Podcast
Questions and Answers
What is the primary mechanism by which bacteria cause disease?
What is the primary mechanism by which bacteria cause disease?
- Bacteria compete with host cells for nutrients
- Bacteria release toxins that damage host cells (correct)
- Bacteria induce an excessive immune response in the host
- Bacteria directly attack and destroy host cells
Which of the following is NOT one of the four main shapes of bacteria?
Which of the following is NOT one of the four main shapes of bacteria?
- Bacilli
- Spirilla
- Pleomorphic (correct)
- Cocci
Which of the following is NOT a key step in the Gram staining procedure for classifying bacteria?
Which of the following is NOT a key step in the Gram staining procedure for classifying bacteria?
- Applying a counterstain (safranin or basic fuchsin)
- Applying a primary stain (crystal violet)
- Applying a decolorizing agent (alcohol or acetone)
- Incubating the sample in a nutrient-rich medium (correct)
Which of the following is a characteristic of Gram-positive bacteria?
Which of the following is a characteristic of Gram-positive bacteria?
What is the primary function of the cell membrane in bacterial cells?
What is the primary function of the cell membrane in bacterial cells?
How do bacteria cause disease?
How do bacteria cause disease?
Which of the following is a common method used to classify bacteria based on their oxygen requirements?
Which of the following is a common method used to classify bacteria based on their oxygen requirements?
What is the primary way viruses cause disease?
What is the primary way viruses cause disease?
How do fungi primarily cause disease?
How do fungi primarily cause disease?
What is the main mechanism by which protozoa cause disease?
What is the main mechanism by which protozoa cause disease?
Which type of microorganism secretes toxins to cause disease?
Which type of microorganism secretes toxins to cause disease?
Which of the following is NOT a characteristic of bacterial cells?
Which of the following is NOT a characteristic of bacterial cells?
What is the primary purpose of the Gram staining technique in bacterial identification?
What is the primary purpose of the Gram staining technique in bacterial identification?
Which of the following is NOT a common bacterial cell shape?
Which of the following is NOT a common bacterial cell shape?
Which of the following is a key characteristic that differentiates bacteria from viruses?
Which of the following is a key characteristic that differentiates bacteria from viruses?
What is the primary function of the cell wall in a bacterial cell?
What is the primary function of the cell wall in a bacterial cell?
Which of the following is NOT a common method of bacterial classification?
Which of the following is NOT a common method of bacterial classification?
