Communicable (infectious) diseases Flashcards
(11 cards)
What are pathogens?
They are microorganisms that cause infectious disease.
What types of microorganisms can be pathogens?
Viruses, Bacteria, Fungi, Protists
How can pathogens be spread?
By direct contact, by water, by air
What can bacteria produce that affects the body?
Poisons (toxins).Toxins can damage tissues and make us feel unwell.
How do viruses reproduce?
Inside cells.This process causes cell damage.
Define the term pathogen.
A microorganism that causes a disease.
What are diseases caused by pathogens called?
Communicable diseases (These diseases can be transferred from one person to another.)
Fill in the blank: Pathogens may be ______, bacteria, fungi, or protists.
viruses
True or False: All pathogens can only infect animals.
False (Pathogens can infect both plants and animals.)
Fill in the blank: Viruses live and reproduce inside ______.
cells
What is one effect of toxins produced by bacteria?
It can damage tissues
and make us feel unwell