Answer Options:
Watson & Crick
Robert Hooke
Antonie van Leeuwenhoek
Hans Christian Gram
Answer: Hans Christian Gram
Question: Deficiency of which mineral can cause hypothyroidism?
Answer Options:
Iron
Iodine
Calcium
Answer: Iodine
Question: Which of the following describes the structure of bacterial cell membranes?
Answer Options:
Fluid mosaic model
Phospholipid bilayer
Both Fluid mosaic model & Phospholipid bilayer
Both Glycocalyx & Phospholipid bilayer
Answer: Both Fluid mosaic model & Phospholipid bilayer
Question: What is the anticodon of a tRNA molecule that ‘carries’ methionine (MET)?
Answer Options:
AUG
UAC
GUA
CAU
Answer: CAU
Question: The type of microscopy in which the field is dark and the specimen is brightly lit, is known as __________-field microscopy.
Answer: Dark
Question: ________ medium designed to permit the growth of a particular organism while inhibiting the growth of others.
Answer Options:
Defined
Undefined
Selective
Differential
Answer: Selective
Question: An enzyme functions by:
Answer Options:
Creating the products of a chemical reaction.
Lowering the activation energy of a chemical reaction.
Causing a chemical reaction to occur.
Inducing gene expression.
Answer: Lowering the activation energy of a chemical reaction.
Question: If the growth in an agar deep appears throughout AND more concentrated on the surface of the deep, how would you describe the aerotolerance of the bacteria?
Answer Options:
Facultative anaerobe
Facultative aerobe
Obligate aerobe
Obligate anaerobe
Answer: Facultative anaerobe
Question: The type of microscopy in which the field is bright and the specimen appears opaque, is known as __________-field microscopy.
Answer: Bright
Question: The bacterial genus most responsible for (initial) plaque formation on teeth is:
Answer Options:
Staphylococcus
Streptococcus
Borrelia
Bifidobacterium
Helicobacter
Answer: Streptococcus
Question: If you are using the resolving power calculated in Q2, can you distinguish two cells on a slide that are 210 nm apart?
Answer Options:
Yes, they will be two distinct points.
No, they will blur into one
Answer: No, they will blur into one
Question: If you perform a Gram stain on a pure culture of bacteria and you observe purple, sausage-shaped cells at 1000X magnification, what terms would you use to describe the bacteria?
Answer Options:
Gram-positive cocci
Gram-negative rods
Gram-positive spiral
Gram-positive rods
Answer: Gram-positive rods
Question: Use the diagram below to answer this question: The entire diagram depicts the cell envelope from a typical ________ cell.
Answer Options:
Gram-positive bacteria
Archaea
Gram-negative bacteria
Eukaryotic
None of these are correct
Answer: Gram-negative bacteria
Question: The coliform-type bacteria are indicated by the blue colony color on mFC agar.
Answer Options:
True
False
Answer: True
Question: Which of the following diseases is NOT associated with dysbiosis in humans?
Answer Options:
Asthma
Colorectal cancer
Kidney stones
Psoriasis
All of the above are associated with dysbiosis
Answer: Kidney stones
Question: Resistant E. coli cells grow on TSA plus streptomycin media.
Answer Options:
True
False
Answer: True
Question: Viruses acquire envelopes during:
Answer Options:
replication
assembly
release
entry
Answer: release
Question: Which type of microscope can be used to observe viruses?
Answer Options:
Phase Contrast?
Dark Field
Bright Field
Scanning Electron Microscope (SEM)
Answer: Scanning Electron Microscope (SEM)
Question: True or False: A red blood cell is visible under a light microscope.
Answer Options:
True
False
Answer: True
Question: Normal skin flora helps prevent harmful organisms from colonizing the skin.
Answer Options:
True
False
Answer: True
Question: True or False: An Ebola virus is visible under an electron microscope.
Answer Options:
True
False
Answer: True
Question: Which of the following is evidence that supports the endosymbiotic theory?
Answer Options:
DNA structure in the mitochondria and chloroplasts
The mitochondria and chloroplasts do not contain ribosomes
The mitochondria and chloroplasts have cell walls that contain peptidoglycan
Mitochondria are phylogenetically related to alpha-proteobacteria
None of the answers are correct
Answer: DNA structure in the mitochondria and chloroplasts
Question: After incubation of an inoculated Phenol Red Fermentation Broth tube, the test organism was characterized a glucose fermenter since the broth changed from red to [blank].
Answer: yellow
Question: In bacterial cells, the electron transport system is located in the:
Answer Options:
Cytoplasm
Cell membrane
Mitochondria
Chloroplast
Ribosome
Answer: Cell membrane
Question: Military veterans experience a lot of violence and trauma during the war and later can have a psychological disorder related to those experiences. What the name of that disorder?
Answer Options:
Schizophrenia
Dementia
Posttraumatic Stress Disorder
Delirium
Answer: Posttraumatic Stress Disorder