VCU BIOL 209 - Viral Latency and Microbial Growth (3 pages)

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Viral Latency and Microbial Growth



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Viral Latency and Microbial Growth

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Norovirus & blodo type connection, efinition of viral latency, and explanation of microbial/bacterial growth


Lecture number:
8
Pages:
3
Type:
Lecture Note
School:
Virginia Commonwealth University
Course:
Biol 209 - Medical Microbiology
Edition:
1

Unformatted text preview:

BIOL 209 1st Edition Lecture 8 Outline of Last Lecture I Question Answer s II Classes of Viral Structures III Viral Genomes Diverse Structures IV Viral Growth V Viral Replication A Steps 1 Absorption binding to cell surface receptors 2 3 Entry Uncoating 4 Synthesis of viral components 5 Assembly of new virus 6 Release of virus Outline of Current Lecture I Norovirus Blood Type Connection A Norovirus definition B Question Answer II Viral Latency III Microbial Growth A Requirements B Sources of Nutrients C Question Answer IV Saprobes V Binary Fission VI Bacterial Growth A Exponential growth B Question Answer C Phases of population growth 1 Lag 2 Exponential 3 Stationary 4 Death D Conditions Effecting Growth Current Lecture I Norovirus Blood Type Connection A Norovirus non enveloped naked RNA virus that infects gut epithelial cells 1 Cells express the same blood types as found on your red blood cells These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute 2 Virus binds to blood group antigens B Question Answer 1 Question What mechanism do you think Norovirus uses to enter your gut epithelial cells Answer Endocytosis II Viral Latency A Some viruses have the option of persisting in a host cell hanging out for a while without killing it but reactivate later on B Some bacteriophages and retroviruses can integrate their genome into host genome and are replicated along with host genome 1 Some herpes virus genomes replicate as extrachromosomal plasmid each time the host cell replicates C Latency can also refer to conditions where host immune system is able to control a pathogen infection but not eliminate it III Microbial Growth A Requirements 1 A source of Carbon and other elements 2 Energy in order to synthesize components necessary for growth B Sources of Nutrients 1 Different microbes use different nutrient sources a Autotrophs use Carbon Dioxide as Carbon sources b



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