Chapter 9 / 6 short lessons
Infectious diseases
Separate the pathogen from the disease, trace how it spreads, and explain how vaccines and antibiotics act differently.
G3 Pure Biology / K325 / 2027 syllabus
What do you think?
Influenza is caused by a virus. Why does an antibiotic not treat the influenza virus?
Lessons
0 of 6 marked as readPathogen, disease and route
Distinguish infectious from non-infectious disease and identify routes of pathogen transmission.
About 5 minBacteria and viruses
Compare a typical bacterium and virus, including their genetic material and reproduction.
About 5 minInfluenza and pneumococcal disease
Identify the causes and typical signs or symptoms of influenza and pneumococcal disease.
About 5 minBreaking the transmission chain
Explain how influenza and pneumococcus spread and how transmission can be reduced.
About 5 minVaccination and immune memory
Explain how vaccination prepares white blood cells for a later encounter with a pathogen.
About 5 minAntibiotics and resistance
Explain antibiotic targets and how selection increases the proportion of resistant bacteria.
About 6 minWhat you will be able to do
- Distinguish a pathogen, its disease and its transmission route.
- Compare bacterial and viral structure and reproduction.
- Explain vaccination using immune memory.
- Explain antibiotic action and the selection of resistant bacteria.
Spaced review
Remember this chapter
Save this chapter's 18 recall cards. We'll bring each one back just before you're likely to forget it, a few minutes a day.
Free account needed, so your cards follow you to any device. Notes and quick recall stay free without one.