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14 Cards in this Set
- Front
- Back
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Microtubules
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1. in all cells except eryythrocytes.
2. found in cyto of all cells 3. each cell has MTOC 4. made up of a b tubulin |
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1 microtubule filament dimensions
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13 tubulin filaments form one spiral tube
one microtuble = 24 diameter |
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Function of Microtubles
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1. not related to structure - related to MAPS
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MAPs
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kinesin MAP1c
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Location of microtubles
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location depends on tipe of microtuble ie. mitotic, anterograde retrograde axonal transport.
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Kinesin
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1. atpase activity
2. move from - to + end |
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Functions of microtubles
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1. move cilia (ie cilia in trachea)
2. cell support 3. cell division 4. move organelles ie transport vesicles along axon |
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axonemes
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1. apart of flagella, cilia, and centrioles.
2. 9x2 + 2(not a doublet) arrangment |
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dyenin arms
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a map that reversible binds to adjacent doublet
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Basal Body
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proximal to axoneme of a cilium. 9x3
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Centriole
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1. 9x3 and no dynein arms
2. move as a pair 3. found adj to nucleus |
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actin fuctions
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1. cytokinesis
2. form terminal web which attach to zonula adherens 3. locmotion - movement of motile cells..phagocytes. 4. move organells 5. move cell surface proteins 6. microvilli - structural support 7. muscle contraction |
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intermediate filaments structure
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fibrous proteins; 2 coinled pp; non polar
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Roles of if's
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1. cytoskleton - postion organelles and organizing cytoplasm
2. associated with microtubles 3. nuclar lamins (A B and C) 4. different cell types have different tyles of intermeidate filaments) |
