Biotech Final Exam 2025/2026 Most Recent Exam / Actual
Complete Real Exam Questions And Correct Answers
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Bioremediation - ANSWER-the branch of biotechnology that
uses biological
process (living organisms) to overcome
environmental problems
(polluted/degraded
ecosystems)
Example of bioremediation - ANSWER-the cleanup of oil spills
by the addition of
nitrate and/or sulfate fertilizers to facilitate the
decomposition of crude oil by
indigenous or exogenous
bacteria
CERCLA - ANSWER-Comprehensive Environmental Response,
Compensation,
and Liability Act - protect communities from
contaminated waste sites
,Advantages of bioremediation - ANSWER-harmful pollutants
are often converted into relatively harmless materials (CO2),
restore ecosystems, convert waste into energy, plants can
absorb and degrade the pollutants
leachate - ANSWER-polluted liquid produced by water passing
through buried
wastes in a
landfill
aerobic metabolism - ANSWER-metabolism that can
proceed only in the
presence of
oxygen
Anaerobic metabolism - ANSWER-chemical and physical
changes that take
place within the cells without the presence
of oxygen
oxidation - ANSWER-The loss of electrons from a substance
involved in a redox
reaction.
reduction - ANSWER-The addition of electrons to a
substance involved in a
redox
reaction.
,anaerobes - ANSWER-usually dominatebiodegradation
reactions that are
closestto the sourceof
contamination
phytoremediation - ANSWER-A method employed to clean
up a hazardous
waste site that uses plants to absorb and accumulate toxic
materials (water
lillies in India, sunflowers in
Chernobyl)
Soil Treatment strategies - ANSWER-ex situ
bioremediation, in situ
bioremediation
ex situ bioremediation - ANSWER-Involves removing the
polluted materials and
treating them off site: Slurry-phase bioremediation or
Solid phase
bioremediation
in situ bioremediation - ANSWER-Cleaning up at the
contaminated site without excavation or removal (stimulating
microorganisms in the contaminated soil or water)
bioventing - ANSWER-similar to FEB, includes pumping
source of oxygen for
, aerobic biodegrading
organisms
composting - ANSWER-The process of mixing decaying
leaves, manure and
other nutritive matter to improve and
fertilize soil.
landfarming - ANSWER-spread out contaminated soil such
that the pollutant
leachate along
water
biopile - ANSWER-aeration system provides O2
to microbes
irrigation/nutrient injection system provides
nutrients and moisture
bioaccumulation - ANSWER-The accumulation of a substance,
such as a toxic
chemical, in various tissues of a living organism. E.Coli
cleans up mercury
biosensor - ANSWER-use microbes to detect
toxin products
Ex: E. coli in water-waste
treatment plants
Complete Real Exam Questions And Correct Answers
(Verified Answers) Already Graded / A+ Guaranteed
Success!! Newest Exam / Just Released!!
Bioremediation - ANSWER-the branch of biotechnology that
uses biological
process (living organisms) to overcome
environmental problems
(polluted/degraded
ecosystems)
Example of bioremediation - ANSWER-the cleanup of oil spills
by the addition of
nitrate and/or sulfate fertilizers to facilitate the
decomposition of crude oil by
indigenous or exogenous
bacteria
CERCLA - ANSWER-Comprehensive Environmental Response,
Compensation,
and Liability Act - protect communities from
contaminated waste sites
,Advantages of bioremediation - ANSWER-harmful pollutants
are often converted into relatively harmless materials (CO2),
restore ecosystems, convert waste into energy, plants can
absorb and degrade the pollutants
leachate - ANSWER-polluted liquid produced by water passing
through buried
wastes in a
landfill
aerobic metabolism - ANSWER-metabolism that can
proceed only in the
presence of
oxygen
Anaerobic metabolism - ANSWER-chemical and physical
changes that take
place within the cells without the presence
of oxygen
oxidation - ANSWER-The loss of electrons from a substance
involved in a redox
reaction.
reduction - ANSWER-The addition of electrons to a
substance involved in a
redox
reaction.
,anaerobes - ANSWER-usually dominatebiodegradation
reactions that are
closestto the sourceof
contamination
phytoremediation - ANSWER-A method employed to clean
up a hazardous
waste site that uses plants to absorb and accumulate toxic
materials (water
lillies in India, sunflowers in
Chernobyl)
Soil Treatment strategies - ANSWER-ex situ
bioremediation, in situ
bioremediation
ex situ bioremediation - ANSWER-Involves removing the
polluted materials and
treating them off site: Slurry-phase bioremediation or
Solid phase
bioremediation
in situ bioremediation - ANSWER-Cleaning up at the
contaminated site without excavation or removal (stimulating
microorganisms in the contaminated soil or water)
bioventing - ANSWER-similar to FEB, includes pumping
source of oxygen for
, aerobic biodegrading
organisms
composting - ANSWER-The process of mixing decaying
leaves, manure and
other nutritive matter to improve and
fertilize soil.
landfarming - ANSWER-spread out contaminated soil such
that the pollutant
leachate along
water
biopile - ANSWER-aeration system provides O2
to microbes
irrigation/nutrient injection system provides
nutrients and moisture
bioaccumulation - ANSWER-The accumulation of a substance,
such as a toxic
chemical, in various tissues of a living organism. E.Coli
cleans up mercury
biosensor - ANSWER-use microbes to detect
toxin products
Ex: E. coli in water-waste
treatment plants
