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 (D)</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 (D)</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 (A)</p> Signup and view all the answers

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

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

How would you describe the oxygen requirements of a microaerophile?

<p>Microaerophilic (B)</p> Signup and view all the answers

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

<p>It is sensitive to oxygen (C)</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 (D)</p> Signup and view all the answers

What is the shape of most animal viruses?

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

What type of viruses infect bacteria?

<p>Bacteriophages (B)</p> Signup and view all the answers

What is unique about the capsid of bacteriophages?

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

What is a characteristic of complex viruses?

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

What type of symmetry do most animal viruses exhibit?

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

What is required for viral multiplication?

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

What is necessary for a virus to multiply?

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

In which of the following is viral multiplication possible?

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

What is essential for the multiplication of a virus?

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

Where does viral multiplication take place?

<p>In a host cell (A)</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 (D)</p> Signup and view all the answers

What is the synonyms of exponential phase?

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

How many phases are there in the microbial growth curve?

<p>Four (B)</p> Signup and view all the answers

What comes after the log phase?

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

What is the first phase of microbial growth curve?

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

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