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2 Virus Structure
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Virus Virus StructureStructure
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Virus Virus ReproductionReproduction
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Virus v. Virus v. BacteriaBacteria
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Bacteria Bacteria StructureStructure
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Bacteria Bacteria InfoInfo
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Mrs. A!Mrs. A!
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What 2 things What 2 things make up a make up a
virus?virus?
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Genetic Material Genetic Material and Protein Coatand Protein Coat
(25pt. Bonus: (25pt. Bonus: Capsid)Capsid)
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A capsid is A capsid is made up of…made up of…
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CapsomeresCapsomeres
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The following is The following is an example of an example of what type of what type of
virus?virus?
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BacteriophageBacteriophage
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List 2 List 2 differences differences
between between viruses and viruses and
living things.living things.
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No cellsNo cellsNo reproduction No reproduction
on ownon ownDo not use Do not use
energyenergyDo not maintain Do not maintain
homeostasishomeostasisEtcEtcBoard
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What is the function What is the function of reverse of reverse
transcriptase in a transcriptase in a virus?virus?
Give an example of Give an example of a virus that a virus that
contains it.(25 pt contains it.(25 pt bonus)bonus)
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Converts RNA to Converts RNA to DNA so genetic DNA so genetic material can be material can be
incorporated into incorporated into hosts genomehosts genome
*HIV*HIVBoard
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Name the Name the cycle in which cycle in which viruses infect viruses infect
a cell and a cell and begin begin
reproducing reproducing right awayright away
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Lytic CycleLytic Cycle
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When a virus When a virus incorporates its incorporates its
DNA into the DNA into the genome of the genome of the host cell, the host cell, the
combined DNA is combined DNA is called a…called a…
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prophageprophage
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True or False: A True or False: A virus can switch virus can switch
between the lytic between the lytic and the and the
lysogenic cycle?lysogenic cycle?
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TRUETRUE
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Which is likely to remain Which is likely to remain dormant in your system dormant in your system
longer without longer without symptoms… a virus symptoms… a virus
going through the lytic going through the lytic cycle or one going cycle or one going
through the lysogenic through the lysogenic cycle? (WHY!)cycle? (WHY!)
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Lysogenic Lysogenic because the viral because the viral DNA is dormant DNA is dormant within host DNA.within host DNA.
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Give 2 examples of Give 2 examples of what might cause a what might cause a
virus using the virus using the lysogenic cycle to lysogenic cycle to
enter the lytic enter the lytic cycle.cycle.
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Stress, Stress, environmental environmental
change, sickness, change, sickness, etcetc
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These can grow, reproduce and carry out respiration
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BACTERIA
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Needs a living host Needs a living host to reproduceto reproduce
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VIRUSVIRUS
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Smaller in size Smaller in size compared to the compared to the
otherother
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VIRUSVIRUS
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Other life forms Other life forms most likely most likely
evolved from evolved from themthem
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BACTERIABACTERIA
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Have cell wall Have cell wall which give which give
structure to the structure to the organism, but do organism, but do
not have a not have a nucleusnucleus
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BACTERIABACTERIA
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These structures These structures are the site of are the site of
protein synthesisprotein synthesis
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RibosomesRibosomes
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Bacteria are Bacteria are prokaryotic cells. prokaryotic cells.
List two List two characteristics of characteristics of prokaryotic cells prokaryotic cells
that are not shared that are not shared by eukaryotic by eukaryotic
cells.cells.
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No Nucleus/No No Nucleus/No membrane bound membrane bound
organellesorganelles
Small and SimpleSmall and SimpleBoard
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True or False: Pili are used for movement in bacteria
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False25 Bonus pts. For Flagellum
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Draw and label the 3 shapes that bacteria can be.
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Cocci (sphere)Bacillus (rod)
Spirochete (spiral)
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Spores of anthrax Spores of anthrax travel through the air travel through the air
in a dormant state in a dormant state until they reach the until they reach the host. What structure host. What structure protects the DNA of protects the DNA of this bacteria during this bacteria during this dormant state?this dormant state?
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EndosporeEndospore
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What is the term for What is the term for the type of asexual the type of asexual
reproduction reproduction performed by performed by
bacteria?bacteria?
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Binary FissionBinary Fission
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List 2 ways in List 2 ways in which bacteria which bacteria
can obtain can obtain variation within a variation within a
species?species?
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MutationsMutationsconjugationconjugation
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Photosynthetic Photosynthetic autotrophs and autotrophs and
heterotrophs use heterotrophs use what as their what as their
energy source?energy source?
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SunlightSunlight
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What is the What is the difference between difference between aerobic organisms aerobic organisms
and anaerobic and anaerobic orgnaismsorgnaisms
(Bonus 25 pts: what (Bonus 25 pts: what could be an example could be an example
of anaerobic of anaerobic organism)organism)
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Aerobic require Aerobic require oxygen and oxygen and
anaerobic do not.anaerobic do not.ArchaeaArchaea
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List the three List the three types of types of
heterotrophic heterotrophic bacteria and give bacteria and give
an example of an example of what each might what each might
do.do.
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ParasiticParasiticMutualisticMutualistic
DecomposingDecomposing
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What is this What is this BacteriaBacteria
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BacillusBacillus
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What is this What is this BacteriaBacteria
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CocciCocci
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What is this What is this BacteriaBacteria
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spirilla
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Name of this processName of this process
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ConjunctionConjunction
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What type of cleaning What type of cleaning agent is thisagent is this
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AntisepticAntiseptic
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