Cytoskeleton Flashcards

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1
Q

What are the functions of the cytoskeleton?

A
  • Supports the cell
  • Give the cell its shape
  • Controls cell movement
  • Holds organelle in place
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2
Q

What is the structure of the cytoskeleton?

A
  • Is a stability of fibres necessary for the shape and stability of the cell
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3
Q

What is the structure of the cilia(and undulipolia)?

A
  • 9 pairs of microbtubules arranged in a cylinder with a pair in the middle (9 + 2) arrangement).
  • Each pair has its own tiny motor protein.
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4
Q

What is the function of the cilia(and undulipolia)?

A
  • turn in a corkscrew motion to waft mucus or propelling sperm
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5
Q

What is the structure of centrioles?

A
  • 9 triplets of microtubules arranged in a cylinder.
  • A pair is known as a CENTROSOME
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6
Q

What is the function of centrioles?

A
  • produces spindle fibres during cell division
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7
Q

What is the structure of the flagellae?

A
  • a single actin fibres
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8
Q

What is the function of the flagellae?

A
  • moves in a whip-like fashion to propel bacteria.
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9
Q

Where is the location of the micofilaments?

A
  • forming a network around the inside of the cell.
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10
Q

What is the structure of the micofilaments?

A
  • contractile fibres formed from the protein actin
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11
Q

What is the function of the micofilaments?

A
  • cell movement
  • cell contraction
  • cell division
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12
Q

What is the structure of the microtubules?

A
  • hollow tubes made out of alpha and beta tubulin.
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13
Q

Where is the microtubles located?

A
  • concentrated outside of he cell
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14
Q

What is the Function of the microtubules?

A
  • provides shape of the cell
  • cell movement
  • cell division
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15
Q

Where are the Intermediate fibres located?

A
  • randomly scattered around the cell.
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16
Q

What is the structure of the intermediate fibres?

A
  • Long strands of protein made from actin.
17
Q

What is the function of the intermediate fibres?

A
  • fibres give mechanical strength to the cells and help maintain integrity.