Microbes in Animal and Insect Intestines
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Questions and Answers

What is the role of bacteria and other microbes in the intestines of animals and insects?

  • They produce harmful toxins
  • They digest nutrients and produce vitamins and growth factors (correct)
  • They breakdown proteins into amino acids
  • They absorb vitamins and growth factors

    • Where do bacteria and other microbes digest nutrients and produce vitamins and growth factors?

  • In the kidneys of animals
  • In the liver of animals
  • In the intestines of animals and insects (correct)
  • In the stomach of animals

    • What is a result of the digestion of nutrients by bacteria and other microbes in the intestines of animals and insects?

  • Absorption of minerals
  • Breakdown of proteins into amino acids
  • Production of harmful toxins
  • Production of vitamins and growth factors (correct)

    • What is the relationship between bacteria and other microbes and animals and insects?

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

    What is the primary function of bacteria and other microbes in the intestines of animals and insects?

    <p>To digest nutrients and produce vitamins and growth factors</p> Signup and view all the answers

    What kind of oxygen requirement does a microaerophile have?

    <p>Requires a small amount of oxygen in metabolism</p> Signup and view all the answers

    What happens to a microaerophile if it is exposed to normal atmospheric oxygen levels?

    <p>It dies</p> Signup and view all the answers

    How would you describe the oxygen requirements of a microaerophile?

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

    What can be said about the oxygen tolerance of a microaerophile?

    <p>It is sensitive to oxygen</p> Signup and view all the answers

    What is a characteristic of microaerophiles in terms of their oxygen requirement?

    <p>They require a small amount of oxygen</p> Signup and view all the answers

    What is the shape of most animal viruses?

    <p>Icosahedral or near-spherical</p> Signup and view all the answers

    What type of viruses infect bacteria?

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

    What is unique about the capsid of bacteriophages?

    <p>It is neither purely helical nor purely icosahedral</p> Signup and view all the answers

    What is a characteristic of complex viruses?

    <p>They possess extra structures</p> Signup and view all the answers

    What type of symmetry do most animal viruses exhibit?

    <p>Chiral icosahedral symmetry</p> Signup and view all the answers

    What is required for viral multiplication?

    <p>A host cell</p> Signup and view all the answers

    What is necessary for a virus to multiply?

    <p>A host cell</p> Signup and view all the answers

    In which of the following is viral multiplication possible?

    <p>A host cell</p> Signup and view all the answers

    What is essential for the multiplication of a virus?

    <p>A host cell</p> Signup and view all the answers

    Where does viral multiplication take place?

    <p>In a host cell</p> Signup and view all the answers

    What are the distinct phases of microbial growth curve when bacteria are grown in a broth?

    <p>Lag phase, Log phase, Stationary phase</p> Signup and view all the answers

    What is the synonyms of exponential phase?

    <p>Log phase</p> Signup and view all the answers

    How many phases are there in the microbial growth curve?

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

    What comes after the log phase?

    <p>Stationary phase</p> Signup and view all the answers

    What is the first phase of microbial growth curve?

    <p>Lag phase</p> Signup and view all the answers

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