Inquiry 9/18 and 9/21 Please prepare for a warm-up! Have your Semmelweis flowchart and q’s ready for stamping.

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Presentation transcript:

Inquiry 9/18 and 9/21 Please prepare for a warm-up! Have your Semmelweis flowchart and q’s ready for stamping

Warm-Up 9/18 and 9/21 List 10 diseases that you know of. Next to each one, write if it is caused by bacteria (B) or virus (V).

Learning Targets I can explain how an experiment can be both systematic and non-linear. I understand the different causes, prevention, and treatments of bacterial and viral diseases. I can read scientific articles with skepticism and properly question the validity of the findings.

Semmelweis Flowchart Check your flowchart with mine and make changes, if needed Discuss the two questions with your group and be prepared to share: Then, explain why is it both systematic and non-linear, using events/evidence from the article. (3-4 sentences) Add to your answer! See the T-chart on the board.

Viruses Your friend, the flu

VIRUSES Organisms that bridge between living and non-living things. Composed of: a capsid (outer coating made of protein) and DNA or RNA

Why are viruses considered ‘not alive’? No nucleus, cytoplasm, organelles or cell membrane Cannot reproduce through binary fission or mitosis They are not cells; they are parasites No control of movement outside cells

Shapes of Viruses

A Viral Variation Prions Prions – glycoprotein; Mad Cow Disease- causes Creutzfeldt Jakob Disease in humans.

Reproduction of Viruses Lytic cycle Lytic cycle – virulent strains; cycle occurs in 5 phases (1-2 days) The virus enters a cell, makes copies of itself and causes the cell to burst.

The Flu and The Cold

Reproduction (con’t.) Lysogenic cycle Lysogenic cycle – may be dormant for months or years The virus injects its DNA into the DNA of the host cell, and when DNA is copied, a copy of the viral DNA is also made. Ex: herpes (genital or oral)

Lysogenic and Lytic Cycles

Prevention of Viruses Vaccines are made of genetically weakened strains of the virus. Vaccines prompt the immune system to create antibodies to fight viruses West Nile Virus Vaccine

Treatment of Viruses Antibiotics DO NOT work. Viruses don’t have a cell wall for antibiotics to break down. There are some “anti-viral” drugs that can help to fight viruses. Most of the time there is nothing that will help you kill of the virus. It is up to your immune system to do the work.

Examples of Viruses Chicken Pox Small Pox Ebola Flu HIV Hepatitis (A,B,C,etc) Cold Herpes I & II Measles, mumps, rubella HIV budding off from a human cell

Bacteria and Virus Comparison Chart Using your notes, complete the comparison chart. It will be an important tool in reviewing for next week’s test (Thurs/Fri).

Short Break! Please log in to a computer and find my website! Google Hardtke and Tahoma

Learning Targets I can explain how an experiment can be both systematic and non-linear. I understand the different causes, prevention, and treatments of bacterial and viral diseases. I can read scientific articles with skepticism and properly question the validity of the findings.

Valid vs. Deceptive Assignment On the online links page of my website, choose one of the three articles to read Then, come up with 10 questions for the researcher to uncover how valid the claims in the article are. DO THIS ON THE BACK OF YOUR CHART. HW: Choose the best 5 questions. What are high quality answers to those questions that would make you think the results are valid?