SLE334 EXAM COMPLETE QUESTIONS
WITH 100% VERIFIED ANSWERS
\.What Constitutes as upper Respiritory? - ANSWERS-Nasal cavity, pharynx, Larynx
\.What virus/es cause the common cold? - ANSWERS-Rhinoviruses and
caronaviruses
\.What treatments/vaccines are the available? - ANSWERS-No vaccines and
treatment of symtoms; runny nose sneezing, headache etc..
\.What is the mechanism of pathogenisis of the Common cold? - ANSWERS-
Infection through the Nasal epithilium`
\.what causes Tonsilitus - ANSWERS-Viruses ( rhinovirus, HSV1, Epsin Barr)
bacteria ( often Strep Pyogenes)
\.how is EBV transmitted? - ANSWERS-Transmitted through saliva; replicates in B
lymphocytes
\.Asscociations of EBV? - ANSWERS-Burkitt's lymphoma in african children, b cell
lymphoma
,\.What is a comon disease from EBV? - ANSWERS-Glandular fever
\.What is the Diagnosis of EBV - ANSWERS-Detection of Viral capsid antigen IGM,
PCR
\.What is Mumps - ANSWERS-A single stranded virus spread by airborn droplets
and infects salivary glands
\.What are the symptoms of Mumps? - ANSWERS-Foul taste, Decreased ability to
open mouth, Painful mouth, swelling of face
\.How to prevent Mumps? - ANSWERS-Vaccine (MMR)
\.Causative agent of anthrax - ANSWERS-Bacillus anthracis
\.Properties of Bacillus anthracis - ANSWERS-Gram +ve
Aerobic/faculative anaerobe
Spore forming
\.Bacillus anthracis's strain virulence is dependent on? - ANSWERS-Primarily its
poly-D-glutamic acid capsule, and its toxin which are on seperate viralence plasms
\.Anthrax toxin composed of? - ANSWERS-Oedema factor
Lethal factor
,Protective antigen
\.3 forms of transmission - ANSWERS-Gastro-intestinal
Pulmonary
Cutaneous
\.Pathogenesis of Bacillus anthracis - ANSWERS-Spore is engulfed by phagocytes,
inside the phagocyte the spore vegetates into a bacillus where it multiplies and
lyses the phagocytes releasing the bacillus into the blood stream.
Vegetative cells respond to CO2 levels and body temprature which activates the
viralent genes.
\.Parasite - ANSWERS-An organism that lives in or on the living tissue of a host
organism at the expense of a host
\.Pathogen - ANSWERS-A specific biological causative agent of disease
\.Bacteria - ANSWERS-Single celled organisms that exist either as free living cells
or colonies
\.Structure of gram positive bacteria - ANSWERS-Have one membrane with a large
amount of peptidoglycan
\.Structure of gram negative bacteria - ANSWERS-Small layer of peptidoglycan
between 2 membranes
, \.Gram stain steps - ANSWERS-Crystal violet
Iodine
Alcohol
Safarin
\.Bacteria replicate by what process? - ANSWERS-Binary fission
\.4 stages of bacterial growth? - ANSWERS-Lag
Log
Stationary
Death
\.Endospores are produced by what class of bacteria? - ANSWERS-Gram positive
\.4 types of gene transfer in bacteria? - ANSWERS-Transformation
Transduction
Conjugation
Transposition
\.How do bacteria produce disease? - ANSWERS-Some disrupt physiology by
growth or invasion
Most cause illness by producing toxins
WITH 100% VERIFIED ANSWERS
\.What Constitutes as upper Respiritory? - ANSWERS-Nasal cavity, pharynx, Larynx
\.What virus/es cause the common cold? - ANSWERS-Rhinoviruses and
caronaviruses
\.What treatments/vaccines are the available? - ANSWERS-No vaccines and
treatment of symtoms; runny nose sneezing, headache etc..
\.What is the mechanism of pathogenisis of the Common cold? - ANSWERS-
Infection through the Nasal epithilium`
\.what causes Tonsilitus - ANSWERS-Viruses ( rhinovirus, HSV1, Epsin Barr)
bacteria ( often Strep Pyogenes)
\.how is EBV transmitted? - ANSWERS-Transmitted through saliva; replicates in B
lymphocytes
\.Asscociations of EBV? - ANSWERS-Burkitt's lymphoma in african children, b cell
lymphoma
,\.What is a comon disease from EBV? - ANSWERS-Glandular fever
\.What is the Diagnosis of EBV - ANSWERS-Detection of Viral capsid antigen IGM,
PCR
\.What is Mumps - ANSWERS-A single stranded virus spread by airborn droplets
and infects salivary glands
\.What are the symptoms of Mumps? - ANSWERS-Foul taste, Decreased ability to
open mouth, Painful mouth, swelling of face
\.How to prevent Mumps? - ANSWERS-Vaccine (MMR)
\.Causative agent of anthrax - ANSWERS-Bacillus anthracis
\.Properties of Bacillus anthracis - ANSWERS-Gram +ve
Aerobic/faculative anaerobe
Spore forming
\.Bacillus anthracis's strain virulence is dependent on? - ANSWERS-Primarily its
poly-D-glutamic acid capsule, and its toxin which are on seperate viralence plasms
\.Anthrax toxin composed of? - ANSWERS-Oedema factor
Lethal factor
,Protective antigen
\.3 forms of transmission - ANSWERS-Gastro-intestinal
Pulmonary
Cutaneous
\.Pathogenesis of Bacillus anthracis - ANSWERS-Spore is engulfed by phagocytes,
inside the phagocyte the spore vegetates into a bacillus where it multiplies and
lyses the phagocytes releasing the bacillus into the blood stream.
Vegetative cells respond to CO2 levels and body temprature which activates the
viralent genes.
\.Parasite - ANSWERS-An organism that lives in or on the living tissue of a host
organism at the expense of a host
\.Pathogen - ANSWERS-A specific biological causative agent of disease
\.Bacteria - ANSWERS-Single celled organisms that exist either as free living cells
or colonies
\.Structure of gram positive bacteria - ANSWERS-Have one membrane with a large
amount of peptidoglycan
\.Structure of gram negative bacteria - ANSWERS-Small layer of peptidoglycan
between 2 membranes
, \.Gram stain steps - ANSWERS-Crystal violet
Iodine
Alcohol
Safarin
\.Bacteria replicate by what process? - ANSWERS-Binary fission
\.4 stages of bacterial growth? - ANSWERS-Lag
Log
Stationary
Death
\.Endospores are produced by what class of bacteria? - ANSWERS-Gram positive
\.4 types of gene transfer in bacteria? - ANSWERS-Transformation
Transduction
Conjugation
Transposition
\.How do bacteria produce disease? - ANSWERS-Some disrupt physiology by
growth or invasion
Most cause illness by producing toxins
