BIOL 235 Exam 1 Questions and
Answers 100% Pass
what is a microbe? - ✔✔very small organism (<1mm); usually not visible
with unaided eye
prokaryotes and eukaryotes are _____ whereas viruses are ____ -
✔✔cellular; acellular
prokaryotes consist of ____ and _____ - ✔✔bacteria and archaea
eukaryotes consist of ___, _____, _____, _____ - ✔✔fungi, algae, protozoa,
helminths
bacteria usually range between ____ um and ____mm in size with avg of
_____um - ✔✔0.2microm and 1mm; 1-4microm
bacteria cell wall is made of - ✔✔peptidoglycan
bacteria are unicellular/multicellular - ✔✔unicellular
1
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,archaea usually range between ____um and ____mm in size with an avg of
___um - ✔✔0.2microm and 1mm; 1-4microm
archaea have ____, not ____ - ✔✔cell wall; peptidoglycan
archaea often live in - ✔✔extreme environments
3 major groups of archaea consist of - ✔✔methanogens, halophiles,
thermophiles
fungi consist of - ✔✔yeasts and molds
fungi are usually between ____um and ____mm in size with an avg of
___um - ✔✔1microm and 1mm; avg 10-40microm (10x prokaryotes)
fungi have a tough cell wall made of ____ - ✔✔chitin
fungi are motile/non-motile - ✔✔non-motile
protozoa are ____cellular eukaryotes - ✔✔unicellular
protozoa are usually between ___um and ___um in size - ✔✔30microm and
100microm
2
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,protozoa dont have a ______ but rather a protein cover made of ____ -
✔✔cell wall; pellicle
protozoa are motile/non-motile - ✔✔motile (pseudopods, cilia, flagella)
protozoa absorb organic molecules in a process called - ✔✔phagocytosis
algae are ____celluilar eukaryotes - ✔✔unicellular
algae are usually ___um and ____um in size - ✔✔30microm and
100microm
algae may be inclosed by ____ - ✔✔cell walls/cellulose
a ___ is required for viruses (ie animal, plant, bacteria, archaea) - ✔✔host
viruses have a protein coat made of - ✔✔capsid
viruses are usually between ___nm and ____nm - ✔✔20-250nm (0.02-
0.25microm) very small!
microbes in our lives can be ____ (disease causing) or _____ (beneficial) -
✔✔pathogenic, mutualistic
______ is the process of detoxification - ✔✔bioremediation
3
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, when humans manipulate the genes of microorganisms it is called -
✔✔genetic engineering
prokaryotes do not have a ____ but eukaryotes do - ✔✔nucleus
_____ have complex organelles but ____ do not - ✔✔eukaryotes;
prokaryotes
the DNA in prokaryotes is ____ but in eukaryotes it is _____ - ✔✔free
floating; encased
viruses lack - ✔✔cell structure
the correct way to name is - ✔✔uppercase genus, lowercase species (in
italics); can shorten second time written
the correction classification goes : domain, etc. - ✔✔domain, kingdom,
phylum/division, class, order, family, genus, species
who was the first person to discover a microorganism - ✔✔Anthony Van
Leeuwenhoek (1673); made microscopes to look at cloth
the idea of immediate creation is termed - ✔✔spontaneous generation
4
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Answers 100% Pass
what is a microbe? - ✔✔very small organism (<1mm); usually not visible
with unaided eye
prokaryotes and eukaryotes are _____ whereas viruses are ____ -
✔✔cellular; acellular
prokaryotes consist of ____ and _____ - ✔✔bacteria and archaea
eukaryotes consist of ___, _____, _____, _____ - ✔✔fungi, algae, protozoa,
helminths
bacteria usually range between ____ um and ____mm in size with avg of
_____um - ✔✔0.2microm and 1mm; 1-4microm
bacteria cell wall is made of - ✔✔peptidoglycan
bacteria are unicellular/multicellular - ✔✔unicellular
1
100% Pass Guarantee Katelyn Whitman, All Rights
,archaea usually range between ____um and ____mm in size with an avg of
___um - ✔✔0.2microm and 1mm; 1-4microm
archaea have ____, not ____ - ✔✔cell wall; peptidoglycan
archaea often live in - ✔✔extreme environments
3 major groups of archaea consist of - ✔✔methanogens, halophiles,
thermophiles
fungi consist of - ✔✔yeasts and molds
fungi are usually between ____um and ____mm in size with an avg of
___um - ✔✔1microm and 1mm; avg 10-40microm (10x prokaryotes)
fungi have a tough cell wall made of ____ - ✔✔chitin
fungi are motile/non-motile - ✔✔non-motile
protozoa are ____cellular eukaryotes - ✔✔unicellular
protozoa are usually between ___um and ___um in size - ✔✔30microm and
100microm
2
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,protozoa dont have a ______ but rather a protein cover made of ____ -
✔✔cell wall; pellicle
protozoa are motile/non-motile - ✔✔motile (pseudopods, cilia, flagella)
protozoa absorb organic molecules in a process called - ✔✔phagocytosis
algae are ____celluilar eukaryotes - ✔✔unicellular
algae are usually ___um and ____um in size - ✔✔30microm and
100microm
algae may be inclosed by ____ - ✔✔cell walls/cellulose
a ___ is required for viruses (ie animal, plant, bacteria, archaea) - ✔✔host
viruses have a protein coat made of - ✔✔capsid
viruses are usually between ___nm and ____nm - ✔✔20-250nm (0.02-
0.25microm) very small!
microbes in our lives can be ____ (disease causing) or _____ (beneficial) -
✔✔pathogenic, mutualistic
______ is the process of detoxification - ✔✔bioremediation
3
100% Pass Guarantee Katelyn Whitman, All Rights
, when humans manipulate the genes of microorganisms it is called -
✔✔genetic engineering
prokaryotes do not have a ____ but eukaryotes do - ✔✔nucleus
_____ have complex organelles but ____ do not - ✔✔eukaryotes;
prokaryotes
the DNA in prokaryotes is ____ but in eukaryotes it is _____ - ✔✔free
floating; encased
viruses lack - ✔✔cell structure
the correct way to name is - ✔✔uppercase genus, lowercase species (in
italics); can shorten second time written
the correction classification goes : domain, etc. - ✔✔domain, kingdom,
phylum/division, class, order, family, genus, species
who was the first person to discover a microorganism - ✔✔Anthony Van
Leeuwenhoek (1673); made microscopes to look at cloth
the idea of immediate creation is termed - ✔✔spontaneous generation
4
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