Biology 1002 Test 1 Latoya Paul LSU
Questions and Answers.
taxonomy - Answer -the branch that is concerned with naming and classifying organisms
-it was established by the Swedish naturalist carl von line
-two-part naming system, genus and species
genus - Answer (homo) number of very closely related species
species - Answer sapiens
how scientific name is written - Answer always italicized or underlined and the Genus is
capitalized
origin of species - Answer charles darwin published this book and it demonstrated that all
life is related by common ancestry
phylogeny - Answer evolutionary history
systematics - Answer
clades - Answer grouping species to show ancestry between them. can have smaller class
inside larger ones
linnaean classification system - Answer domain-kingdom-phylum-class-order-family-genus-
species
prokaryotes - Answer -bacteria, archaea, single celled
-first organisms on earth
-1.5 billion years or more
eukaryotes - Answer animals, plants, fungi, protists "junk drawer", and multicellular and
sometimes unicellular because of protists
how many new species are identified annually? - Answer 15,000; mostly in the tropics
, how many species have been named? and how many are estimated to exist? - Answer 1.6
million named; 8.7 million exist
biodiversity - Answer
three shapes of prokaryotes - Answer spherical, rod like, or corkscrew
differences between bacteria and archaea - Answer -bacteria have peptidoglycan in their cell
walls; archaea don't
-there are differences in the plasma membrane composition, ribosomes, and ran polymerases
between two domains
-differences in transcription and translation
classify prokaryotes - Answer -shape
-means of locomotion
-pigments
-nutrient requirements
-colony appearance
-gram staining characteristics
-nucleotide sequences
gram staining characteristics of prokaryotes - Answer gram + retains violet color and has a
thick peptidoglycan layer and has no outer membrane
gram - retains red color and has a thin peptidoglycan layer and has an outer membrane
prokaryotes may appear in these places - Answer -singly at the end of a cell
-in pairs at the end of each cell
-as a tuft at the end of the cell
-scattered over the entire cell
biofilm - Answer one or more species of prokaryote aggregate to a community typically
surrounded by sticky protective slime ( at first bacteria is held together by pili) (dental plaque)
endospores - Answer thickly wrapped particles of genetic material and a few enzymes and
they can withstand harsh conditions
where can we find prokaryotes? - Answer -near boiling environments
Questions and Answers.
taxonomy - Answer -the branch that is concerned with naming and classifying organisms
-it was established by the Swedish naturalist carl von line
-two-part naming system, genus and species
genus - Answer (homo) number of very closely related species
species - Answer sapiens
how scientific name is written - Answer always italicized or underlined and the Genus is
capitalized
origin of species - Answer charles darwin published this book and it demonstrated that all
life is related by common ancestry
phylogeny - Answer evolutionary history
systematics - Answer
clades - Answer grouping species to show ancestry between them. can have smaller class
inside larger ones
linnaean classification system - Answer domain-kingdom-phylum-class-order-family-genus-
species
prokaryotes - Answer -bacteria, archaea, single celled
-first organisms on earth
-1.5 billion years or more
eukaryotes - Answer animals, plants, fungi, protists "junk drawer", and multicellular and
sometimes unicellular because of protists
how many new species are identified annually? - Answer 15,000; mostly in the tropics
, how many species have been named? and how many are estimated to exist? - Answer 1.6
million named; 8.7 million exist
biodiversity - Answer
three shapes of prokaryotes - Answer spherical, rod like, or corkscrew
differences between bacteria and archaea - Answer -bacteria have peptidoglycan in their cell
walls; archaea don't
-there are differences in the plasma membrane composition, ribosomes, and ran polymerases
between two domains
-differences in transcription and translation
classify prokaryotes - Answer -shape
-means of locomotion
-pigments
-nutrient requirements
-colony appearance
-gram staining characteristics
-nucleotide sequences
gram staining characteristics of prokaryotes - Answer gram + retains violet color and has a
thick peptidoglycan layer and has no outer membrane
gram - retains red color and has a thin peptidoglycan layer and has an outer membrane
prokaryotes may appear in these places - Answer -singly at the end of a cell
-in pairs at the end of each cell
-as a tuft at the end of the cell
-scattered over the entire cell
biofilm - Answer one or more species of prokaryote aggregate to a community typically
surrounded by sticky protective slime ( at first bacteria is held together by pili) (dental plaque)
endospores - Answer thickly wrapped particles of genetic material and a few enzymes and
they can withstand harsh conditions
where can we find prokaryotes? - Answer -near boiling environments
