Lesson: Viruses and Germ Theory
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#content #criticalthinking #community #collaboration #communication #creativity
Warm Ups, etc:
Koch's Postulate
Lecture Notes: #content
Viruses
- non-living infectious particles
- use cells to reproduce and spread
- incredibly small
- structurally fairly simple
- each virus of a type is essentially the same
Basic Virus - Nulcleic Acid and Protein Coat
More complicated - also have a protein envelope
Bacteriophage - specifically infect bacteria, have an "alien" shape
Replication-
Lytic Cycle - viral nucleic acid and protein coat are manufactured by cell. So many are produced that the cell ruptures and the virus spreads
Lysogenic Cycle - viral nucleic acid "hides" in cell's DNA, cell reproduces. Later, the genes are turned on and it re-enters the lytic cycle
Disease Prevention:
Sanitation - keeping the environment clean (clean water, waste water)
Hygiene - keeping yourself clean
Aseptic techniques - washing surfaces, tools with disinfectants
Vaccine - use a dead/disable virus to stimulate immunity
Objectives and Vocabulary: #content
BIO.4 The student will investigate and understand life functions of Archaea, Bacteria and Eukarya. Key concepts include
e) how viruses compare with organisms; and
f) evidence supporting the germ theory of infectious disease.
Virus
Nucleic Acid
Protein coat
Germ theory
Pasteur
Koch
Sanitation
Hygiene
Aseptic techniques
Vaccine
Activities, Assignments, Etc.
Diagrams - Viral structure & reproduction
Assignment - Viral & Bacterial Diseases
p 511 (#1-2)
p512 (#1 see p467, graph #2 only table 2, 3, 5)
p517 (1,4)
p519 Analyze question at bottom of page
p520 (2-5)