ECO 182 MIDTERM 3 EXAM QUESTIONS WITH COMPLETE
VERIFIED ANSWERS GRADED A++
Anthropocene
the time during which humans have had a substantial impact on our planet
Spores (n)
haploid cells produced from a diploid via meiosis
Sporophyte (2n)
diploid that has cells that undergo meiosis to produce spores
Gametes
haploid cells that fuse to make a zygote
Gametophyte
haploid that has cells that undergo mitosis to produce haploid gametes
Asexual
mitosis
Sexual
meiosis
Dinoflagellate sex is
opposite of humans
Sex
is to make haploid cells from a diploid and fuse two haploid cells to make a diploid
Mitosis makes
diploid
,Meiosis makes
haploid
Carl Woese
three domain based on r RNA (eukarya, bacteria, archaea)
3 fundamental life forms
bacteria, archaea, eukaryotes
archaea metabolize like
bacteria
In archaea, the process of DNA replication, transcription, and translations more
closely resemble...
eukaryotes
bacteria have
peptidoglycan in their cell walls
Archaea and Eukarya
-translation started with methionine
-histone proteins
bacteria translation begins with
f-met
only ___ species of bacteria and archaea have been named
5000
Microbiology
The study of microbes, microscopic organisms
no known archaea
, cause diseases in humans
Bacteria that cause disease are
pathogenic
Robert Koch
basis for germ theory
improvements in sanitation, nutrition, and antibiotics
reduced mortality rates of infectious diseases
Bioremediation
The use of bacteria and archaea to detoxify and restore polluted and degraded
ecosystems
extremophiles
live in extreme environments
blood falls
-ancient lake under glacier
-no light or oxygen, high sulfate
-using sulfur and iron
Universal primers
allowed rRNA sequences to be obtained without having to culture an organism
no free oxygen
for the first 2.3 billion years on earth
Cyanobacteria
Photosynthetic, oxygen-producing bacteria
all organisms require ___ to synthesize proteins and nucleic acids
VERIFIED ANSWERS GRADED A++
Anthropocene
the time during which humans have had a substantial impact on our planet
Spores (n)
haploid cells produced from a diploid via meiosis
Sporophyte (2n)
diploid that has cells that undergo meiosis to produce spores
Gametes
haploid cells that fuse to make a zygote
Gametophyte
haploid that has cells that undergo mitosis to produce haploid gametes
Asexual
mitosis
Sexual
meiosis
Dinoflagellate sex is
opposite of humans
Sex
is to make haploid cells from a diploid and fuse two haploid cells to make a diploid
Mitosis makes
diploid
,Meiosis makes
haploid
Carl Woese
three domain based on r RNA (eukarya, bacteria, archaea)
3 fundamental life forms
bacteria, archaea, eukaryotes
archaea metabolize like
bacteria
In archaea, the process of DNA replication, transcription, and translations more
closely resemble...
eukaryotes
bacteria have
peptidoglycan in their cell walls
Archaea and Eukarya
-translation started with methionine
-histone proteins
bacteria translation begins with
f-met
only ___ species of bacteria and archaea have been named
5000
Microbiology
The study of microbes, microscopic organisms
no known archaea
, cause diseases in humans
Bacteria that cause disease are
pathogenic
Robert Koch
basis for germ theory
improvements in sanitation, nutrition, and antibiotics
reduced mortality rates of infectious diseases
Bioremediation
The use of bacteria and archaea to detoxify and restore polluted and degraded
ecosystems
extremophiles
live in extreme environments
blood falls
-ancient lake under glacier
-no light or oxygen, high sulfate
-using sulfur and iron
Universal primers
allowed rRNA sequences to be obtained without having to culture an organism
no free oxygen
for the first 2.3 billion years on earth
Cyanobacteria
Photosynthetic, oxygen-producing bacteria
all organisms require ___ to synthesize proteins and nucleic acids
