Microbial Nutrition and Ecology
10 Questions
0 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

Which of the following elements are not among the 6 elements that make up 96% of a cell's composition?

  • Sodium (correct)
  • Nitrogen
  • Phosphorus
  • Carbon

    • What is the primary source of carbon for heterotrophs?

  • Nucleic acids and sugars
  • Proteins and lipids
  • Organic molecules produced by other living organisms (correct)
  • Inorganic molecules such as CO₂

    • What is the primary function of micronutrients in microbial nutrition?

  • Enzyme function and maintenance of protein structure (correct)
  • DNA replication and cell division
  • Cell structure and metabolism
  • Energy production and carbohydrate synthesis

    • What is the term for microorganisms that derive their energy from organic compounds and their carbon source from inorganic compounds?

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

    What is the approximate percentage of water in the cytoplasm of a microorganism?

    <p>70%</p> Signup and view all the answers

    What is the primary source of nitrogen for heterotrophs?

    <p>Proteins, DNA, RNA, and ATP</p> Signup and view all the answers

    What is the role of sulfur in proteins?

    <p>Forming disulfide bonds</p> Signup and view all the answers

    What is the characteristic of facilitated diffusion?

    <p>Transport of polar molecules and ions</p> Signup and view all the answers

    What is the effect of a hypertonic solution on a cell?

    <p>The cell will shrink and die</p> Signup and view all the answers

    What is the term for the transport of molecules against a concentration gradient, requiring energy and carrier proteins?

    <p>Active transport</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser