 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 6 th 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 "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. misnomertoxins

 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.