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MicroBioFinal
Microbiology Final Exam
31 cards·by GynecOnco2024
microbiologycollegeprenursingpremedscience
Carbolfusin is used in which of the following
Acid Fast Stan
the size of the most microorganisms is measured in
micrometers
Why are blue filters used on the light source of the light microscopes
To increase resolution
A stain that is used primarily to identify Mycobacterium tuberculosis is
Acid Fast stain
What dye in the gram Stain do gram positive bacteria retain
Crystal Violet
Why is oxygen a beneficial molecule for obligate aerobes but a deadly one for obligate
anaerobes
Obligate Anaerobes usually lack protective enzymes such as catalase
Blood agar or tryptic soy agar is classified as what type of agar
Supportative
an agar that contains charcoal that is specifically made to grow pertussis would be
classified as what kind of agar
Enrichment
Direct methods for measuring the number of microbes in a sample
Viable plate counts, Membrane filtration, Pour plates
Which of the following best describes why gram negative bacteria stain red
The outer membrane is dissolved by the decolorizer
A patient suffering from TB could be diagnosed by the use of what stain
Acid Fast
What sticky layer allows bacteria to attach to the surfaces
Slime layer
Archael Cell Walls
Contains specialized polysaccharides but does not contain peptidoglycan
prokaryotic and eukaryotic ribosomes
Are different sizes thus can be effectively used as an antibacterial target
Antoni Van Leeuwenhoek is known as the father of
Protozoology and bateriology
Which of the following individuals pioneered the use of chemicals to reduce the incidence of
infections during surgery
Lister
Pasteur devbeloped a successful vaccine against which of the following diseases
Rabies
Which of the following lack cell walls
Protozoa
Which of the following are autotrophic
Cyanobacteria and Fungi
Which of the following is used in both acid fast and gram staining
Mordant
Which of the following would NOT be found in prokaryotic and eukaryotic cells
Mitochondria
NOT true about endospores
A means of reproduction
Basic dyes are more commonly used than acidic dyes because
They are positively charged
A cell that uses an organic carbon source and obtains energy from light would be called a
photoheterotroph
What is True about bacterial cell walls
Contain peptidoglycan
LPS
contains an endotoxin
Nutritionally, humans are classified as which of the following
Chemoheterotrophs
If a microbiology lab tech left the safranin out of the gram stain procedure what would be the
result
Gram positive cells would be purple and gram negative cells would be colorless
What is the purpose of the iodine in the gram stain
To act as a mordant and to form an insoluble complex with the crystal violet
Human Pathogens are classifed as
Mesophiles
Cells are rapidly growing and dividing during the ______ of growth
log phase