Histo 2 The Cell biolgoy/Nomembranous Organelles Flashcards
Where is actin present in ? What are g-actin ? F-actin, What two metals are needed for the polymerazing of actin? How is polymerization regulated ?
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what is the purpose of actin filaments ? Which side is the G-Actin binding more ? Which side is the barbed, and which side is pointed end ? Where does polymerization occur ?
What is treadmilling
Treadmilling is a phenomenon observed in many cellular cytoskeletal filaments, especially in actin filaments and microtubules. It occurs when one end of a filament grows in length while the other end shrinks resulting in a section of filament seemingly “moving” across a stratum or the cytosol.
How does listeria move in the cell ? What is it called ?
What is pathfinding ? How is it used in neurons ? What is it made out of ?
Axon guidance (also called axon pathfinding) is a subfield of neural development concerning the process by which neurons send out axons to reach the correct targets. Axons often follow very precise paths in the nervous system, and how they manage to find their way so accurately is being researched.
what controls actin organization ? What does actin bundling proteins do ? What does fascin and fimbrim do ? What is the purpose of a actin capping protein ? What is the role of tropomodulin ? What are actin motor proteins ? What happens when agen inhibit dissembly of actin ? What about assembly ?
.Know this chart!
What is the role of Myosin 2 ?
muscle contraction
What are the fuctions of microtubulues ? Is it dynamic ? two locations where it grow from ? How many dimers it is it made out of , and of what ? How are the subuntis formed ?
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Where do microtublus grow from ? What do the polymerazation of the microtubules requre ?Where is the negetive end and positive end located in the centriole? What is the role of microtubule associated proteins ?
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How many pairs of microtublues are centrioles and MTOC composed of ? Where is it located ? What happens when the MTOC leaves, how does it effect centrioles ? Where in the MTOC does y-tublin start to grow ? What are some roles of the centriole?