The Power of Gut Bacteria
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Questions and Answers

Which of the following is a trait common to all cells?

  • Plasma membrane (correct)
  • Nucleus
  • Cytoplasm
  • DNA

    • Which of the following statements about Escherichia coli (E. coli) is true?

  • It can make vitamins that mammals can't produce
  • It is a type of dangerous germ that can severely damage the human intestinal lining
  • It is a harmful bacterium found in the intestines of warm-blooded animals
  • It is one of the most common types of intestinal bacteria in mammals (correct)

    • Which of the following is a function of helpful intestinal bacteria?

  • Causing serious human infections
  • Making vitamins that mammals can't produce
  • Severely damaging the human intestinal lining
  • Crowding out dangerous germs (correct)

    • What is the main function of the cell's plasma membrane?

    <p>Regulating the movement of substances in and out of the cell</p> Signup and view all the answers

    What is the minimum number of Escherichia coli (E. coli) bacteria that can cause a serious human infection if ingested?

    <p>10</p> Signup and view all the answers

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