Bacteria
Are bacteria generally considered living organisms?
Yes
What do viruses need to reproduce?
A living host cell
What is a parasite?
An organism that lives on or inside another organism and gets nutrients from it
Name one type of fungus.
Mushroom, yeast or mould
What does the word "contagious" mean?
Able to spread from one person or organism to another
Are all bacteria harmful to humans?
No
Name one disease caused by a virus.
Influenza, COVID-19, measles, chickenpox, etc.
Name one type of parasite that can infect humans.
Tapeworm, roundworm, hookworm, lice
What type of fungus is commonly used to make bread rise?
Yeast
Name four types of organisms that can cause infectious diseases.
Bacteria, viruses, fungi and parasites
What do antibiotics treat: bacterial infections or viral infections?
Bacterial infections
How can viruses spread from person to person?
body fluids, contaminated surfaces,
Which insect commonly spreads malaria?
Mosquito
Name one fungal infection that can affect humans.
Athlete's foot, ringworm or thrush
What is an antibiotic used to treat?
Bacterial infections
Name one useful role bacteria play in the human body.
They help with digestion/gut health and other body functions
Why can't viruses reproduce on their own?
They need a host cell to provide the machinery and resources needed to replicate
How can people help prevent intestinal parasites?
Good hand hygiene, safe food preparation and drinking safe water
How can fungal infections spread?
Through direct contact, contaminated surfaces or contact with infected animals/people
What is an outbreak?
A sudden increase in cases of a disease in a particular place or group
Why can bacteria become resistant to antibiotics?
Genetic changes such as mutations, and the acquisition of resistance genes from other bacteria, can give them resistance.
What is the difference between a virus and bacteria?
Bacteria are living single-celled organisms that can reproduce independently; viruses require host cells to replicate
Do parasites always kill their host?
No
Why are fungi important to ecosystems?
They break down dead organic matter and recycle nutrients
What is herd immunity?
When enough people in a population are immune that the spread of an infection is reduced