Consult your notes from class about the general function of your cell. For specific cells, go to additional websites.
Websites:
Use the body system books to research your cell and its function.
Disease Research:
https://www.biointeractive.org/classroom-resources?keyword=Virus+explorer
https://my.clevelandclinic.org/health?
Vaccines for Disease and how they work Videos (awesome)
These are in other languages.