Bacterial Classification Quiz

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Questions and Answers

What is the primary resource for identifying bacteria and archaea based on morphological and biochemical characteristics?

  • Bergey’s Manual of Determinative Bacteriology (correct)
  • CDC DPDx
  • Mycobank
  • International Committee on Taxonomy of Viruses

Which of the following names identifies the fungus responsible for causing a specific disease?

  • Candida albicans (correct)
  • Mycobacterium tuberculosis
  • Streptococcus pyogenes
  • Escherichia coli

What is the basis of classification for parasites according to public health resources?

  • Bergey’s Manual of Systematic Bacteriology
  • CDC DPDx (correct)
  • Mycobank
  • International Committee on Taxonomy of Viruses

Which of the following correctly describes the structure of bacteria?

<p>Bacteria lack a nucleus and membrane-bound organelles. (B)</p> Signup and view all the answers

Which method is used for classifying bacteria and archaea based on genetic characteristics?

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

What happens to the human microbiome immediately after birth?

<p>It rapidly becomes diverse as the infant is exposed to various microbes. (D)</p> Signup and view all the answers

What is the primary function of the core microbiome in the human body?

<p>To provide necessary metabolic functions and stimulate immunity. (B)</p> Signup and view all the answers

Which of the following is NOT a type of microorganism involved in medical microbiology?

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

What can occur if the microbiota becomes unbalanced?

<p>Dysbiosis leading to chronic inflammation. (A)</p> Signup and view all the answers

Which of the following domains is known to include prokaryotic organisms?

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

Which statement about the shared species in the human microbiome is true?

<p>Vaginal microbiota have the least shared species among individuals. (D)</p> Signup and view all the answers

Which type of microorganism is not classified under the four main types identified in Medical Microbiology?

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

What is often referred to as the 'last organ' due to its significant impact on health?

<p>The human microbiome (C)</p> Signup and view all the answers

What is a characteristic feature of bacterial DNA?

<p>It is usually a single circular molecule. (D)</p> Signup and view all the answers

Which of the following fungal diseases is commonly associated with skin infections?

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

What distinguishes helminths from protozoa in terms of human infection?

<p>Helminths are generally visible to the naked eye in their adult stages. (B)</p> Signup and view all the answers

Which organism is an example of an ectoparasite?

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

Which type of microorganism is known for causing serious infections from a single organism due to its ability to multiply in humans?

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

Which condition can occur when a fungal infection spreads to the bloodstream?

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

What role do plasmids play in bacterial cells?

<p>They carry extra-chromosomal genetic information. (D)</p> Signup and view all the answers

What is a key difference in the structural classification of fungi compared to bacteria?

<p>Fungi are generally larger and are eukaryotic. (B)</p> Signup and view all the answers

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Study Notes

Bacterial Classification

  • Bacteria are single-celled microbes.
  • Bacterial cells have a simpler structure than other organisms, lacking a nucleus and membrane-bound organelles.

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