Bacterial Appendages and Special Structures Quiz

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Questions and Answers

What is the function of flagella in bacteria?

To provide motility (correct)
To produce endospores
To help with DNA transfer
To break down nutrients

What is the difference between the flagella of gram-negative and gram-positive bacteria?

Gram-negative have S M rings and rods, while gram-positive have 2 sets of rings and rods
Gram-negative have 2 sets of rings and rods, while gram-positive have S M rings and rods (correct)
Gram-negative have a hook and basal body, while gram-positive have a sheath around the filament
Gram-negative have a sheath around the filament, while gram-positive have a hook and basal body

What is the function of pili/fimbriae in bacteria?

To break down nutrients
To produce endospores
To provide motility
To adhere to surfaces (correct)

Which type of bacteria has pili/fimbriae?

Some gram-negative bacteria (D) Signup and view all the answers

What is the function of chemotaxis in bacteria?

To detect chemicals and signal flagella to respond (D) Signup and view all the answers

What is the difference between monotrichous and peritrichous flagella?

Monotrichous have one flagellum, while peritrichous spread over the entire surface (C) Signup and view all the answers

What is the function of the hook and basal body in flagella?

The hook links the filament to the body, while the basal body drives flagellar motion (A) Signup and view all the answers

What is the function of the sheath around the filament in some prokaryotes?

It provides structural support (C) Signup and view all the answers

What is the function of sex pili in bacteria?

To donate F factor for bacterial conjugation (D) Signup and view all the answers

What is the difference between lophotrichous and amphitrichous flagella?

Lophotrichous have a cluster of flagella at one or both ends, while amphitrichous have one flagellum at each end (B) Signup and view all the answers

What is the function of lectin in pili/fimbriae?

To bond to cell surface polysaccharides (A) Signup and view all the answers

What is an example of a pathogenic bacteria that uses flagella to invade host cells?

Helicobacter pylori (B) Signup and view all the answers

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Description

"Test your knowledge on Bacterial Appendages and Special Structures! Learn about the significance of flagella, surface layers, cytoplasm, and endospores in bacterial motility and survival. Identify the different types of flagella and their arrangement in Gram-negative and Gram-positive bacteria. Challenge yourself with this quiz and discover the fascinating world of bacterial structures and functions!"