a defence mechanism that evolved in higher organisms to protect them from infection
and injury.
This response
8
60 sec
Q.
In early 2016, there was an outbreak of food poisoning in Victoria linked to the consumption of prepackaged lettuce.
In investigations carried out by the Department of Health and Human Services, several products tested positive for
the prokaryote Salmonella anatum
9
60 sec
Q.
A park ranger was injected with an antivenom serum to treat a snakebite. The treating doctor explained that the
injection would not protect him against future snakebites.
This is because antivenom serum is used to achieve
10
60 sec
Q.
In the search for a malaria vaccine, scientists have focused on a protein called circumsporozoite protein (CSP).
CSP is secreted by the malaria parasite and is present on its surface.
For the vaccination to work, the scientists want CSP to act as
11
60 sec
Q.
Temporal arteritis is a human disease in which the temporal arteries become inflamed. This causes headaches and
may result in blindness or stroke.
The sequence of responses in this disease is as follows.
