1 of 9

Slide Notes

DownloadGo Live

Virus And Bacteria

Published on Nov 18, 2015

No Description

PRESENTATION OUTLINE

Virus and Bacteria

Natalie Emma Vuk Cleon

STUCRURE

Bacteria:
Structure:
Some have a cell membrane maybe two
Some have flagella for movement
Generally surrounded by a cell wall composed of complex carbohydrates

Viruses:
Structure:
-core of nucleic acid surrounded by by a protein coat called called a capsid
-capsid can be DNA or RNA but not both
-core can be several to several hundred genes

Type

Bacteria:
Rod- bacilli
Sphere- cocci
Spiral- spirilla

Virus:
Round- T4 bacteriophage
Rod-shaped- tobacco mosaic acid
Many sided- influenza virus

REPRODUCTION

Virus:
They need and depend on living organisms in order to reproduce
rely on organisms to replicate their genes and reproduce

Bacteria:
Binary Fission
Replication of DNA and division in half
Asexual
Conjugation
Sexual involves exchange of genetic material
Donor genetic information transferred to recipient through bridge
Recipient cell has diff genes at end than the beginning

HOW IT CAUSES INFECTION

Bacteria:
damage cells and tissues by breaking down cells
releases toxins
need host cell, have leaky walls

Virus:
damages cells
Lytic cycle
Virus fills cells and they burst
Retroviruses copy genetic information backwards


GOOD

Bacteria:
used in the production o many products such as yogurt, cheese, pickles, wine, vinegar, etc.
It removes waste and poisons from water
synthesizes drugs
helps us digest food and make vitamins
recycles and decomposes dead material

Virus:
In a large population, when it decreases from death caused by viruses there becomes more resources available

Bad

Bacteria:
damage cells and tissues b y breaking down cells
releases toxins (posions)
can lead to diseases

Virus:
infection can cause damage to the cells
can cause cells to burst from lytic infection
can lead to horrible diseases
once infected, not much can be done

COMMON EXAMPLES

Virus:
smallpox. measles, rabies, AIDS, mumps, yellow fever, influenza, polio, ebola, etc.

Bacteria:
diphtheria, typhoid, syphilis, cholera, flesh eating bacteria, etc.

PREVENTION/TREATMENT

Bacteria:
antibiotics, drugs that attack and destroy the bacteria

Virus:
body's own defence
vaccines
symptoms can be treated, but once infected not much can be done