PAP Biology Warm Up

How is natural selection related to antibiotic resistance in bacteria?

How do we contribute to this process?

Objective

We will….review viruses and bacteria.

Bathroom passes due tomorrow. Test tomorrow will count on 6th six

weeks.

Virus & Bacteria Review

Question #1

What is the purpose of the projections on a virus?

Attach to the host

Question #2

How could a medicine stop a virus without destroying the host also?

Stop it from attaching to the host.

Question #3

Where would you find the DNA in a virus?

Within the protein coat

Question #4

Identify 3 differences between viruses and bacteria cells.

Genetic information (DNA/RNA or RNA or DNA)

Living/non-living Reproduction

Question #5

What is something that viruses and bacteria have in common?

Genetic information

Question #6

How is natural selection related to antibiotic resistance?

Bacteria that are resistant to antibiotics survive and reproduce increasing in number.

Question #7

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

Question #8

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

Question #9

List the level of classification.

Kingdom Phylum Class Order Family Genus Species

Question #10

Is the picture a bacteria or virus? Why?

Bacteria

Question #11

Is the picture a bacteria or virus? Why?

Bacteria

Question #12

Is the picture a bacteria or virus? Why?

Virus

Question #13

Is the picture a bacteria or virus? Why?

Bacteria

Question #14

Is the picture a bacteria or virus? Why?

Bacteria

Question #15

Is the picture a bacteria or virus? Why?

Virus

Question #16

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.

Question#17

How does HIV/AIDS infect its host and survive?

HIV becomes part of the host DNA….this is known as the lysogenic cycle.

Question #18

Necrotizing fasciitis known as the "Flesh-eating bacteria" is a misnomer, as the bacteria do not actually "eat" the tissue. They cause the destruction of skin and muscle by releasing toxins.

Question # 19

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

Question # 20

What type of infection is Salmonella?

Food poisoning

Question #21

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

Question #22

Name 2 things that bacteria do that help the environment.

Nitrogen fixation Decomposition

Question #23

Name some things that human use bacteria for….

Food production Genetic engineering

of medicines Mining Sewage

Question #24

Cancer can be caused by many different things including viruses. What type of viral infection a cancer caused by a virus?

Question #25

Which animal is the most different from the others?

Why?

Closure

I will….create a plan to study for tomorrow’s test.