
How is natural selection related to
antibiotic resistance in bacteria?

How do we contribute to this process?

We will….review viruses and bacteria.
Bathroom passes due tomorrow.
 Test tomorrow will count on 6th six weeks.


What is the purpose
of the projections on
a virus?

Attach to the host

How could a
medicine stop a virus
without destroying
the host also?

Stop it from
attaching to the
host.

Where would you
find the DNA in a
virus?

Within the protein
coat

Identify 3 differences
between viruses and
bacteria cells.

Genetic information
(DNA/RNA or RNA or
DNA)
Living/non-living
Reproduction



What is something
that viruses and
bacteria have in
common?

Genetic information

How is natural
selection related to
antibiotic resistance?

Bacteria that are
resistant to
antibiotics survive
and reproduce
increasing in
number.

Why do antibiotics
destroy bacteria but
do not cause harm to
viruses?

Antibiotics disrupt the
life process of bacteria
and viruses do not
perform these
processes so they are
not harmed by
antibiotics



What is the order of
a viruses
reproductive cycle?
(lytic infection)





Virus attaches to
host
Virus injects DNA or
RNA
Host cell transcribe
and translate viral
genes
Host synthesize virus
proteins instead of
own
Virus self-assemble
Virus burst from cell
Virus infects new
cells

List the level of
classification.
Kingdom
Phylum
Class
Order
Family
Genus
Species

Is the picture a
bacteria or virus?
Why?

Bacteria

Is the picture a
bacteria or virus?
Why?

Bacteria

Is the picture a
bacteria or virus?
Why?

Virus

Is the picture a
bacteria or virus?
Why?

Bacteria

Is the picture a
bacteria or virus?
Why?

Bacteria

Is the picture a
bacteria or virus?
Why?

Virus

How does a vaccine
work?

A vaccine is a
weakened or dead form
of the disease that
allows our immune
system to create
memory cells that will
recognize the disease if
it enters the body and
allow the immune system
to destroy it before it
harms us.

How does HIV/AIDS
infect its host and
survive?

HIV becomes part of
the host DNA….this is
known as the
lysogenic cycle.

Necrotizing fasciitis
known as the "Flesheating bacteria" is a
misnomer, as the
bacteria do not
actually "eat" the
tissue. They cause
the destruction of
skin and muscle by
releasing toxins.




What is the common
name for influenza?
What body system
does it harm?
What does it do to
this body system?


Flu
Respiratory System
Cells become
swollen and
inflammed

What type of
infection is
Salmonella?

Food poisoning

Give reasons why it is
dangerous to take
too many antibiotics.



Allow for bacteria to
become resistant to
antibiotics
Harm the good
bacteria in our body
Antibiotics may lose
their effectiveness if
used too much

Name 2 things that
bacteria do that
help the
environment.


Nitrogen fixation
Decomposition

Name some things
that human use
bacteria for….




Food production
Genetic engineering
of medicines
Mining
Sewage

Cancer can be
caused by many
different things
including viruses.
What type of viral
infection a cancer
caused by a virus?

Which animal is
the most
different from
the others?

Why?

I will….create a plan
to study for
tomorrow’s test.