Which of the following types of disease is non-communicable?
Viral
Cardiovascular
Fungal
What are pathogens?
All microbes
Microbes which cause disease
All bacteria and viruses
Malaria is caused by which single-celled eukaryote?
Bacteria
Fungus
Protist
Which diseases below are both fungal diseases?
Crown gall disease and salmonella
Ash dieback and athlete's foot
Malaria and influenza
If 3 bacteria infect a cut and divide every 20 minutes, how many will there be after 2 hours?
192
96
48
During a disease such as influenza, when is the incubation period?
A few days after infection, when pathogen numbers are increasing rapidly.
A few weeks after infection, when pathogens are dying off.
Just after infection, when pathogen numbers are still very small.
Which pairs below are both examples of non-specific physical defences?
Mucus and platelets
Stomach acid and helpful gut bacteria
The skin and antimicrobial substances
How do white blood cells recognise pathogens?
The antigens of pathogens are 'self'
Their antibodies recognise the pathogens first
The antigens of pathogens are 'non-self'
How does the immune response the second time an organism is exposed to a pathogen compare with the first time?
The second time it is faster
The second time it is slower
The second time the response is the same
What are memory cells?
White blood cells left from a previous infection which can ingest and digest microbes
Clusters of antibodies which remain in the body between infections
White blood cells left from a previous infection which can make antibodies