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MED 109- BIOLOGY II > 48. FLAGELLA > Flashcards

48. FLAGELLA Flashcards

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1
Q
  1. What is the purpose of Flagella?
A
  • they propel most motile Bacteria
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2
Q
  1. How are the Flagella placed on the Bacteria?
A
  • they can be scattered about the surface
  • they can be concentrated at one or both ends
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3
Q
  1. What can be said about different Flagella?
A

THE FLAGELLA OF:
- bacteria
- Archaea
- Eukaryotes
- are composed of different proteins

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4
Q
  1. What kind of movement do Flagella have?
A
  • they rotate
  • they can either go in a Counter Clockwise direction
  • or they can go in a Clockwise direction
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5
Q
  1. What kind of Filaments are Flagella?
A
  • they are Helical Protein Filaments
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6
Q
  1. What is the size of Flagella?
A
  • they are 3-12 μm long
  • they have a diameter of 0.02 μm
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7
Q
  1. What depends on the location of Flagella?
A
  • the categories of bacteria
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8
Q
  1. What are the 4 categories of Bacteria that are dependent on Flagella Positioning?
A
  1. Monotrichous
  2. Lophotrichous
  3. Amphotrichous
  4. Peritrichous
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9
Q
  1. What are Monotrichous Bacteria?
A
  • they are bacteria that have 1 Flagellum

EXAMPLE:
- Vibria

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10
Q
  1. What are Lophotrichous Bacteria?
A
  • they are bacteria that have multiple flagella
  • these flagella are all located a one end

EXAMPLE:
- Spirilla

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11
Q
  1. What are Amphitrichous Bacteria?
A
  • they are Bacteria that have a single Flagellum on each
    of the two opposite ends
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12
Q
  1. What are Peritrichous Bacteria?
A
  • they have multiple Flagella
  • these are projecting in all directions

EXAMPLE:
- E. Coli
- Clostridium Parabotulinum

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13
Q
  1. Does this diagram make sense?
A
  • yes
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14
Q
  1. What are the 3 parts of the Prokaryotic Flagellum Structure?
A
  1. Motor
  2. Hook
  3. Filament
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15
Q
  1. What is the Flagellum Motor?
A
  • it is responsible for the rotation of the Flagellum
  • it is located within the Cell Wall
  • it is located within the Plasma Membrane
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16
Q
  1. Where does the energy for the Flagellum Motor come from?
A
  • the energy comes from the Proton Motive Force
  • this is a result of the H+ Pump
17
Q
  1. What is the Hook of the Flagellum?
A
  • this is located just outside of the cell wall
18
Q
  1. What is the Filament of the Flagellum?
A
  • this is made by subunits of proteins
  • these proteins are knowns as Flagellin

THE FILAMENT ALLOWS FOR:
- Clockwise manner rotation
- Counter-Clockwise manner rotation

19
Q
  1. What is Eukaryotic Flagella made of?
A
  • Tubulin
20
Q
  1. Does this image make sense?
A
  • yes
21
Q
  1. Where do we find Axial Filaments in Spirochetes?
A
  • they are located lengthwise
  • they are found between the Bacterial Plasma
    Membrane and the Outer Membrane
  • this space is called the Periplasmic Space
22
Q
  1. What kind of movement are Axial Filaments responsible for?
A
  • they have a twisting motion
  • their motion is snake like
23
Q
  1. Label this diagram.
A
  1. Flagella
    (Endoflagella)
  2. Outer Membrane
  3. Peptidoglycan
  4. Inner Membrane
  5. Cytoplasm
24
Q
  1. What are Polysaccharide Fibers?
A
  • some bacteria move by crawling or sliding
  • they use Polysaccharide Fibres instead of Flagella

EXAMPLE:
- Flexibacter Polymorphus

MED 109- BIOLOGY II (90 decks)

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