Biology - 1.5 - part 1 - cytoskeleton and cell division

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9 Terms

1
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What does the cytoskeleton give to the cell?

Mechanical support and shape.

2
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What does the cytoskeleton consist of?

A network of proteins extending throughout the cytoplasm.

3
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What is the cytoskeleton made up of?

Different protein structure including microtubules. (which are found in all eukaryotic cells)

4
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Is the cytoskeleton static or dynamic?

Dynamic.

5
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What are microtubules made up of?

Proteins called tubulin.

6
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What do microtubules control?

The movement of membrane bound organelles and chromosomes

7
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What does cell division require of the cytoskeleton?

Cell division requires remodelling of the cytoskeleton.

8
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What does the formation and breakdown of microtubules involve?

The polymerisation and depolymerisation of tubulin.

9
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Why do microtubules play an important role during cell division?

They form the spindle fibres that are active during cell division.