BIOD 171 FINAL EXAM NEWEST EXAM 2026-2027
COMPLETE 50 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+
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 eof agar will be used to isolate the growth of each?
Differential Media
Enriched Media
Selective Media
Selective and Differential Media - CORRECT ANSWER: Differential media.
Bacteria that have a curved rod morphology are referred to as ________________ - CORRECT
ANSWER: Vibrio
Briefly explain how a Scanning Electron Microscope (SEM) forms an image of sub cellular
organelles, substrates, and viral particles. - CORRECT ANSWER: An image is formed from the
interactions of electrons as they reflect off (not through) the surface of a specimen. Samples are
then coated in gold to enhance the reflections.
Describe the ONE main difference between lytic and temperate phages - CORRECT ANSWER:
Lytic phages replicate within the host bacteria until it ruptures, whereas temperate phages
primarily exist in a non-replicative state that does not kill the host cell.
Describe TWO differences between DNA and RNA - CORRECT ANSWER: -RNA contains the
sugar ribose rather than deoxyribose.
-RNA is always single-stranded, whereas DNA is double-stranded.
, Each of the following statements about glycolysis is true, EXCEPT: - CORRECT ANSWER:
The net gain is 4 ATP
Each of the following statements about measles, mumps and rubella is true, EXCEPT:
Infect the CNS (central nervous system), leading to temporary or permanent paralysis
Spread via airborne particles while coughing, sneezing, etc.
Caused by linear, single-stranded enveloped RNA virus
Immunity provided by inoculation with a vaccine - CORRECT ANSWER: Infect the CNS
(central nervous system) leading to temporary or permanent paralysis
Giemsa staining is used to detect each of the following. EXCEPT:
Neisseria Gonorrhea
Histoplasma
Chlamydia Trachomatis
Malaria - CORRECT ANSWER: Neisseria Gonorrhea
Identify each of the following microorganisms as either a Prokaryote or a Eukaryote.
E. coli
COMPLETE 50 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+
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 eof agar will be used to isolate the growth of each?
Differential Media
Enriched Media
Selective Media
Selective and Differential Media - CORRECT ANSWER: Differential media.
Bacteria that have a curved rod morphology are referred to as ________________ - CORRECT
ANSWER: Vibrio
Briefly explain how a Scanning Electron Microscope (SEM) forms an image of sub cellular
organelles, substrates, and viral particles. - CORRECT ANSWER: An image is formed from the
interactions of electrons as they reflect off (not through) the surface of a specimen. Samples are
then coated in gold to enhance the reflections.
Describe the ONE main difference between lytic and temperate phages - CORRECT ANSWER:
Lytic phages replicate within the host bacteria until it ruptures, whereas temperate phages
primarily exist in a non-replicative state that does not kill the host cell.
Describe TWO differences between DNA and RNA - CORRECT ANSWER: -RNA contains the
sugar ribose rather than deoxyribose.
-RNA is always single-stranded, whereas DNA is double-stranded.
, Each of the following statements about glycolysis is true, EXCEPT: - CORRECT ANSWER:
The net gain is 4 ATP
Each of the following statements about measles, mumps and rubella is true, EXCEPT:
Infect the CNS (central nervous system), leading to temporary or permanent paralysis
Spread via airborne particles while coughing, sneezing, etc.
Caused by linear, single-stranded enveloped RNA virus
Immunity provided by inoculation with a vaccine - CORRECT ANSWER: Infect the CNS
(central nervous system) leading to temporary or permanent paralysis
Giemsa staining is used to detect each of the following. EXCEPT:
Neisseria Gonorrhea
Histoplasma
Chlamydia Trachomatis
Malaria - CORRECT ANSWER: Neisseria Gonorrhea
Identify each of the following microorganisms as either a Prokaryote or a Eukaryote.
E. coli
