Introduction to Microbiology

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Questions and Answers

What is the estimated total number of bacterial cells in the modern era of microbiology?

  • 1.5 x 10^20 cells
  • 3.5 x 10^25 cells
  • 2.5 x 10^30 cells (correct)
  • 4.0 x 10^35 cells

Which microorganism is responsible for the production of Lactose-free milk?

  • Acetobacter aceti
  • Rhizopus spp.
  • Propionibacterium freudenreichii (correct)
  • Saccharomyces cerevisiae

What is the role of Prochlorophytes in the ecosystem?

  • Major contributor of primary productivity in the open oceans (correct)
  • Help in recycling chemical elements in the air
  • Involved in wine fermentation
  • Responsible for vinegar production

Which microorganism is associated with the production of vinegar?

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

What process do microorganisms contribute to in oceans, lakes, and rivers?

<p>Basis of food chain (C)</p> Signup and view all the answers

Which microbe is involved in the production of rice cake (puto)?

<p>Streptococcus spp. (C)</p> Signup and view all the answers

Who is known as the Father of Industrial Fermentation?

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

Which antibiotic was discovered by Dr. Abelardo Aguilar in 1949?

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

What is the main focus of Zeenat et al.'s research mentioned in the text?

<p>Plastics degradation by microbes (B)</p> Signup and view all the answers

Which process leads to the production of acetone using Clostridium acetobutylicum?

<p>Industrial Fermentation (C)</p> Signup and view all the answers

Which country could prevent up to 73% crop losses using GM insect-resistant Bt eggplant?

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

What area does the US Environmental Protection Agency focus on in relation to pollution control?

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

What is the primary focus of the field of microbiology?

<p>The study of single-celled organisms and agents too small to be seen with the naked eye (D)</p> Signup and view all the answers

Which of the following is NOT a basic specialization under microbiology?

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

What does the abbreviation 'nm' stand for in the context of measurement units?

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

Which of the following is NOT mentioned as a scope of microbiology?

<p>Taxonomy and classification of plants (B)</p> Signup and view all the answers

Which of the following is an applied field of microbiology?

<p>All of the above (D)</p> Signup and view all the answers

What is the relationship between microns and millimeters as stated in the text?

<p>$1$ micron = $10^{-6}$ mm (C)</p> Signup and view all the answers

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