Portage Microbiology BIOD171 FINAL EXAM with correct
answers
Nucleus - ** VERIFIED ANSWERS **✔✔contains genomic content in eukaryotic cells
Endoplasmic reticulum - ** VERIFIED ANSWERS **✔✔series of membrane enclosed sacs and
interconnected tubes
Lysosomes - ** VERIFIED ANSWERS **✔✔contain hydrolytic enzymes for digestion
Chloroplast - ** VERIFIED ANSWERS **✔✔Site of photosynthesis
Briefly explain how a Scanning Electron Microscope (SEM) forms an image of a microscopic
specimen. - ** VERIFIED ANSWERS **✔✔Answer: An image is formed from the interactions of
electrons as they reflect off (not through) the surface of the specimen. Samples are coated in either
gold or palladium to enhance electron reflections. The reflection is seen in 3-D rendering.
Legionnaires - ** VERIFIED ANSWERS **✔✔legionella
Wound botulism - ** VERIFIED ANSWERS **✔✔Clostridium botulinum
Impetigo - ** VERIFIED ANSWERS **✔✔staph auerus
Septicemic plague - ** VERIFIED ANSWERS **✔✔yersina pestis
Yeast - ** VERIFIED ANSWERS **✔✔Eukaryote
Mycobacterium - ** VERIFIED ANSWERS **✔✔Prokaryote
, Algae - ** VERIFIED ANSWERS **✔✔Eukaryote
flu virus - ** VERIFIED ANSWERS **✔✔neither eukaryote or prokaryote
Phototroph - ** VERIFIED ANSWERS **✔✔utilize photons to generate ATP from ADP
lithotroph - ** VERIFIED ANSWERS **✔✔remove electrons from inorganic molecules
autotroph - ** VERIFIED ANSWERS **✔✔obtain their source of carbon from inorganic molecules
chemotroph - ** VERIFIED ANSWERS **✔✔acquire energy from preformed chemicals in the
environment
A researcher is looking to solidify an agent for growth media. What polysaccharide substance would
he or she use? - ** VERIFIED ANSWERS **✔✔agar
Place the following viral life cycle steps in order beginning with viral attachment (3points) and
provide a description of "UNCOATING" (1 point). - ** VERIFIED ANSWERS **✔✔1-Attachment:
2-Entry:
3- Uncoating: the viral capsid disassembles
4-Replication:
5-Release:
6-New infection:
The action of alcohol during Gram staining is___________. - ** VERIFIED ANSWERS
**✔✔Decolorizes the cell
Left untreated, three percent of cases of Streptococcal pharyngitis will progress to which of the
following? - ** VERIFIED ANSWERS **✔✔Rheumatic fever
answers
Nucleus - ** VERIFIED ANSWERS **✔✔contains genomic content in eukaryotic cells
Endoplasmic reticulum - ** VERIFIED ANSWERS **✔✔series of membrane enclosed sacs and
interconnected tubes
Lysosomes - ** VERIFIED ANSWERS **✔✔contain hydrolytic enzymes for digestion
Chloroplast - ** VERIFIED ANSWERS **✔✔Site of photosynthesis
Briefly explain how a Scanning Electron Microscope (SEM) forms an image of a microscopic
specimen. - ** VERIFIED ANSWERS **✔✔Answer: An image is formed from the interactions of
electrons as they reflect off (not through) the surface of the specimen. Samples are coated in either
gold or palladium to enhance electron reflections. The reflection is seen in 3-D rendering.
Legionnaires - ** VERIFIED ANSWERS **✔✔legionella
Wound botulism - ** VERIFIED ANSWERS **✔✔Clostridium botulinum
Impetigo - ** VERIFIED ANSWERS **✔✔staph auerus
Septicemic plague - ** VERIFIED ANSWERS **✔✔yersina pestis
Yeast - ** VERIFIED ANSWERS **✔✔Eukaryote
Mycobacterium - ** VERIFIED ANSWERS **✔✔Prokaryote
, Algae - ** VERIFIED ANSWERS **✔✔Eukaryote
flu virus - ** VERIFIED ANSWERS **✔✔neither eukaryote or prokaryote
Phototroph - ** VERIFIED ANSWERS **✔✔utilize photons to generate ATP from ADP
lithotroph - ** VERIFIED ANSWERS **✔✔remove electrons from inorganic molecules
autotroph - ** VERIFIED ANSWERS **✔✔obtain their source of carbon from inorganic molecules
chemotroph - ** VERIFIED ANSWERS **✔✔acquire energy from preformed chemicals in the
environment
A researcher is looking to solidify an agent for growth media. What polysaccharide substance would
he or she use? - ** VERIFIED ANSWERS **✔✔agar
Place the following viral life cycle steps in order beginning with viral attachment (3points) and
provide a description of "UNCOATING" (1 point). - ** VERIFIED ANSWERS **✔✔1-Attachment:
2-Entry:
3- Uncoating: the viral capsid disassembles
4-Replication:
5-Release:
6-New infection:
The action of alcohol during Gram staining is___________. - ** VERIFIED ANSWERS
**✔✔Decolorizes the cell
Left untreated, three percent of cases of Streptococcal pharyngitis will progress to which of the
following? - ** VERIFIED ANSWERS **✔✔Rheumatic fever
