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bio 109

bio 109

Description

School: University at Buffalo
Department: Biology
Course: BIO 200
Term: Fall 2016
Tags:
Cost: 50
Name: Lecture Guide 11
Description: Viruses and the organisms to know
Uploaded: 11/09/2016
3 Pages 88 Views 0 Unlocks
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Why were prions originally called slow viruses?




How are prions different than viruses?




Why do some scientists argue that viruses are not alive?



"ORGANISMS” TO KNOW • Corona virus • Tobacco mosaic virus - plant virus, helial capsid shape • Adenovirus - animal wirus, icosahedral shape AROSADES • Influenza - animal virus, helial capsule within envelope HOSI Sheep • Scrapie Studyso Cow S . Bovine spongiform encephalopathy (Mad-Cow Disease) OTSES Study Soup Deer/EDon't forget about the age old question of chang corp. has $375,000 of assets, and it uses only common equity capital (zero debt). its sales for the last year were $595,000, and its net income was $25,000. stockholders recently voted in a new management team that has promised to lower costs and ge
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Don't forget about the age old question of structural antinatalism
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We also discuss several other topics like csc3110
We also discuss several other topics like the river which carries the most traffic in europe and is the continent's most important inland waterway is the:
lk. Chronic wasting disease Humans. Creutzfeldt-Jakob disease 3) Study Soup udy Soup Vinises vary in size and the seriousness lefjualf of a virus does not depends on its size. StudySoup @ Viral Reproduction Cycle • Vinus entire a cell and substances from within a cell strip of the capsid layer The RNA or DNA is released and infects the manufacturing system of the cell. The cell then gnores its own chemical needs to produce viruse The cell is sometimes destroyed and verises are released to inject other cells. studyson Study Soup Study Soup @ Stud 43 Lecture o pron OUD complex viruses 7. Binal - binary-both icosahedral and helical shape 8. Bacteriophage - ingets and replicates within a bacteruim 9. The basics of viral replication -virus repliation is parasiti, infection u replication The virus tricks the host cell to produce virus procent 10. Why do some scientists argue that viruses are not alive? Why do other scientists (and your book) disagree? Lacks essential systems necessary for metabolic por metabolic function. unetion but they consist of muulen auds. 11. TSE and some examples one condicions Common Transmissable Spongiform Encephalopathies - progres onow that aspect the brain and nervous system a 12. How are prions different than viruses? Do not contain DNA are do not and etic material contain an transmitted via protein. 13. Why were prions originally called slow viruses? Years pass when one individual is nected and the disease can be detected. Time between transmission and detection is 14. Prion “replication" when a normal protein comes into contact with a prion, it changes configuration and takes on the prion shape. 15. How is the traditional (5 or 6 kingdom) view of the tree of life biased? Tips for each of the kingdoms and organisms. Protists are a paraphy leer group. Each groud has equal weight but it does not .. 16. Three domain model Bacteria , Archaca, Eukarya - each group is monophyletic. V 17. LUCĂurgery All life shares some traits ancestor to all liye on earth. LAST UNIVERSAL COMMON ANCESTOR 18. Traits shared by all life-forms - plasma membrane bound cells, semi-conservative DNA replica to encode proteins, use genetic code to produce those protein 19. Key traits common to bacteria and archaea lunicellular, binary session, un-enclosed DNA curcular chromosome, to organelles, asexual 20. Defining traits of eukaryotes multicellular, compartmentarized sexual 21. How is the new eukaryotic tree different from older views? Plants, jungi are yound on the tree. Protiste - eukaryotes that are not plant jungi or animals. PEOPLE TO KNOW replication, DNA onservative DNA tudy Soup (@stud • No new people for lecture 11 LECTURE 11 OUTLINE StudySoup Viruses and the Nature of Life 1. Life or not life? 2. What are viruses? 3. Virus structure and reproduction 4. Slow viruses??? Study Soup Study Soup The Tree of Life 1. The real tree of life vs.... 2. our view of the tree a. Our view is biased 3. The three domain model is a better system 4. Diversity is noted in different ways for different organisms 5. Bacteria and Archaea 6. The protists are not monophyletic 7. Plants, fungi, and animals are (slightly) more understood Study Soup StudySoup rruses - evolved from living things, ano KEY TERMS/CONCEPTS a organized 1. What is life? - rebudtis tsey protein coat (caspid 2. Virus structure - DNA OG RNA. urular linear genetic Single or double standed 3. Capsid/protein coat - StudySoup StudySoup that containe CO nuclein and may be lineer or chrular. • Viruses do not have cytosol. and no plasma membrane. virus is not a 4. Viral hereditary material - Inside the sid, the core nucleotides I either DNA or RNA but never both. 5. Virions - Not cells, individual virus particles 6. Helical and Icosahedral shapes - solid made with 20 equilateral triangles. it maximizes space structure. I holds more 41 in less space) cell.

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