3834 1125 end cell replication biosynthesis nucleic

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Unformatted text preview: THAT INFECT BACTERIA. 38:34 11/25 END Cell replication: Biosynthesis: Nucleic acid replication (dsDNA) Synthesis of protein (RNA protein) Divide Viral replication: START 12/2 Attachment Penetration ENSLAVEMENT OF HOST CELL, ENOME IS REPLICATED, MORE Biosynthesis: GAPSID MATERIAL IS CREATED C Nucleic acid replication (dsDNA/ssDNA/ Text dsRNA/ssRNA) Synthesis of protein (RNA protein) ASSEMBLE INTO INTACT VIRON Text EITHER DNA Assembly VIRUSES CAN BENOT BOTH OR RNA, SS OR DS EITHER OR, BUT Release/Lysogeny RELEASE OCCURS DUE TO PRODUCTION OF SUBSTANCE THAT DISSOLVES THE CELL WALL OR CAUSES IT TO BURST. VIRUS HAS SMALL AMOUNT OF LYSOZYME THAT ALLOWS PENETRATION OF THE PEPTIDOGLYCAN LAYER. PENETRATION WORKS LIKE A SYRINGE, ONCE THE TAIL PIPE LANDS, IT PENETRATES THE PEPTIDOGLYCAN, IT CONTRACTS AND INJECTS THE DNA INTO THE CELL, BUT THE CAPSID IS LEFT OUTSIDE Viral replication: Text Viral replication: ADHESIN IS VIRUSES DO NOT HAVE METABOLIC ENZ. THUS, REQ BIOSYTNH. TAIL PLATE FOUND IN TAIL PLATE Text ADHESION/PENE. HOST GENOME INCORP. LYSO. Lysogeny LYSOGENY: VIRAL GENOME CAN INJECT ITSELF INTO THE HOST GENOME. THE VIRUS DOES THIS TO HIDE OUT WITHIN THE HOST CELL INSTEAD OF GOING THROUGH LYTIC CYCLE. ADVANTAGE OF THIS IS THAT BY HIDING OUT IN THE GENOME, HOST CELL WILL REPLICATE MULTIPLE TIME AND WHEN IT’S READY, THE VIRAL GENOME COULD THEN ENTER THE LYTIC STAGE AND BURST OUT WITH EXPONENTIAL NUMBERS. EX: UV LIGHT IS ENOUGH TO BRING LYSOGENIC PHAGE OUT OF RESTING PHAGE AND GET IT TO REPLICATE. Virus interation with animal cells Endocytosis Fusion Budding 12/2 12:49 LIPID BILAYER ENVELOPE VIRUS: HAS LIPID BILAYER MEMBRANE “ENVELOPE” MADE FROM HOST CELL MEMBRANE Virus interaction with animal cells Fusion ADHESINS HOW DO VIRUS GET INTO ANIMAL (EUKARYOTE)...
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This document was uploaded on 02/25/2014 for the course MICROBIOLO 101 at San Jose State University .

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