WVSOM Class of 2012 Cytoskeleton
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| show | microfilaments, intermediate fibers, microtubules
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| show | intermediate filament
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| energy for microfilament polymerization comes from? what about microtubules? | show 🗑
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| show | actin and myosin; tubulin; keratins and nuclear lamins
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| function of cytoskeletal bundles? networks? anchoring? | show 🗑
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| show | hydrolyze ATP to crawl along filaments
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| show | increase or decrease filament length to induce pushing or pulling force
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| the most abundant intracellular protein is what? | show 🗑
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| show | f-actin filaments; ATP hydrolysis
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| rope-like alpha helices that wrap around f-actin? | show 🗑
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| regulatory subunits binding tropomyosin and actin? | show 🗑
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| actin crosslinking protein that forms networks in RBC's? | show 🗑
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| show | dystrophin
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| show | myosins
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| show | stress fibers
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| energy for assembly of microtubules come from what? | show 🗑
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| show | positive end
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| alpha and beta tubulins bind each other to form what? | show 🗑
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| show | tubulins (alpha and beta)
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| show | 13
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| rows of tubulins are called what? | show 🗑
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| show | chemotherapy
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| crosslinking proteins in microtubules are called what? | show 🗑
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| show | Dynein and Kinesin
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| what is the function of dynein? | show 🗑
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| show | moves cytosolic vesicles and bipartites associating with the mitotic spindle
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| examples of Microtubular Mediated Motility? | show 🗑
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| what is the arrangement of microtubules within flagella and cilia? | show 🗑
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| show | dynein arms
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| show | anterograde transport
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| from synapse to cell body is called? | show 🗑
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| show | basal body
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| show | believed to serve as nucleation centers for flagella and cilia outgrowth, they coordinate beating of cilia
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| show | polar, kinetochore, and astral
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| show | positive, negative
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| spindle shaped complexes of microtubules, which serve to separate daughter chromosomes during mitosis: | show 🗑
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| An area at each end of the spindle where the microtubules converge? | show 🗑
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| A protein structure joining centromeres to the microtubules of the spindle? | show 🗑
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| during anaphase, what happens to the microtubules? | show 🗑
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| a small organelle consisting of a perpendicular pair of centrioles surrounded by a matrix of two proteins: | show 🗑
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| the core of a centrosome, consisting of 9 microtubular triplets, but not including the surrounding protein matrix: | show 🗑
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| All intermediate filaments consist of alpha helical cores with similar sequences. These are what? | show 🗑
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| show | keratins
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| show | desmin
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| two major distinctions between the assembly of intermediate filaments and that of microfilaments or microtubules? | show 🗑
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| intermediate filament crosslinking occurs using what structures? | show 🗑
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| show | an IFAP that anchors desmin to the plasma membrane, as well as spectrin to the band 3 anion transporter of erythrocytes
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| On the nucleoplasmic face of the nuclear envelope there is a meshwork of intermediate filaments known as the: | show 🗑
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| the intermediate filaments are entirely what function? | show 🗑
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| show | keratins, nuclear lamins, and desmins
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| these are used to identify the origin of tumor cells, which often lose other distinguishing characteristics: | show 🗑
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| 3 parts of nuclear lamina? | show 🗑
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| which lamin remains bound to the vesicles? | show 🗑
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| generally speaking what are the functions of all 3 components of the cytoskeleton? | show 🗑
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| show | cross-linking proteins
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| show | carry a cargo along the filament (e.g. a vesicle) or they cause two filaments to slide past each other (e.g. muscle contraction)
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| Finger like projections of the plasma membrane, supported by internal actin bundles: | show 🗑
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| show | increase the surface area of the plasma membrane for absorption
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| what is the most common myosin isoform? | show 🗑
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| myosin subunits are what structure? | show 🗑
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| myosin subunits consist of what two factors? | show 🗑
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| show | tails and globular heads
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| two tails of myosin coil around each other to form dimers; this process uses what for energy? | show 🗑
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| in the sliding filament model, contractions cause what to slide along what? | show 🗑
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| Movement of vesicles through the intracellular membrane system is often directed along what two things? | show 🗑
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| show | actomyosin
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| ameboid movement is made possible by what structures? | show 🗑
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| how are microtubules arranged with regard to polarity? | show 🗑
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| show | axons
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| show | microtubule organizing centers (MTOC)
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| show | mitotic apparatus
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| show | during the S phase
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| show | astral MT
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| which MT extend halfway across the spindle? | show 🗑
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| show | kinetochore MT
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Created by:
mhassan
Popular Genetics sets