Bacterial and viral diseases in humans: TB, cholera, Helicobacter and Ebola | Starter Quiz | Oak National Academy

Which diseases are non-communicable?

• cancer

• measles

• COVID-19

• heart disease

• flu

Answer explanation

Flu, COVID-19 and measles are all caused by viruses which can easily spread from person to person.

Which picture shows a bacterium?

• 
• 
• 

Answer explanation

Bacteria don't have a nucleus but have one loop of DNA loose in the cytoplasm. Option B is a yeast cell which is a type of fungi. Option A shows the COVID-19 virus.

Match the word to its definition.

• pathogen

• An infectious agent.

• virus

• A single celled prokaryote.

• bacteria

• A microorganism that causes disease.

Answer explanation

Some types of viruses and bacteria can be pathogens.

Which of the following can be pathogens?

• plants

• viruses

• protists

• fungi

Answer explanation

Plants are not a microorganism that spreads disease to humans so they are not pathogens.

Which option best defines what a vaccination is?

• An injection.

• A substance used to stimulate the body's immune response against disease.

• A substance you take when you are ill.

• An antibiotic that can stimulate the body's immune response against a virus.

Answer explanation

Vaccines are used to generate an immune response. Not all vaccines are injections, for example the polio vaccine is given as drops into the mouth.