Bioconversion of Organic Materials Quiz
18 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the main purpose of grub composting?

  • To convert organic waste into high quality feedstuff and oil rich material (correct)
  • To clean up the environment by using waste as a substrate
  • To lower the release of atmospheric hydrocarbon pollutants
  • To produce biofuels like ethanol and methane

    • Which microorganism is responsible for producing methane as a biofuel?

  • Saccharomyces
  • Clostridium
  • Zymomonas
  • Methanobacterium (correct)

    • What is the desirable feature of biofuels mentioned in the text?

  • Derived from non-renewable sources
  • Low cost and easily available (correct)
  • Produced from non-organic matter
  • High cost and limited availability

    • What is the primary microorganism responsible for producing bioethanol?

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

    How does ethanol (gasohol) contribute to reducing pollution?

    <p>By being an efficient fuel and lowering atmospheric hydrocarbon pollutants</p> Signup and view all the answers

    'Gasohol' refers to a mixture of which two substances?

    <p>Gasoline and ethanol</p> Signup and view all the answers

    What is a potential disadvantage of over-production of biogas in nature?

    <p>Increased air pollution</p> Signup and view all the answers

    Why are biofuels considered cost-efficient compared to standard diesel?

    <p>Their overall cost-benefit is high</p> Signup and view all the answers

    What is a key advantage of biofuels in terms of engine performance?

    <p>They are adaptable to current engine designs</p> Signup and view all the answers

    What is a common source for the production of biofuels?

    <p>Manure from animals</p> Signup and view all the answers

    Why are biofuels considered cleaner fuels?

    <p>Because they produce fewer emissions on burning</p> Signup and view all the answers

    What makes the use of biofuels efficient in nature?

    <p>The renewable sources like manure and plants used for their production</p> Signup and view all the answers

    What is the main focus of bioconversion?

    <p>Converting organic materials into usable products or energy sources</p> Signup and view all the answers

    Which process involves the conversion of a source of feedstock into sugars for fermentation into ethanol?

    <p>Enzymatic hydrolysis</p> Signup and view all the answers

    What is the composition of syngas after gasification in the synthesis gas fermentation process?

    <p>Mostly carbon monoxide and hydrogen</p> Signup and view all the answers

    Which microorganism is used in the synthesis gas fermentation process to convert the syngas into ethanol?

    <p>Clostridium ljungdahlii</p> Signup and view all the answers

    What type of energy is co-generated using the heat generated by gasification in the synthesis gas fermentation process?

    <p>Excess electricity</p> Signup and view all the answers

    What is the purpose of exposure to bacteria or catalysts after cooling the syngas in the synthesis gas fermentation process?

    <p>To convert syngas into usable products</p> Signup and view all the answers

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser