Podcast
Play an AI-generated podcast conversation about this lesson
Questions and Answers
What is the characteristic feature of a nucleoid?
What is the characteristic feature of a nucleoid?
- It has a single circular molecule of DNA (correct)
- It has mitotic apparatus
- It has a rigid exterior cell wall of peptidoglycan
- It has a nuclear membrane
What is the main difference between Gram + and Gram - bacteria?
What is the main difference between Gram + and Gram - bacteria?
- The shape of their cells
- The biochemical properties of their cell wall (correct)
- The arrangement of their flagella
- The type of sterols they contain
What is the purpose of the Gram stain?
What is the purpose of the Gram stain?
- To visualize yeast
- To differentiate between bacteria and viruses
- To identify the morphology of bacteria
- To differentiate between different types of bacteria (correct)
What is true about the naming of organisms?
What is true about the naming of organisms?
Signup and view all the answers
What is the characteristic feature of bacterial cell walls?
What is the characteristic feature of bacterial cell walls?
Signup and view all the answers
What is the characteristic of the peptidoglycan layer in Gram-positive bacteria?
What is the characteristic of the peptidoglycan layer in Gram-positive bacteria?
Signup and view all the answers
Which of the following is a component of the outer cell membrane of Gram-negative bacteria?
Which of the following is a component of the outer cell membrane of Gram-negative bacteria?
Signup and view all the answers
What is the purpose of the safranin counterstain in Gram staining?
What is the purpose of the safranin counterstain in Gram staining?
Signup and view all the answers
Which of the following bacteria is Gram-variable?
Which of the following bacteria is Gram-variable?
Signup and view all the answers
What is the main difference between the cell walls of Gram-positive and Gram-negative bacteria?
What is the main difference between the cell walls of Gram-positive and Gram-negative bacteria?
Signup and view all the answers
Which of the following bacteria is not visualized by Gram staining?
Which of the following bacteria is not visualized by Gram staining?
Signup and view all the answers
