Transcript Defence System & Viruses EQ

Leaving Certificate Biology
Defence System & Viruses EQ iQuiz
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What is meant by the term
immunity?
Getting a
vaccine
Resistance to
disease
Protection against
bacteria
Protection against
an infection
What is the purpose of a
vaccination?
To produce
antigens
To produce
antibodies
To kill bacteria
To kill viruses
What is an antigen?
A protein produced
by white blood cell
A type of white
blood cell
A vaccine
A foreign molecule
What is the role of a B
lymphocyte?
Produce
antibodies
Produce
antigens
Produce white
blood cells
Suppress immune
response
Why would you give an antibody
instead of a vaccination
It would be
quicker
They are more
readily available
To stop you getting
the disease
No vaccine
available
What is active immunity?
Producing
a vaccine
Production of your
own antibodies
Production of your
own antigens
Getting the flu
Name the two main chemical
components of a virus.
DNA and
nucleic acid
Protein coat and
nucleus
Proteins and fats
Proteins and
carbohydrates
What do viruses use to reproduce?
Proteins
The host’s cells
Genes
Chromatin
Which one of the following is an
example of the beneficial effect of
a virus?
Producing
cheese
Getting bread
to rise
Vaccine
production
Producing
alcohol
What is the purpose of a
vaccination?
To give you
the disease
To kill a viral
infection
To trigger antibody
production
To kill
bacteria
Why don’t doctors prescribe
antibiotics for the common cold?
Antibiotics only
kill the flu
Antibiotics don’t
kill viruses
The cold is a
bacterial infection
They are too
expensive
Why were young people more at
risk of becoming ill with swine flu
than older people?
Because they don’t
take vitamins
No previous
exposure to virus
They don’t keep
warm enough
They don’t eat
fruit and veg.
Which of the following is a disease
caused by a virus?
Athletes Foot
Ringworm
Polio
Strep throat
Which of the following is a type of
lymphocyte?
I
C
A
B
What is passive immunity?
Immunity
by vaccination
Transfer of
antibodies from
another organism
Immunity from
previous exposure
Introduction of
pathogen
Defence System & Viruses EQ iQuiz
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