30 Questions
What is a key factor for the successful treatment of wastes?
Optimized environmental factors like pH, temperature, and dissolved oxygen concentration
What is the optimal pH range for most microbes to grow efficiently?
5-9
What are species called that have adapted to grow at pH values lower than 4?
Acidophiles
What must be available for action or assimilation by microorganisms in the treatment of wastes?
Contaminants and nutrients
What should the content and activity of essential microorganisms in treated waste be for successful treatment?
Sufficient
What may happen during biotreatment if optimal conditions are not maintained?
Unexpected or negative effects like emission of odors or toxic gases
What is the primary focus of environmental biotechnology?
Using biological processes to address environmental issues
Which of the following is NOT a common environmental issue mentioned in the text?
Loss of biodiversity
What is the process of using living organisms to decontaminate affected areas called?
Bioremediation
Which of the following is NOT a method for overcoming environmental issues mentioned in the text?
Deforestation
Which type of organisms are used in bioremediation?
Bacteria, yeast, algae
What are the advantages of using bioremediation?
Cost-effective and eco-friendly
What type of organisms are most active in participating in the biodegradation of organic matter?
Bacteria and Archaea
Which biotechnological agent is used as an adsorbent of heavy metals?
Fungi
What role do Protozoa play in the treatment of industrial hazardous solid, liquid, and gas wastes?
They absorb and digest organic food
Which type of organism assimilates light energy and is used in environmental biotechnology for the removal of organic matter and nutrients from water exposed to light?
Algae
Which of the following is an example of a conventional biofuel generated using microorganisms?
Bioethanol
What is a disadvantage of biotechnological treatment of wastes?
It can be expensive and energy-intensive
What is the main focus of molecular tools in bioremediation?
Amplifying the biodegradation ability of microorganisms through genetic engineering
What is the primary goal of metagenomic analysis in environmental research?
Understanding the genetic basis of different microbes
What does the metatranscriptomic approach reveal in bioremediation research?
The RNA content of microorganisms
How does the metaproteomic approach contribute to bioremediation research?
By characterizing the protein profile of microorganisms
What sequencing techniques are used in metagenomic analysis?
NGS and SOLiD
Which molecular approach provides insights into complex gene expression and regulation systems for bioremediation?
Metatranscriptomic approach
What is the purpose of maintaining the pH of a treatment medium?
To facilitate effective biotreatment by certain physiological groups of microorganisms
Which of the following substances can be used as a pH buffer in large-scale waste treatment?
CaCO3
Under which circumstances would an inoculum be added to start up or accelerate the biotreatment of wastes?
If the rate of bioremediation performed by indigenous microorganisms is not sufficient to achieve the treatment goal within the prescribed duration
What is the purpose of adding microorganisms to direct the biotreatment to the best pathway from many possible pathways?
To direct the biotreatment to the best pathway from many possible pathways
Which of the following is not a valid reason for adding microorganisms to start up or accelerate the biotreatment of wastes?
To increase the concentration of hazardous substances
Where can microorganisms suitable for the biotreatment of hazardous substances be isolated from?
The natural environment
Learn about the definition of environmental biotechnology and why it is important to study. Explore how biological processes can be used to address environmental issues such as contamination and pollution monitoring.
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