MCB2010 Exam 1 IRSC AND PRACTICE Exam
2025-2026 With Complete Questions and
Correct Answers | Graded A+ | Verified
Answers And Brand New
classifications of microbes - answer--bacteria, archaea, fungi, protozoa,
algae, and small multicellular animals
bacteria & archaea - answer--prokaryotes, unicellular & lack nucleus,
much smaller than eukaryotes, found in moist environments & isolated
extreme conditions, asexual repro, bacteria has peptidoglycan cell wall
while archaea does not
2 types of prokaryotes - answer--bacteria and archaea
fungi - answer--eukaryotic (membrane bound nucleus), obtain food
from other organisms, possess cell walls, and include: molds
(multicellular; grow as long filaments; repro by sexual and asexual
spores) & yeasts (unicellular; repro asexually by budding and some
produce sexual spores)
,molds - answer--fungi; multicellular; grow as long filaments; repro by
asexual and sexual spores
yeasts - answer--fungi; unicellular; repro asexually by budding and some
produce sexual spores
protozoa - answer--single-celled eukaryotes that lack a cell wall and are
similar to animals in their nutritional needs and structure, mostly
asexual repro but some sexual, locomotion by pseudopods, cilia, and
flagella
pseudopods - answer--false feet, means of locomotion, flow in direction
of travel
cila - answer--numerous short protrusions that propel organism
flagella - answer--extension of cell that are fewer, longer, and more
whiplike than cilia
algae - answer--unicellular or multicellular, photosynthetic, simple repro
structures, categorized on basis of pigmentation and composition of cell
wall
, other organisms of importance - answer--parasites and viruses
three processes scientists thought living things arose from - answer--
asexual, sexual, and non living matter
who proposed that living things could arise from non living matter -
answer--aristotle
redi's experiments - answer--allowed people to doubt aristotles theory
because when decaying meat kept from flies no maggots developed
needham's experiments - answer--scientists agreed large animals
couldnt rise from spontaneity, but believed microbes could; example
with gravy and infusion of plant material reinforced this idea
spallanzi's experiments - answer--contradicted needham, all living
things arise from other living things, needham failed to heat vials
sufficiently to kill all microbes
pasteur's experiments - answer--performed with swan neck flasks,
when flasks remained upright no microbial growth appeared, but when
it was tilted dust from bend in the neck would seep into flask and made
infusion cloudy with microbes within a day
2025-2026 With Complete Questions and
Correct Answers | Graded A+ | Verified
Answers And Brand New
classifications of microbes - answer--bacteria, archaea, fungi, protozoa,
algae, and small multicellular animals
bacteria & archaea - answer--prokaryotes, unicellular & lack nucleus,
much smaller than eukaryotes, found in moist environments & isolated
extreme conditions, asexual repro, bacteria has peptidoglycan cell wall
while archaea does not
2 types of prokaryotes - answer--bacteria and archaea
fungi - answer--eukaryotic (membrane bound nucleus), obtain food
from other organisms, possess cell walls, and include: molds
(multicellular; grow as long filaments; repro by sexual and asexual
spores) & yeasts (unicellular; repro asexually by budding and some
produce sexual spores)
,molds - answer--fungi; multicellular; grow as long filaments; repro by
asexual and sexual spores
yeasts - answer--fungi; unicellular; repro asexually by budding and some
produce sexual spores
protozoa - answer--single-celled eukaryotes that lack a cell wall and are
similar to animals in their nutritional needs and structure, mostly
asexual repro but some sexual, locomotion by pseudopods, cilia, and
flagella
pseudopods - answer--false feet, means of locomotion, flow in direction
of travel
cila - answer--numerous short protrusions that propel organism
flagella - answer--extension of cell that are fewer, longer, and more
whiplike than cilia
algae - answer--unicellular or multicellular, photosynthetic, simple repro
structures, categorized on basis of pigmentation and composition of cell
wall
, other organisms of importance - answer--parasites and viruses
three processes scientists thought living things arose from - answer--
asexual, sexual, and non living matter
who proposed that living things could arise from non living matter -
answer--aristotle
redi's experiments - answer--allowed people to doubt aristotles theory
because when decaying meat kept from flies no maggots developed
needham's experiments - answer--scientists agreed large animals
couldnt rise from spontaneity, but believed microbes could; example
with gravy and infusion of plant material reinforced this idea
spallanzi's experiments - answer--contradicted needham, all living
things arise from other living things, needham failed to heat vials
sufficiently to kill all microbes
pasteur's experiments - answer--performed with swan neck flasks,
when flasks remained upright no microbial growth appeared, but when
it was tilted dust from bend in the neck would seep into flask and made
infusion cloudy with microbes within a day
