Lysogenic Cycle - Mr. Shanks' Class - Home



-314325-65405T. A. Blakelock Grade 11 Biology-5810255391153438525424815Diversity of Living Things171450300355Name: Class: Period: Warm Up Exercise:Place these classifications in order from largest to smallest.__________________________ __________________________ _____________________________________________________ __________________________ _____________________________________________________ __________________________ _____________________________________________________ __________________________ _____________________________________________________ ___________________________Brainstorm with a partner, what is a definition of 'Alive'? Scientists developed a general sense of what they considered 'Alive' through the Medieval Times and came up with this mon Characteristics of Living ThingsCriteriaDescription-ability to change the ______________ of some or all of its parts-ability to respond to ______________-orderly, progressive change in form (___________________________)-contains a large number of _______________ molecules and materials-________________ of all processes (or potential to perform processes) characteristics of living things. Scientists quickly realized that some living things did not satisfy all of these criteria, and some nonliving things satisfied too many of them. So, they developed a more accurate list of Fundamental Characteristics. Fundamental Characteristics of Living ThingsCriteria Description-Organized assembly of molecules into a ____________ unit (cells)-Ability to assimilate ________________ as well as materials to grow ad develop-Ability to create viable & ______________ offspring-Ability to pass on traits & characteristics to _______________-Ability to maintain a stable & functional _______________ environmentTAXONOMY: The branch of science dedicated to classification, especially organismsLevels of Classification1.__________________________ : ________________________ :2.__________________________ : ________________________ :3.__________________________ : ________________________ :4.__________________________ : ________________________ :5.__________________________ : ________________________ :6.__________________________ : ________________________ :7.__________________________ : ________________________ :CHARACTERISTTICS OF EACH KINGDOMCriteriaArchaebacteriaEubacteriaProtistaFungiPlantaeAnimaliaCell CountReproductionMobilityTropismHabitatCell WallExampleComplete this Chart for AnimaliaMAMMALIAAVESREPTILIAAMPHIBIAGNASTHOSTOMATA/ AGNATHABODY COVERINGFORM OF BIRTHLOCOMOTIONHEART CHAMBERSBLOOD TEMPERATUREHABITATExampleKINGDOM BACTERIANOTESFunctions of Each PartBACTERIAL REPRODUCTION A.B. C. BACTERIAL CLASSIFICATIONA. B. C. D. E. TOXINSEXOTOXINSENDOTOXINSDeadliest BacteriumVIRUSESAlive or not alive?(THAT is the question)DNA –RNA –Viral Life CycleVirus invade cells and force them to make more virusesGetting Into the CellBacteriophageAnimal VirusPlant VirusTaking OverDNA – Two TypesLytic CycleLysogenic CycleRNA Virus – two typesSimple RNARetrovirusH.I.V. Getting OutCell Lysis ExocytosisPart IIDNA and RNA are affected by viruses differentlyDNA Virus : Two TypesLytic Cycle -Very ___________, Destroys Cell DNA and replaces it with Viral DNA -Viral symptoms are __________________ Example: Signs and Symptons: - -Lytic CycleAttachment?— Virus attaches to the cell wall at a ___________________. Penetration?— The cell wall is weakened by the viral _______________, and the deoxyribonucleic acid (DNA) of the virus is injected into the host cell. Synthesis?— The DNA of the host cell is _______________, and the viral DNA takes over making viral proteins and viral nucleic acid. Assembly?— Viral coats of protein ______________ are assembled with the nucleic acids filling the cell with new virus particles. Lysis – ________________ dissolve the host cell membrane from within. The cell then bursts open.Release?— The newly formed virus particles are released, free to infect other bacterial cells. B. Lysogenic Cycle -Slow, combining viral DNA with cellular DNA -Viral symptoms are delayed Example: Signs and Symptoms: - -Lysogenic CycleThe lysogenic cycle proceeds in the same way as the _____________ except that the _________________becomes part of the host cell's DNA, and it does not immediately take over host cell.? The actual replication is ________.? Viruses that do not cause an immediate infection are referred to as temperate or latent.? They exist as a ________and can be dormant for years.?The virus can become active (virulent) years later.? Stimuli that bring about their activation include exposure to environmental factors like __________________________ .Auto Immune Deficiency Syndrome (AIDS) is an example of this type of virus.RNA Virus : Two Typesleft6036310A. Simple RNA Viruses - Takes over Cell _________________ directly - Avoids _________________ DNA entirely - __________________ or _____________ life cycle Example: Signs and Symptoms: - - B. Retrovirus - Uses an _________________________ to rewrite cellular DNA with viral RNA - Enzyme makes frequent mistakes so the retrovirus has a high ____________________________ rate - ________________ and ________________ life cycle Example: Signs and Symptoms: - - -Part IIIGetting OutCell Lysis ExocytosisBUT, IS A VIRUS ALIVE? Common Characteristics Additional Characteristics1. 1. 2. 2.3. 3. Can’t ________________ without infecting a living thing4. 4. Can ________________ within a host and kill it5. 5. 6.I. All Viruses are _________________________ and cannot live ______________________ II. Viruses can invade ____________________ cell types (plants, animals, etc.)III. Viruses must use the __________________ from other cells to “________________”Virus QuestionsWhat can you conclude about a virus based on how it invades cells?How is a virus able to avoid attack by cells of the immune system?A patient comes in to a physician’s office complaining of a sickness that came on rapidly following a trip to South America. The patient claims that he was in a clinic, sitting besideAn old man who coughed and spit up, and the patient thinks he may have been infected then. He says he was sick that same afternoon and ever since. Ruling out bacterial infection, what can the physician at least narrow her search to from the information provided? What is the characteristic difference between the Lytic and Lysogenic cycle?Describe one virus which infects the human body, including the following criteria: i)Name (Scientific and Common) ii) Where in the body does it infect? iii) What is the effect on the body? iv) Is it lytic or lysogenic? v) What, if any, treatment is there for the virus? vi) Where(worldwide) is the virus most prevalent?PRIONSNANOBESImportant Scientist:_____________________ ................
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