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Microbiology WGU OA TEST FINAL EXAM AND PRACTICE
EXAM 2026/2027 BANK 2 VERSIONS QUESTIONS WITH
DETAILED VERIFIED ANSWERS / EXAM QUESTIONS WILL
COME FROM HERE (100% CORRECT ANSWERS/ A+
GRADED
Prokaryotic Cells - ANSWERS--Lack nucleus membrane, single-celled,
lack membrane-bound organelles.
Eukaryotic Cells - ANSWERS--Contain nucleus membrane, genetic
material in nucleus, multicellular, membrane-bound organelles.
Ribosomes in Cells - ANSWERS--Prokaryotic: free 80s, Eukaryotic:
attached to Rough ER 70s.
Endospores - ANSWERS--Protect bacterial genome, survive harsh
conditions, form during sporulation.
Chemotaxis - ANSWERS--Movement with chemical gradient.
Phototaxis - ANSWERS--Movement toward/away from light.
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Bacterial Flagella - ANSWERS--Promote movement in bacteria.
Fimbriae - ANSWERS--Protein structures for cell attachment.
Pili - ANSWERS--Similar to fimbriae, aid in attachment.
Vegetative Cells vs. Endospores - ANSWERS--Typical cell state vs.
dormant protective state.
Sporulation Process - ANSWERS--Cells form endospores in hostile
environments.
Gram-Negative Bacteria - ANSWERS--Thin peptidoglycan layer,
lipopolysaccharide in outer membrane.
Capsid in Viruses - ANSWERS--Protein coat with genetic material.
Naked vs. Enveloped Virus - ANSWERS--No envelope vs. phospholipid
envelope.
Hyphae in Fungi - ANSWERS--Filaments forming fungal body.
Mycelium - ANSWERS--Network of hyphae in fungi.
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Dimorphic Fungus - ANSWERS--Changes appearance during life stages.
Ascomycota - ANSWERS--Fungal species with ascospores.
Basidiomycota - ANSWERS--Fungi producing basidiospores.
Microsporidia - ANSWERS--Lack mitochondria, spores with polar tube.
Zygomycota - ANSWERS--Saprophytic fungi with coenocytic hyphae.
Protozoans - ANSWERS--Wide habitat range, free-living, parasitic,
symbiotic.
Schizogony in Protozoans - ANSWERS--Nucleus divides multiple times,
forming merozoites.
Parasitic Helminths - ANSWERS--Nematoda (roundworms) and
Platyhelminthes (flatworms).
Monoecious vs. Dioecious - ANSWERS--Both sexes vs. separate sexes
for reproduction.
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Nematoda Characteristics - ANSWERS--Roundworms with distinct
features.
Monoecious - ANSWERS--Organisms with both male and female
reproductive organs.
Dioecious - ANSWERS--Organisms requiring two different individuals for
reproduction.
Nematoda - ANSWERS--Roundworms with 15,000 species,
unsegmented, found in feces.
Flukes - ANSWERS--Non-segmented Platyhelminthes with oral sucker
for attachment.
Tapeworms - ANSWERS--Segmented Platyhelminthes living in
intestines.
Homolactic fermentation - ANSWERS--Produces only lactic acid,
important in food fermentation.
Heterolactic fermentation - ANSWERS--Produces ethanol, acetic acid,
CO2, used in souring vegetables.
Microbiology WGU OA TEST FINAL EXAM AND PRACTICE
EXAM 2026/2027 BANK 2 VERSIONS QUESTIONS WITH
DETAILED VERIFIED ANSWERS / EXAM QUESTIONS WILL
COME FROM HERE (100% CORRECT ANSWERS/ A+
GRADED
Prokaryotic Cells - ANSWERS--Lack nucleus membrane, single-celled,
lack membrane-bound organelles.
Eukaryotic Cells - ANSWERS--Contain nucleus membrane, genetic
material in nucleus, multicellular, membrane-bound organelles.
Ribosomes in Cells - ANSWERS--Prokaryotic: free 80s, Eukaryotic:
attached to Rough ER 70s.
Endospores - ANSWERS--Protect bacterial genome, survive harsh
conditions, form during sporulation.
Chemotaxis - ANSWERS--Movement with chemical gradient.
Phototaxis - ANSWERS--Movement toward/away from light.
,2|Page
Bacterial Flagella - ANSWERS--Promote movement in bacteria.
Fimbriae - ANSWERS--Protein structures for cell attachment.
Pili - ANSWERS--Similar to fimbriae, aid in attachment.
Vegetative Cells vs. Endospores - ANSWERS--Typical cell state vs.
dormant protective state.
Sporulation Process - ANSWERS--Cells form endospores in hostile
environments.
Gram-Negative Bacteria - ANSWERS--Thin peptidoglycan layer,
lipopolysaccharide in outer membrane.
Capsid in Viruses - ANSWERS--Protein coat with genetic material.
Naked vs. Enveloped Virus - ANSWERS--No envelope vs. phospholipid
envelope.
Hyphae in Fungi - ANSWERS--Filaments forming fungal body.
Mycelium - ANSWERS--Network of hyphae in fungi.
,3|Page
Dimorphic Fungus - ANSWERS--Changes appearance during life stages.
Ascomycota - ANSWERS--Fungal species with ascospores.
Basidiomycota - ANSWERS--Fungi producing basidiospores.
Microsporidia - ANSWERS--Lack mitochondria, spores with polar tube.
Zygomycota - ANSWERS--Saprophytic fungi with coenocytic hyphae.
Protozoans - ANSWERS--Wide habitat range, free-living, parasitic,
symbiotic.
Schizogony in Protozoans - ANSWERS--Nucleus divides multiple times,
forming merozoites.
Parasitic Helminths - ANSWERS--Nematoda (roundworms) and
Platyhelminthes (flatworms).
Monoecious vs. Dioecious - ANSWERS--Both sexes vs. separate sexes
for reproduction.
, 4|Page
Nematoda Characteristics - ANSWERS--Roundworms with distinct
features.
Monoecious - ANSWERS--Organisms with both male and female
reproductive organs.
Dioecious - ANSWERS--Organisms requiring two different individuals for
reproduction.
Nematoda - ANSWERS--Roundworms with 15,000 species,
unsegmented, found in feces.
Flukes - ANSWERS--Non-segmented Platyhelminthes with oral sucker
for attachment.
Tapeworms - ANSWERS--Segmented Platyhelminthes living in
intestines.
Homolactic fermentation - ANSWERS--Produces only lactic acid,
important in food fermentation.
Heterolactic fermentation - ANSWERS--Produces ethanol, acetic acid,
CO2, used in souring vegetables.
