Which statement about immunity is correct?
Passive immunity involves the body making its own antibodies
Passive immunity involves receiving antibodies
Active immunity involves receiving antibodies
Which of these is one of the main problems with bacteria?
They are killed by antibiotics
They produce toxins
They cause measles and mumps in young children
What is a 'pathogen'?
A disease
A disease-causing microorganism
A type of disease
Which of these is one of the main problems with viruses?
They damage the host cell when they reproduce
They cause cholera and typhoid in poor areas
What is one of the functions of white blood cells?
White blood cells carry oxygen in the bloodstream
White blood cells produce antigens that destroy pathogens
White blood cells ingest and destroy pathogens
Which of the following is a function of antibodies?
To engulf pathogens
To lock onto antigens
To produce toxins
How do antibiotics work
They can stop bacteria from reproducing
They can stop viruses from reproducing
They can stop toxins poisoning the tissue of the host
What can vaccinations involve?
Injecting a dead form of the disease to stimulate immunity
Injecting an inactive form of the disease to stimulate immunity
Injecting an inactive form of the pathogen to stimulate immunity
It is important to use antibiotics carefully because:
antibiotics are very expensive
antibiotics could kill harmless viruses as well as harmful ones
over-use can lead to the development of resistant bacteria
