Microbial Nutrition: Macro-Elements and Microbial Growth
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Questions and Answers

Which element is required for the activity of some enzymes, including some involved in protein synthesis?

  • Potassium (K+) (correct)
  • Calcium (Ca+2)
  • Iron (Fe+2 and Fe+3)
  • Magnesium (Mg+2)
  • Which macronutrient contributes to the heat resistance of bacterial endospores?

  • Potassium (K+)
  • Iron (Fe+2 and Fe+3)
  • Calcium (Ca+2) (correct)
  • Magnesium (Mg+2)
  • Which element serves as a cofactor for many enzymes, complexes with ATP, and stabilizes ribosomes and cell membranes?

  • Potassium (K+)
  • Magnesium (Mg+2) (correct)
  • Calcium (Ca+2)
  • Iron (Fe+2 and Fe+3)
  • Which element plays a major role in cellular respiration, being a key component of cytochromes and a cofactor for enzymes and electron–carrying proteins?

    <p>Iron (Fe+2 and Fe+3)</p> Signup and view all the answers

    Which macronutrient is used to build carbohydrates, lipids, proteins, and nucleic acids?

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

    Which metal element is present at the active site of some enzymes RNA and DNA polymerase?

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

    What is the primary function of Zinc (Zn) in microbes?

    <p>Present at the active site of some enzymes RNA and DNA polymerase</p> Signup and view all the answers

    Which element is needed for the synthesis of amino acids, purines, pyrimidines, and enzyme cofactors?

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

    What type of M.O. use light as their energy source?

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

    What is the final stage of aerobic respiration known as?

    <p>Oxidative phosphorylation</p> Signup and view all the answers

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