Microbiology and Cell Biology Quiz
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Questions and Answers

Which of the following organisms has an optimal pH for survival similar to that of Helicobacter pylori?

  • Clostridium botulinum
  • Staphylococcus aureus
  • Lactobacillus acidophilus (correct)
  • Escherichia coli

What is the primary contribution of Hershey and Chase to the field of molecular biology?

  • Identification of protein synthesis machinery
  • Discovery of the structure of DNA
  • Isolation and characterization of RNA
  • Confirmation of DNA as the genetic material (correct)

Which molecule is the most abundant in living cells?

  • Proteins
  • Water (correct)
  • Carbohydrates
  • Lipids

What is the difference in cell division mechanisms between budding yeast and bacteria with respect to genome size?

<p>Budding yeast replicate their entire genome before cell division, while bacteria replicate their genome continuously (D)</p> Signup and view all the answers

What is the optimal pH for Helicobacter pylori to survive?

<p>pH 2 (A)</p> Signup and view all the answers

What is the most abundant molecule in living cells?

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

How many bacterial cells are estimated to be present in the human body?

<p>100 times the number of human cells (A)</p> Signup and view all the answers

What is the primary contribution of Hershey and Chase to the field of molecular biology?

<p>Identification of DNA as the genetic material (B)</p> Signup and view all the answers
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