To initiate microtubules and organise spindle fibres
1 of 9
What are the plasmodesmata?
Cytoplasmic channels to enable cell to cell communication between plant cells
2 of 9
Why are cells so small?
Limited by surface volume area and the need to rapidly diffuse chemicals in and out of the cell
3 of 9
What are microvilli?
Small finger like extensions on the surface of epithelial cells
4 of 9
What is the estimate of the amount of protein in the cytosol
20 - 30%
5 of 9
Why do cells and organelles have different compartments? 1. to sequester toxic substances 2. To simplify the metabolic system 3. to maintain different environments in different parts in the cell 4. to enable them to produce toxins
1, 2 and 3 are correct
6 of 9
Why is the nucleus compartmentalized?
To enable gene expression to be regulated by post transcriptional modifications
7 of 9
What size molecules can be transported out of the nuclear pores
40kDa
8 of 9
What are the 3 components of the cytoskeleton
Microtubules, Microfllaments and intermediate filaments
9 of 9
Other cards in this set
Card 2
Front
What are the plasmodesmata?
Back
Cytoplasmic channels to enable cell to cell communication between plant cells
Card 3
Front
Why are cells so small?
Back
Card 4
Front
What are microvilli?
Back
Card 5
Front
What is the estimate of the amount of protein in the cytosol
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