BRCC final exam bio 2
Most bacteria are _______ because they require a constant supply of oxygen to carry
out _______ - answer Obligate aerobes; cellular respiration
Which of the following is not true of Archaea? – answer Archaea reproduce sexually
An antibiotic is a drug that selectively kills ____________ - answer bacteria
Binary fission by bacteria is_______________ - answer Cell division by simple splitting
in two
The bacterium Vibrio fischeri lives within the light organ of a squid Euprymna scolopes.
The squid uses light produced by the bacterium to camouflage itself on moonlit nights.
The bacterium benefits by deriving food and shelter from the squid. In this relationship,
Vibrio is an example of a(n)_________ - answer Symbiotic mutualist
What is the goal of in bioremediation? - answerClean up areas polluted with toxic
compounds by using bacteria to remove the pollution
Earth's early atmosphere lacked oxygen gas. Which organisms were the first to add
enough oxygen to the air so that it began to accumulate in the atmosphere? -
answercyanobacteria
Bacterial cells obtain new DNA directly from their environment in a process
called___________ - answerTransformation
Archaea that tolerate and/or require high temperatures and low pH are called ________
- answerHyperthermoacidophiles
Endospores are formed by bacteria to __________ - answerSurvive under unfavorable
conditions
Primary producers in aquatic environments are mainly ____________, and primary
producers in terrestrial environments are mainly_______________ - answerPlants;
phytoplankton
The first land plants to have evolved were__________ - answerMosses, liverworts, and
hornworts
Informal classification based on type of movement and type of nutrition, identifies this
organism as a(n) _____ - answerAmoeba; phagotroph
, A coating on a surface that contains bacterial coloniesheld together by mucilage (eg.
Dental plaque) is known as a __________ - answerBiofilm
________________ are microscopic unicellular organisms with glassy cell walls and are
important phytoplankton in aquatic food webs. - answerDiatoms
Population explosions of ________________, cause algal blooms "red tides" that can
poison fish and humans. - answerDinoflagellates
Cyanobacteria play an important role in terrestrial ecosystems by converting nitrogen
( N2) gas into ammonia through nitrogen fixation. This is important because_______ -
answerPlants cannot use N2 gas directly, but can use nitrogen in the form of nitrites or
nitrates
How is the malarial parasite Plasmodium falciparumspread to another person? -
answerInfected mosquito biting someone
Microorganisms living by hydrothermal vents in the ocean engage in chemosynthesis
which means they obtain energy from ______compounds such as H2S, but are
__________ that make their own food. - answerInorganic; autotrophs
Alternation of generations means one phase of the life cycle is _________ and the other
is _____ - answerDiploid; haploid.
Moss sperm are ________________ and produced in __________________ -
answerMotile; antheridia
A cherry is a fruit derived from a mature _________ and the seed within is derived from
a(n) ______________ - answerOvary; ovule
Which group of plants lack vascular tissue? - answerBryophytes
The main effect of burning wood, coal, & petroleum on Earth's climate is ______ -
answerFires release carbon dioxide (a greenhouse gas) back into air which contributes
to global warming.
Double fertilization in flowering plants is important to the reproductive process because
it produces____ - answerBoth the zygote and the endosperm
While conducting a survey of biodiversity in Guam, you discover a plant with large,
conspicuous cone-like structures. Taking a cross section of an above ground root, you
notice a blue-green ring just beneath the surface. This plant is most likely a ______ -
answercycad
The term gymnosperm refers to the ______________ - answerSeeds being unprotected
and naked.
Most bacteria are _______ because they require a constant supply of oxygen to carry
out _______ - answer Obligate aerobes; cellular respiration
Which of the following is not true of Archaea? – answer Archaea reproduce sexually
An antibiotic is a drug that selectively kills ____________ - answer bacteria
Binary fission by bacteria is_______________ - answer Cell division by simple splitting
in two
The bacterium Vibrio fischeri lives within the light organ of a squid Euprymna scolopes.
The squid uses light produced by the bacterium to camouflage itself on moonlit nights.
The bacterium benefits by deriving food and shelter from the squid. In this relationship,
Vibrio is an example of a(n)_________ - answer Symbiotic mutualist
What is the goal of in bioremediation? - answerClean up areas polluted with toxic
compounds by using bacteria to remove the pollution
Earth's early atmosphere lacked oxygen gas. Which organisms were the first to add
enough oxygen to the air so that it began to accumulate in the atmosphere? -
answercyanobacteria
Bacterial cells obtain new DNA directly from their environment in a process
called___________ - answerTransformation
Archaea that tolerate and/or require high temperatures and low pH are called ________
- answerHyperthermoacidophiles
Endospores are formed by bacteria to __________ - answerSurvive under unfavorable
conditions
Primary producers in aquatic environments are mainly ____________, and primary
producers in terrestrial environments are mainly_______________ - answerPlants;
phytoplankton
The first land plants to have evolved were__________ - answerMosses, liverworts, and
hornworts
Informal classification based on type of movement and type of nutrition, identifies this
organism as a(n) _____ - answerAmoeba; phagotroph
, A coating on a surface that contains bacterial coloniesheld together by mucilage (eg.
Dental plaque) is known as a __________ - answerBiofilm
________________ are microscopic unicellular organisms with glassy cell walls and are
important phytoplankton in aquatic food webs. - answerDiatoms
Population explosions of ________________, cause algal blooms "red tides" that can
poison fish and humans. - answerDinoflagellates
Cyanobacteria play an important role in terrestrial ecosystems by converting nitrogen
( N2) gas into ammonia through nitrogen fixation. This is important because_______ -
answerPlants cannot use N2 gas directly, but can use nitrogen in the form of nitrites or
nitrates
How is the malarial parasite Plasmodium falciparumspread to another person? -
answerInfected mosquito biting someone
Microorganisms living by hydrothermal vents in the ocean engage in chemosynthesis
which means they obtain energy from ______compounds such as H2S, but are
__________ that make their own food. - answerInorganic; autotrophs
Alternation of generations means one phase of the life cycle is _________ and the other
is _____ - answerDiploid; haploid.
Moss sperm are ________________ and produced in __________________ -
answerMotile; antheridia
A cherry is a fruit derived from a mature _________ and the seed within is derived from
a(n) ______________ - answerOvary; ovule
Which group of plants lack vascular tissue? - answerBryophytes
The main effect of burning wood, coal, & petroleum on Earth's climate is ______ -
answerFires release carbon dioxide (a greenhouse gas) back into air which contributes
to global warming.
Double fertilization in flowering plants is important to the reproductive process because
it produces____ - answerBoth the zygote and the endosperm
While conducting a survey of biodiversity in Guam, you discover a plant with large,
conspicuous cone-like structures. Taking a cross section of an above ground root, you
notice a blue-green ring just beneath the surface. This plant is most likely a ______ -
answercycad
The term gymnosperm refers to the ______________ - answerSeeds being unprotected
and naked.
