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Flagellum

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Structural Basis for Biological Function (Molecular Motors) Quiz on Flagellum, created by gina_evans0312 on 17/12/2013.
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Quiz by gina_evans0312, updated more than 1 year ago
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Created by gina_evans0312 almost 11 years ago
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Resource summary

Question 1

Question
Flagella are involved in chemotaxis
Answer
  • True
  • False

Question 2

Question
Flagella are made of actin
Answer
  • True
  • False

Question 3

Question
Cilia and flagella are...
Answer
  • The same thing
  • Similar but flagella are shorter and only wave back and forth
  • Similar but cilia are shorter and only wave back and forth

Question 4

Question
What is the name of the central microtubule in the flagella?
Answer
  • Axoneme
  • Metaneme
  • Medianeme

Question 5

Question
Which motor protein holds it all together?
Answer
  • Dyenin
  • Myosin
  • Kinesin

Question 6

Question
Myosin attaches to two microtubules and bends them to create motion
Answer
  • True
  • False

Question 7

Question
The sliding of the microtubules over each other is powered by
Answer
  • ATP hydrolysis
  • GTP hydrolysis
  • UTP hydrolysis

Question 8

Question
What is this an image of?
Image:
Peritricious_Flagella (image/png)
Answer
  • Peritrichous bacteria
  • Petrichous bacteria
  • Pericentric Bacteria

Question 9

Question
Name the parts labelled by the arrows
Image:
Flagella_Structure (image/png)
Answer
  • Basal body
  • Hook
  • Filament
  • Flagella body
  • Coil
  • Root

Question 10

Question
The flagella is made up of the 'flagellum' protein
Answer
  • True
  • False

Question 11

Question
How many protofilaments make a filament?
Answer
  • 10
  • 11
  • 12

Question 12

Question
The filament can rotate 180 degrees
Answer
  • True
  • False

Question 13

Question
The following image shows Conformational Switching
Image:
Conformational_Switching (image/png)
Answer
  • True
  • False

Question 14

Question
Quick switching between the right and left configurations allows the bacteria to what?
Answer
  • Change directions
  • Speed up/slow down
  • Attack/release a surface

Question 15

Question
Which of the following are the two different repeat distances protofilaments can take
Answer
  • 52.7 A
  • 51.9 A
  • 53.6 A
  • 50.1 A

Question 16

Question
Switching between protofilament differences causes the bacteria to speed up/slow down
Answer
  • True
  • False

Question 17

Question
Which of the following is used to provide an overall map of filament structure?
Answer
  • Cryo-Electron Microscapy
  • X-Ray Crystallography
  • X-Ray fibre diffraction

Question 18

Question
X-Ray crystallography was used to sow the arrangement of the molecules in a fibre
Answer
  • True
  • False

Question 19

Question
X-Ray Ribre Diffraction was used to identify individual subunits
Answer
  • True
  • False

Question 20

Question
How was a fluorophore used to measure speed and rotation?
Answer
  • The filament was removed and fluorescent bead attached to the hook, which could still move freely
  • The hook was removed and fluorescent bead attached to the filament, which could still move freely
  • Fluorescent optics measures the changes in light intensity

Question 21

Question
What can be measured by the flurophore method?
Answer
  • Speed of rotation
  • Rotation width
  • Hook size
  • Filament structure
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