MICROB 3200 FINAL EXAM STUDY
GUIDE 2026 COMPLETE QUESTIONS
WITH CORRECT DETAILED ANSWERS
|| 100% GUARANTEED PASS
<LATEST VERSION>
1. three domains of life - ANSWER ✔ archaea, bacteria, eukarya
2. how do you determine domain of life - ANSWER ✔ compare the ribosomal
RNA sequences
3. archaea - ANSWER ✔ prokaryotic
closer to eukaryotes than bacteria
extremophiles
do NOT cause disease in humans
4. bacteria - ANSWER ✔ prokaryotic
typically 0.2 - 20 um
may grow as single cells, filaments, communities
5. protozoa - ANSWER ✔ eukaryotic
motile, single-celled organisms
, may be free-living or parasitic (ex: malaria)
6. algae - ANSWER ✔ eukaryotic
contain chloroplasts and conduct photosynthesis
base of the food web
*no pathogenic role in humans
7. fungi - ANSWER ✔ eukaryotic
nonmotile
grow as single cells or as filaments
can cause disease
8. viruses - ANSWER ✔ noncellular (chemical entities)
genetic material can cause disease
also used as biotechnology tools
not alive
9. eukarya - ANSWER ✔ eukaryote
10.relative size of bacterial pathogens - ANSWER ✔ range in size from 0.2 - 2
microns in diameter
11.cocci - ANSWER ✔ spherical bacteria
12.bacilli - ANSWER ✔ Rod shaped bacteria
,13.spirochete - ANSWER ✔ spiral shaped bacteria (usually motile)
14.coccobacillus - ANSWER ✔ short rod shaped bacteria
15.vibrio - ANSWER ✔ comma shaped bacteria
16.streptococcal species - ANSWER ✔ occur in chains
17.Strep pneumoniae - ANSWER ✔ occur in pairs; diplococci
18.Streptococci gram stain, morphology, catalase test - ANSWER ✔ gram +
cocci
arranged in chains/diplococci
catalase negative
19.Differentiate between strep spp - ANSWER ✔ s. pyogenes: B-hemolysis,
bacitracin sensitive
20.s. agalactiae: narrow B-hemolysis, bacitracin resistant
21.s. pneumoniae: a-hemolysis, optochin/bile resistant
, 22.Staph gram stain, morphology, catalase test - ANSWER ✔ gram positve
cocci in clusters
catalase +
23.Differentiate staph spp - ANSWER ✔ s. aureus: B-hemolytic, yellow on
MSA, halo, coag +
24.s. epidirmidis/s.saprophyticus: no hemolysis, pink on MSA, no halo, coag -
25.Describe mycobacteria - ANSWER ✔ acid fast staining, small bacilli, slow
growing
26.What is a granuloma? - ANSWER ✔ aggregates of immune cells
surrounding foci of infection
27.What is latent TB? - ANSWER ✔ patients with TB without symptoms, who
are not infectious, and who cannot spread TB infection to others
28.What is primary TB? - ANSWER ✔ patients with TB who is highly
infectious (bacteria is easily spread from an infected person to someone else)
29.What is the Ranke complex? - ANSWER ✔ pathognomonic macroscopial
lesion
GUIDE 2026 COMPLETE QUESTIONS
WITH CORRECT DETAILED ANSWERS
|| 100% GUARANTEED PASS
<LATEST VERSION>
1. three domains of life - ANSWER ✔ archaea, bacteria, eukarya
2. how do you determine domain of life - ANSWER ✔ compare the ribosomal
RNA sequences
3. archaea - ANSWER ✔ prokaryotic
closer to eukaryotes than bacteria
extremophiles
do NOT cause disease in humans
4. bacteria - ANSWER ✔ prokaryotic
typically 0.2 - 20 um
may grow as single cells, filaments, communities
5. protozoa - ANSWER ✔ eukaryotic
motile, single-celled organisms
, may be free-living or parasitic (ex: malaria)
6. algae - ANSWER ✔ eukaryotic
contain chloroplasts and conduct photosynthesis
base of the food web
*no pathogenic role in humans
7. fungi - ANSWER ✔ eukaryotic
nonmotile
grow as single cells or as filaments
can cause disease
8. viruses - ANSWER ✔ noncellular (chemical entities)
genetic material can cause disease
also used as biotechnology tools
not alive
9. eukarya - ANSWER ✔ eukaryote
10.relative size of bacterial pathogens - ANSWER ✔ range in size from 0.2 - 2
microns in diameter
11.cocci - ANSWER ✔ spherical bacteria
12.bacilli - ANSWER ✔ Rod shaped bacteria
,13.spirochete - ANSWER ✔ spiral shaped bacteria (usually motile)
14.coccobacillus - ANSWER ✔ short rod shaped bacteria
15.vibrio - ANSWER ✔ comma shaped bacteria
16.streptococcal species - ANSWER ✔ occur in chains
17.Strep pneumoniae - ANSWER ✔ occur in pairs; diplococci
18.Streptococci gram stain, morphology, catalase test - ANSWER ✔ gram +
cocci
arranged in chains/diplococci
catalase negative
19.Differentiate between strep spp - ANSWER ✔ s. pyogenes: B-hemolysis,
bacitracin sensitive
20.s. agalactiae: narrow B-hemolysis, bacitracin resistant
21.s. pneumoniae: a-hemolysis, optochin/bile resistant
, 22.Staph gram stain, morphology, catalase test - ANSWER ✔ gram positve
cocci in clusters
catalase +
23.Differentiate staph spp - ANSWER ✔ s. aureus: B-hemolytic, yellow on
MSA, halo, coag +
24.s. epidirmidis/s.saprophyticus: no hemolysis, pink on MSA, no halo, coag -
25.Describe mycobacteria - ANSWER ✔ acid fast staining, small bacilli, slow
growing
26.What is a granuloma? - ANSWER ✔ aggregates of immune cells
surrounding foci of infection
27.What is latent TB? - ANSWER ✔ patients with TB without symptoms, who
are not infectious, and who cannot spread TB infection to others
28.What is primary TB? - ANSWER ✔ patients with TB who is highly
infectious (bacteria is easily spread from an infected person to someone else)
29.What is the Ranke complex? - ANSWER ✔ pathognomonic macroscopial
lesion
