Unit 1 - Topic 5 - Protein control of cell division - Section A - The cytoskeleton and cell division Flashcards

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1
Q

What does the cytoskeleton do

A

Gives mechanical support and shape to cells

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2
Q

What is the cytoskeleton made up of

A

Different protein structures including microtubules, which are found in all eukaryotic cells

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3
Q

What are microtubules

A

Microtubules are hollow cylinders composed of the protein tubulin. They radiate from the microtubule organising centre (MTOC) or centrosome.

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4
Q

What do microtubules control

A

The movement of membrane-bound organelles and chromosomes

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5
Q

What does cell division require

A

The remodelling of the cytoskeleton

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6
Q

What does the formation and breakdown of microtubules involve

A

Polymerisation and depolymerisation of tubulin

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7
Q

What do microtubules form that are active during cell division

A

Spindle fibres

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