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Questions and Answers
What are the six requirements for biodegradation?
What happens in the biotransformation process?
What is mineralisation in the context of biodegradation?
What is an example of biodegradation of a xenobiotic compound?
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What is the role of an electron acceptor in biodegradation?
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Study Notes
Biodegradation Requirements
- Six key requirements for biodegradation: availability of oxygen, suitable temperature, adequate moisture, suitable pH, presence of microorganisms, and availability of nutrients
- All these requirements must be met for biodegradation to occur
Biotransformation Process
- Biotransformation: process by which microorganisms convert a compound into a more water-soluble or toxic form
- Involves enzymatic reactions that modify the chemical structure of the compound
- Results in a change in the compound's physical and chemical properties
Mineralisation
- Mineralisation: complete breakdown of an organic compound into inorganic minerals such as carbon dioxide, water, and salts
- Ultimate goal of biodegradation, resulting in the release of inorganic compounds
Biodegradation of Xenobiotic Compounds
- Xenobiotic compounds: man-made substances not found in nature, such as pesticides and pharmaceuticals
- Example: biodegradation of DDT, a xenobiotic pesticide, by microorganisms that break it down into harmless compounds
Role of Electron Acceptors
- Electron acceptors: compounds that receive electrons during biodegradation, such as oxygen, nitrate, and sulfate
- Play a crucial role in biodegradation by facilitating the transfer of electrons during microbial metabolism
- Enable microorganisms to generate energy and sustain life during biodegradation
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Description
Test your knowledge of biodegradation requirements and biomineralization with this quiz. Explore the six essential requirements for biodegradation and learn about the process of mineralization by microorganisms.
