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Bacterial Cultures Day

Bacterial Cultures Day. And miscellany…. Learning Goals Yesterdays Recap Exit Cards Revisited Minds ON Homework Take Up Bacterial Cultures Lab Viruses in the News Exit Card. Lesson Objectives. We are / will be learning to…

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Bacterial Cultures Day

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  1. Bacterial Cultures Day And miscellany…

  2. Learning Goals • Yesterdays Recap • Exit Cards Revisited • Minds ON • Homework Take Up • Bacterial Cultures Lab • Viruses in the News • Exit Card Lesson Objectives

  3. We are / will be learning to… • Analyze the risks and benefits of human intervention (e.g. pesticide use, fish stocking, tree planting, antibiotic use and creation etc.) • Analyze how climate change could impact the diversity of living things (e.g. Global warming, increase in precipitation) • Become familiar with terms such as: species diversity, structural diversity, bacteria, fungi, binomial nomenclature, morphology • Classify, apply, and draw dichotomous keys to identify and classify organisms according to kingdom • Explain concepts of taxonomic rank such as genus, species and taxon • Compare/contrast characteristics of prokaryotes, eukaryotes and viruses • Compare/contrast anatomical and physiological characteristics of organisms representative of each kingdom • Explain structural and functional changes of organisms as they have evolved over time • Explain why biodiversity is important for maintaining viable ecosystems Learning Goals

  4. Bacterial Lab (collecting cultures) • Viruses • What is it: microscopic organism consisting of genetic material (RNA or DNA) surrounded by a protein, lipid (fat), or glycoprotein coat. • Exists between living and non-living (lacks characteristics of six Kingdoms) • Parasitic existence • Examples: Measles, AIDS, SARS • Characteristics: Capsid, nucleic acid • Shapes • Specificity: Viruses must enter cells, are generally selective and only enter specific hosts • Reproduction: Four stages: Attachment and entrance; synthesis of protein and nucleic acid units; assembly of the units; release of new virus particles • 2 Cycles: Lytic: Cell bursts open; Lysogenic: Cell breaks open Yesterday’s Recap

  5. What does streptobacilli and staphylococci look like: Why is algae not Planate? What are the characteristics? Algae = Protista Single celled (Plantae are multi) Both plants and algae: Eukaryotes Autotrophs Asexual or sexual Exit Cards Revisited

  6. http://www.ted.com/talks/jonathan_eisen_meet_your_microbes.htmlhttp://www.ted.com/talks/jonathan_eisen_meet_your_microbes.html Minds ON: TED Talk: Meet Your Microbes

  7. Classification Homework Take Up

  8. We will be looking at our cultures to see if and what type of bacteria our cultures have grown • We will be discussing lab report expectations / exercises Bacterial Cultures Lab

  9. Activity Sheet • Formal Cover Page, Introduction ( includes a purpose, hypothesis and prediction), Methods/Experimental Design, and Conclusion • Attach the Activity Sheet as an Appendix Lab Report

  10. Hypothesis: The focus of the researcher’s “belief” about what they think will happen: “It is hypothesized that there will be harmful bacteria present in the girl’s bathroom toilets, on a lock on a locker and on a cell phone. It is further believed that there will be more bacteria on the phone than in the bathroom or on the lock.” • Prediction: Specifies the exact outcome expected and the reason behind it. (try “if, then, because”) “Ifthere is harmful bacteria present in the…, then the cultures will reveal more harmful bacteria present on the …. than the.... . This will occur because….” The Hypothesis and Prediction

  11. The class will separate into groups of 5. • Each group will receive an article that they are responsible for reading, summarizing and taking a stand on. • Each group will informally share their ideas with the class. Viruses in the News

  12. How are the two types of bacterial reproduction (Binary Fission and Conjugation) different? Explain briefly. Exit Card

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