U1 - Protein Control Of Cell Division

Question 1

What is the cytoskeleton

Answer 1

The cytoskeleton gives mechanical support and shape to cells. E.g. microtubules

Question 2

What are microtubules

Answer 2

Microtubules are hollow cyclometer composed of the protein Tubulin.

Question 3

Where do microtubules come from?

Answer 3

Microtubules come from the mircrotubule organising centre MTOC or centrosome

Question 4

What do mircrotubules do?

Answer 4

They control the movement of memebrane bound organelles and chromosomes. They form spindle fibres that are active during cell division

Question 5

Cell division requires remodelling of the cytoskeleton

Answer 5

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Question 6

What techniques are used in the formation of microtubules

Answer 6

Polymerisation involves the formation of microtubules so they can grow in length

Depolymerisation allows the microtubules to condense

Question 7

What role do the microtubules perform on the cell division

Answer 7

They have spindle fibres that attach and separate the chromatids