Biodegradation Quiz
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Questions and Answers

What is the main purpose of biodegradation?

  • To break down organic substances into smaller compounds for reuse by other organisms (correct)
  • To eliminate all organic waste from the environment
  • To produce toxic end products harmful to the environment
  • To convert waste materials into non-biodegradable forms

    • What is the outcome of biodegradation?

  • Fossilization
  • Vitrification
  • Petrification
  • Mineralization (correct)

    • What distinguishes composting from biodegradation?

  • Composting is a faster process than biodegradation
  • Composting produces toxic end products, while biodegradation does not
  • Composting involves inorganic waste breakdown, while biodegradation involves organic waste breakdown
  • Composting is a controlled process of organic waste breakdown, while biodegradation is a natural process (correct)

    • What is the requirement for a product to be considered compostable?

    <p>It needs to biodegrade within 180 days in a composting system and leave no toxicity in the soil</p> Signup and view all the answers

    How is biodegradation related to environmental remediation?

    <p>Biodegradation is mostly associated with environmental remediation, known as bioremediation</p> Signup and view all the answers

    What are the two types of enzymes involved in the biodegradation process?

    <p>Extracellular depolymerases and intracellular depolymerases</p> Signup and view all the answers

    What is the process called when the end products of depolymerization are carbon dioxide, water, or methane?

    <p>Mineralization</p> Signup and view all the answers

    In which type of metabolism do microbes use O2 to degrade contaminants?

    <p>Aerobic metabolism</p> Signup and view all the answers

    What is the outcome of the growth process in biodegradation?

    <p>Complete degradation (mineralization) of organic pollutants</p> Signup and view all the answers

    What is the main requirement for organic materials to be degraded aerobically?

    <p>Presence of oxygen</p> Signup and view all the answers

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