Podcast
Questions and Answers
Which of the following is a characteristic of Lactobacillus bacteria?
Which of the following is a characteristic of Lactobacillus bacteria?
- Exclusively aerobic with very waxy cell walls
- Possess prostheca and can fix nitrogen
- Form branching filaments and reproduce by spores
- Rod-shaped with no spores, found naturally in the stomach, mouth, intestines, and vagina (correct)
Which feature of Corynebacterium bacteria is described in the text?
Which feature of Corynebacterium bacteria is described in the text?
- They have very waxy cell walls that are resistant to Gram staining
- They form branching filaments and reproduce by spores
- They reproduce by snapping division, forming V-shapes or palisades (correct)
- They are exclusively aerobic and take months to grow on plates
Why are Mycobacterium and Nocardia bacteria difficult to identify using the Gram stain?
Why are Mycobacterium and Nocardia bacteria difficult to identify using the Gram stain?
- They reproduce by snapping division
- They form branching filaments and reproduce by spores
- They have very waxy cell walls that reject the crystal violet dye (correct)
- They are rod-shaped and lack spores
Which of the following is a characteristic of Actinomycetes bacteria?
Which of the following is a characteristic of Actinomycetes bacteria?
Which of the following is a famous member of the Alphaproteobacteria group?
Which of the following is a famous member of the Alphaproteobacteria group?
What is a key feature of the prostheca structure found in Alphaproteobacteria?
What is a key feature of the prostheca structure found in Alphaproteobacteria?
How do Mycobacterium and Nocardia bacteria differ from other Gram-positive bacteria in terms of staining?
How do Mycobacterium and Nocardia bacteria differ from other Gram-positive bacteria in terms of staining?
What is the purpose of the nitrogen-fixing ability of Rhizobium bacteria, which are Alphaproteobacteria?
What is the purpose of the nitrogen-fixing ability of Rhizobium bacteria, which are Alphaproteobacteria?
Which of the following is a key feature of the Actinomycetes group of bacteria?
Which of the following is a key feature of the Actinomycetes group of bacteria?
How do Mycobacterium and Nocardia bacteria differ from other Gram-positive bacteria in terms of their cell wall composition?
How do Mycobacterium and Nocardia bacteria differ from other Gram-positive bacteria in terms of their cell wall composition?
What is the main difference between a communicable disease and a contagious disease?
What is the main difference between a communicable disease and a contagious disease?
Which of the following best describes the term 'prevalence' in epidemiology?
Which of the following best describes the term 'prevalence' in epidemiology?
What is the primary focus of hospital epidemiology?
What is the primary focus of hospital epidemiology?
Which of the following factors is NOT listed as contributing to nosocomial infections in hospitals?
Which of the following factors is NOT listed as contributing to nosocomial infections in hospitals?
What is the primary difference between an acute disease and a subacute disease?
What is the primary difference between an acute disease and a subacute disease?
What is the primary focus of the field of epidemiology?
What is the primary focus of the field of epidemiology?
How are epidemics typically identified?
How are epidemics typically identified?
What is the primary characteristic of a latent disease?
What is the primary characteristic of a latent disease?
Which of the following statements about non-communicable diseases is true?
Which of the following statements about non-communicable diseases is true?
What is the primary difference between incidence and prevalence in epidemiology?
What is the primary difference between incidence and prevalence in epidemiology?
