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Human Biology: HIV

Date post:11-Jul-2015
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  • Mark the Exam Questions: What do you think the mark scheme should say?

  • Hand-washingAseptic TechniqueLid open for shortest timeBunsen burnerClean work areaTape plate afterwards

  • Patient A came in to see his doctor, he has had a nasty flu for a week and wants medicine to treat it. The doctor prescribes penicillin. Is this right?

  • Memorise...

  • Recreate!

  • Virus StructureGenetic Material either DNA or RNA

    Protein coat called capsid made of capsomeres

    Small: Smaller than bacteria

    Reproduce inside host

  • HIVCapsid is cone shaped

    Contains enzyme: Reverse Transcriptase

    Retrovirus

  • Spread of HIVSexual IntercourseSharing needles Blood TransfusionAcross Placenta

  • How HIV Causes Disease

  • Extension:A new antiviral therapy is being designed against integrase, a HIV enzyme that is used by the virus to integrate its genetic material into the host cells DNA. Explain how this type of drug could disrupt virus replication without affecting the host cell

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