MICROBIOLOGY 241 - EXAM 1 QUESTIONS
WITH CORRECT ANSWERS 2025/2026
Define Microbiology: - CORRECT ANSWER -The study of living things too small to see with the
unaided eye.
List examples of organisms studied in microbiology - CORRECT ANSWER -Bacteria, viruses, fungi,
algae, protozoa, arthropods, and helminths.
Define Microorganisms: - CORRECT ANSWER -Living things too small to be seen with the
unaided eye.
Define Taxonomy: - CORRECT ANSWER -A discipline of biology that studies how living things are
grouped and named.
What is the difference between binomial nomenclature and classification? - CORRECT ANSWER -
Binomial nomenclature is used to assign two word a scientific name, classification is to group
based on some similarities.
list some differences between one species and domain. - CORRECT ANSWER -Domain is a large
group with a lot of diversity, whereas a species is a smaller group with less diversity
What is the relationship between species and strain - CORRECT ANSWER -species are individual
of same kind, strain is member of the same species with a few distinguishable characteristic.
List each taxon in the modern system of classification from the smallest to largest taxon. -
CORRECT ANSWER -Species, genus, family, order, class, phyla, kingdom, domain
, What pattern emerge in the Modern system of classification of living things? - CORRECT
ANSWER -Domain is large group and have more diversity (little similarity)
species is small group and have many similarity
Describe the 3 domains? - CORRECT ANSWER -Archaea - prokaryotes, no peptidglycan in the cell
wall, circular DNA
Bacteria - prokaryotes, cell wall is made of peptideglycan, cieculer DNA
Eukarya - eukaryotes, for those that have a cell wall, there is no peptideglycan, only liner DNA
List the characteristics of each kingdom of domain Eukarya - CORRECT ANSWER -Protista, Fungi,
Plants, Animals
List some example of organism in each kingdom of domain Eukarya - CORRECT ANSWER -
Protista - Protoza microscopic animal like organisms, unicellular, heterotrophs, mostly motile, no
cell wall
- Algae plant like organisms, unicellular and multicelluler, autotrophs, sessile, have cell wall
Fungi - unicelluler- yeast, multicelluler - mushrooms, mildow, mold,athlete's foot, fungus
heterotrophs, cell wall mostly made of chitin, sessile
Plants - multicellular, cell wall made of cellulose, sessile, autotrophs
Animals - multicellular, no cell wall, mostly motile, heterotrophs
Define each taxon- domain, kingdom, phylum, class, order, family, genus, and species. -
CORRECT ANSWER -Domain-A group of similar Kingdoms,
Kingdom-A group of similar phylum,
Phylum-A group of similar classes,
Class-A group of similar orders,
Order-A group of similar families,
Family-A group of similar geniuses (general),
WITH CORRECT ANSWERS 2025/2026
Define Microbiology: - CORRECT ANSWER -The study of living things too small to see with the
unaided eye.
List examples of organisms studied in microbiology - CORRECT ANSWER -Bacteria, viruses, fungi,
algae, protozoa, arthropods, and helminths.
Define Microorganisms: - CORRECT ANSWER -Living things too small to be seen with the
unaided eye.
Define Taxonomy: - CORRECT ANSWER -A discipline of biology that studies how living things are
grouped and named.
What is the difference between binomial nomenclature and classification? - CORRECT ANSWER -
Binomial nomenclature is used to assign two word a scientific name, classification is to group
based on some similarities.
list some differences between one species and domain. - CORRECT ANSWER -Domain is a large
group with a lot of diversity, whereas a species is a smaller group with less diversity
What is the relationship between species and strain - CORRECT ANSWER -species are individual
of same kind, strain is member of the same species with a few distinguishable characteristic.
List each taxon in the modern system of classification from the smallest to largest taxon. -
CORRECT ANSWER -Species, genus, family, order, class, phyla, kingdom, domain
, What pattern emerge in the Modern system of classification of living things? - CORRECT
ANSWER -Domain is large group and have more diversity (little similarity)
species is small group and have many similarity
Describe the 3 domains? - CORRECT ANSWER -Archaea - prokaryotes, no peptidglycan in the cell
wall, circular DNA
Bacteria - prokaryotes, cell wall is made of peptideglycan, cieculer DNA
Eukarya - eukaryotes, for those that have a cell wall, there is no peptideglycan, only liner DNA
List the characteristics of each kingdom of domain Eukarya - CORRECT ANSWER -Protista, Fungi,
Plants, Animals
List some example of organism in each kingdom of domain Eukarya - CORRECT ANSWER -
Protista - Protoza microscopic animal like organisms, unicellular, heterotrophs, mostly motile, no
cell wall
- Algae plant like organisms, unicellular and multicelluler, autotrophs, sessile, have cell wall
Fungi - unicelluler- yeast, multicelluler - mushrooms, mildow, mold,athlete's foot, fungus
heterotrophs, cell wall mostly made of chitin, sessile
Plants - multicellular, cell wall made of cellulose, sessile, autotrophs
Animals - multicellular, no cell wall, mostly motile, heterotrophs
Define each taxon- domain, kingdom, phylum, class, order, family, genus, and species. -
CORRECT ANSWER -Domain-A group of similar Kingdoms,
Kingdom-A group of similar phylum,
Phylum-A group of similar classes,
Class-A group of similar orders,
Order-A group of similar families,
Family-A group of similar geniuses (general),
