Latest Exam Fully Solved 2026
Edition.
organisms that are too small to be seen with the unaided eye - Answer microorganisms
the study of microscopic organisms, such as bacteria, viruses, archaea, fungi, and protozoa. -
Answer microbiology
true or false: all microbes are pathogens - Answer false (few are pathogens, most are
beneficial)
proposed by carl woese in the 1970s, based ribosome RNA sequence - Answer three domains
of life
what are the three domains of life - Answer Bacteria, Archaea, Eukarya
these are single celled organisms, with peptidoglycan cell walls, some motility, obtain nutrition
from organic or inorganic chemicals, or photosynthesis, and some can be pathogenetic - Answer
bacteria
this are single celled organisms with cell walls, some motility, obtain nutrition from organic or
inorganic chemicals, they are not known pathogens, and many of them are considered
extremophiles - Answer archaea
this is a diverse group of animal like, single celled eukaryotes that absorb or ingest organic
compounds for nutrition. They do not have cell walls, and are often motile via flagella, cilia, or
pseudopods. Some are parasitic - Answer protozoa
this is a diverse grouping of photosynthetic eukaryotes. They have cells walls, some are motile
(often flagella), are found in freshwater, saltwater, and soil, can be unicellular and multicellular,
and are rarely pathogens - Answer algae
this class of organisms have cell walls, uptake organic compounds for food, can be unicellular
(yeast) or multicellular (mold or mushrooms), and some can be pathogens - Answer fungi
, these consist of DNA or RNA genomes surrounded by a protein coat (which may be enclosed in
a lipid envelope) and are inert outside of a living host - Answer viruses
infectious proteins - Answer prions
Infectious RNAs that primarily infect plants are called - Answer viroids
the first person to observe cells, named them cells - Answer robert hooke
father of microbiology; observed microbes and other cells, wrote about findings in royal society
of london - Answer anton von leeuwenhoek
the idea that life arises from nonliving matter; a "vital force" is necessary for life - Answer
spontaneous generation
the hypothesis that living cells arise only from preexisting living cells - Answer biogenesis
who designed the s-shaped flask experiment that effectively ended the spontaneous generation
debate - Answer louis pasteur
this person determined yeast are responsible for sugar fermentation, the fact that spoilage and
harmful bacteria can be killed by brief exposure to heat, gave some support for germ theory,
and investigated vaccination - Answer louis pasteur
this team discovered and worked with endospores - Answer tyndall and cohn
this person performed surgery under aseptic conditions using phenol. Proved that microbes
caused surgical wound infections - Answer lister
this person established experimental steps for directly linking a specific microbe to a specific
disease; pure cultures - Answer Koch
experimental criteria to demonstrate that a specific microbe causes a specific disease - Answer
koch's postulates
this person experimented by inoculating a person with a milder pathogen, coxpox and realized
that that person became protected from smallpox; unknown at the time, this protection was
called immunity - Answer edward jenner