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| Question | Answer |
|---|---|
| cytoskeleton | A network of long protein strands that support the cell |
| actin | thin filament |
| microfilaments | long, thin fibers that function by helping the cell with movement and support |
| microtubules | thick hollow tubes that make up the cilia |
| tubulin | a globular protein that comprises microtubules |
| intermediate filaments | threadlike proteins that are in the cells cytoskeleton |
| keratin | tough fibrous protein found in skin, nails, and intermediate filaments |
| centrioles | a minute cylindrical organelle near the nucleus in animal cells |
| cilia | Hairlike projections that extend from the plasma membrane and are used for locomotion |
| Flagella | A long, whip-like filament that helps in cell motility. |
| cytoplasmic streaming | a circular flow of cytoplasm |
| plasmodesmata | An open channel in the cell wall of plants through which strands of cytosol connect from adjacent cells |
| glycoproteins | Membrane carbohydrates that are covalently bonded to proteins. |
| glycolipids | Membrane carbohydrates covalently bonded to lipids. |
| extracellular matrix | The collection of materials outside of the cell. |
| integrins | proteins in plasma membrane that connect both to extracellular matrix and cytoskeleton of animal cells. |
| fibronectin | A glycoprotein that helps cells attach to the extracellular matrix |
| collagen | glycoprotein in the extracellular matrix of animal cells that forms strong fibers |