10 Questions
What is the primary function of flagella in bacterial cells?
Movement
Which type of structure is used for corkscrew movement in spirochetes?
Axial filaments
What is the primary function of fimbriae in bacterial cells?
Attachment
What is the main difference between pili and fimbriae?
Length
Which type of structure is NOT involved in movement?
Fimbriae
Which of the following structures is primarily involved in genetic exchange between bacterial cells?
Pili
What is the main characteristic that distinguishes axial filaments from flagella?
Location
Which of the following structures is used for attachment to surfaces, but is not involved in genetic exchange?
Fimbriae
What is the primary function of flagella in terms of cell movement?
Whip-like movement
Which of the following structures is unique to spirochetes?
Axial Filaments
Study Notes
Bacterial Structures
- Flagella are long, whip-like structures used for movement in bacterial cells.
- Axial Filaments, also known as Endoflagella, are found in spirochetes, wrapped around the cell body, and are used for corkscrew movement.
Attachment and Genetic Exchange
- Fimbriae are short, bristle-like fibers that sprout off the cell surface, used for attachment.
- Pili are longer than fimbriae, used for attachment and genetic exchange between bacterial cells through a process called conjugation.
Test your knowledge of flagella, axial filaments, fimbriae, and pili, and learn how they differ in structure and function. Learn about the unique features of each appendage and their roles in bacterial movement, attachment, and conjugation. This quiz is perfect for microbiology and biology students!
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