VIROLOGY VIROLOGY (STUDY OF VIRUSES)
Jan 04, 2016
VIROLOGVIROLOGYY
(STUDY OF VIRUSES)
A tiny, nonliving particle that is…
VIRUS:*Latin for “poison” or “slimy liquid”
Definition:
1…smaller than a cell
2…not considered a "living” organism
3…virulent - can cause disease
A Virus is a parasite
invades living cells -
can only "live"(survive/reproduce) within a cell
Where do viruses come from?
1. What does Genesis tell us?
2. How could viruses have fulfilled a GOOD purpose?
3. How do you see the mark of sin on even thesevery small pieces of God’s creation?
What do we KNOW?
Properties of Viruses(what they look like and other stuff like that!)
*consist of DNA..
*..or RNA
This is their geneticmaterial
Size
*smaller than smallest bacteria cell
(Properties of viruses, continued…)
Shapes-
Rod, brick, thread, or bullet..or may have more complicated structures almost
like ROBOTS
(virus shapes, continued..)
Rabies Ebola
InfluenzaEarly Italian scientistsThought this illness was caused by the INFLUENCE of the starsAnd planets..
Hepatitis
Polio
Rhinovirus(common cold)
Rotavirus
Rabies
Polio
Dr. Jonas Salk 1914-1995
Influenza
Ebola
Smallpox
Edward Jenner
How do viruses (most) attack cells and make us sick??
Let’s use the T4 bacteriophage as an example:
T4 bacteriophage is a virus that looks a lot like an alien landing pod------>
With its six legs, the bacteriophage attaches to the surface of the much larger bacteria Escherichia coli (E. coli).
Once attached, the bacteriophage injects DNA into the bacterium. The DNA instructs the bacterium to produce masses of new viruses.
So what happens to the bacterium?
So many new “baby” viruses are produced
that the E. coli BURSTS!!
This process of bursting is called LYSIS.
Here's what an actual population of E. coli looks like as it is wiped out by T4 bacteriophage:
Now THAT’S a NASTY virus!