Microbiology
'Spontaneous generation’ is a theory whereby
Contamination appears from nowhere
Fermentation is explained
Contamination comes from microbes in the air
Contamination comes from milkmaids
Edward Jenner's work involved
Cows and smallpox
Consumption and tuberculosis
Cholera and the pox
Cattle and anthrax
The founding concept of modern microbiology is
Spontaneous generations
The Germ Theory
Chemotherapy
Vaccination
Employers should undertake risk assessments in order to
Ensure employees remain compliant
Minimise the likelihood of harm
Satisfy the HSE
Optimise probability of infection
Centres whose role is to preserve and distribute standard reference strains of microbes are referred to as
Pure culture collections
Type culture collections
Source culture collections
Work culture collections
The surface of an agar plate used to grow and streak bacterial culture should be
Slightly over dried
Slightly wet
Dessicated
Molton
Which of the folowing would require an electron microscope to view it
A virus
A fungus
A yeast
A protozoan
Peptidoglycan is a complex component of which part of a bacterial cell
Capsule
Nucleosome
Cell wall
Pilus
A capsomere consits of
Complex, repeated saccharide units
Simple, repeated saccharide units
Complex, repeated protein units
Simple, repeated protein units
The Gram stain reflects the structure of which bacterial cell component
Capsule
Outer membrane
Capsomere
Cell wall
An example of an aerobic Gram negative rod would be
Bacteroides fragilis
Neissieria gonnorrhoea
Escherichia coli
Bacillus sp.
The fungi imperfecti
Only reproduce asexually
Produce ascospores for reproduction
Can eject airborne spores long distance
Do not reproduce
Sterilisation can be swiftly obtained by passing a bottle neck through which part of Bunsen burner flame
Just above the outer cone
Center of inner cone
Just outside cone
Just above inner cone
Staphylococcus aureus can be distinguished from Staphylococcus epidermidis by using
Gram stain
Luminescence
Coagulase test
Catalase test
The IMViC test is used to identify the presence of coliforms specifically indicative of
PH
O- antigens
Faecal contamination
Basidospores
The substance/ agent triggering an immune response is known as the
Antiseptic
Antibody
Antigen
Antiserum
Resolution is about
Sorting out probelms between two objects
Distinguishing clearly between two objects
How far two objects are from each other
Determining size of two objects
The two forms of electron microscopy are
Transition and scanning
Resolution and contrasting
Transmission and screening
Transmission and scanning
An anaerobe grows only in
Absence of oxygen
Presence of oxygen
Partial presence of oxygen
Presence of nitrogen
The main disadvantage of liquid culture media is
Looks turbing when microbes grow
Does not change colour with pH
Easily spilled
Cannot tell if culture is pure or mixed
Viruses can only be cultured
In chemostat
In other living cells
Stuck to surface of tissue culture 'flat'
On artificial media
Which of the following doesnt have broad spectrum of activity
Aldehydes
Halogens
Phenolics
Quarternary ammonium compounds
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