PORTAGE MICROBIOLOGY EXAM 3
GRADED A PRACTICE TEST BANK 2026
TESTED QUESTIONS WITH ANSWERS
GRADED A+
⩥ A virus is considered a microorganism. True or False. Answer: False
⩥ What is the smallest biological unit of life?. Answer: A cell
⩥ What are the four main types of macromolecules?. Answer: proteins,
nucleic acids, lipids, carbohydrates
⩥ proteins are formed from various combinations of
________________. Answer: amino acids
⩥ Briefly explain how a Scanning Electron Microscope (SEM) forms an
image of subcellular organelles, substrates, and viral particles.. 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.
,⩥ How many amino acids are essential?. Answer: 20
⩥ Match each of the following diseases to the correct bacterial family.
Scalded Skin Syndrome
Bubonic PLague
Opthalmia Neonatorium
Legionnaires. Answer: Scalded Skin Syndrome - Staph Aureus
Bubonic Plague - Yersina Pestis
Opthalmia Neonatorium - Staphylococcus
Legionnaires - Legionella
⩥ Identify each of the following microorganisms as either a Prokaryote
or a
Eukaryote.
E.coli
Archaeons
Yeast
Amoeba. Answer: E.coli - Prokaryote
Archaeons - Prokaryote
Yeast - Eukaryote
Amoeba - Eukaryote
, ⩥ Match each of the following terms with the correct description.
Phototroph
Lithotroph
Autotroph
Chemotroph. Answer: Phototroph - Utilize photons of light to generate
ATP from ADP
Lithotroph - Remove electrons from inorganic molecules
Autotroph - Obtain their source of carbon from inorganic molecules
Chemotroph - Acquire energy from preformed chemicals found in the
environment
⩥ A researcher is looking to determine the source of contamination of a
patient that presented with symptoms of food poisoning. To best
determine between E. coli or Salmonella as the cause, what type of agar
will be used to isolate the growth of each?. Answer: Differential media
⩥ Place the following viral life cycle steps in order beginning with viral
attachment and provide a description of each.
Uncoating
Release
Replication
Attachment
Entry
GRADED A PRACTICE TEST BANK 2026
TESTED QUESTIONS WITH ANSWERS
GRADED A+
⩥ A virus is considered a microorganism. True or False. Answer: False
⩥ What is the smallest biological unit of life?. Answer: A cell
⩥ What are the four main types of macromolecules?. Answer: proteins,
nucleic acids, lipids, carbohydrates
⩥ proteins are formed from various combinations of
________________. Answer: amino acids
⩥ Briefly explain how a Scanning Electron Microscope (SEM) forms an
image of subcellular organelles, substrates, and viral particles.. 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.
,⩥ How many amino acids are essential?. Answer: 20
⩥ Match each of the following diseases to the correct bacterial family.
Scalded Skin Syndrome
Bubonic PLague
Opthalmia Neonatorium
Legionnaires. Answer: Scalded Skin Syndrome - Staph Aureus
Bubonic Plague - Yersina Pestis
Opthalmia Neonatorium - Staphylococcus
Legionnaires - Legionella
⩥ Identify each of the following microorganisms as either a Prokaryote
or a
Eukaryote.
E.coli
Archaeons
Yeast
Amoeba. Answer: E.coli - Prokaryote
Archaeons - Prokaryote
Yeast - Eukaryote
Amoeba - Eukaryote
, ⩥ Match each of the following terms with the correct description.
Phototroph
Lithotroph
Autotroph
Chemotroph. Answer: Phototroph - Utilize photons of light to generate
ATP from ADP
Lithotroph - Remove electrons from inorganic molecules
Autotroph - Obtain their source of carbon from inorganic molecules
Chemotroph - Acquire energy from preformed chemicals found in the
environment
⩥ A researcher is looking to determine the source of contamination of a
patient that presented with symptoms of food poisoning. To best
determine between E. coli or Salmonella as the cause, what type of agar
will be used to isolate the growth of each?. Answer: Differential media
⩥ Place the following viral life cycle steps in order beginning with viral
attachment and provide a description of each.
Uncoating
Release
Replication
Attachment
Entry
