Download invasion of the viruses

Unit 5: Pathology
Notes
Name: _____________________________________________________
Date: ______________________
Pathogens
Disease: any change that disrupts the normal function of one or more body systems. There are two types of
diseases:
o Noninfectious: a disease that is inherited. It ______________________ spread from one person to another
o Infectious: a disease that ___________ be spread from one organism to another.
A PATHOGEN is a microbe (__________________________________________) that can cause an infectious disease
Pathogen #2: Virus
Definition:
____________________________________________
VIRUS PARTS (all viruses have these)
1. What it’s called: CAPSID
What it does:
2. What it’s called: GENETIC MATERIAL (DNA OR RNA)
What it does:
HIV Virus (photographed using an
electron microscope)
How are viruses like keys?
VIRUSES MUST BE INSIDE A CELL TO REPRODUCE!
How viruses hijack our cells:
#
Verbal Description
Visual Description
1
2
3
4
5
Why are viruses not considered living things?
Characteristics of living things
Characteristics of a
virus? (yes/no)
1.
2.
3.
4.
5.
6.
KEY QUESTION: Why could viruses have not have existed on earth before living things first appeared?
How to Viruses cause diseases? _______________________________________________________________________________________________
_____________________________________________________________________________________________________________________________
Examples of diseases caused by viruses: