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Download Organelles for support and locomotion
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Transcript
Organelles for support and locomotion The cytoskeleton Forms a framework for the cell It can be dismantled in one place and reassembled somewhere else changing the cell’s shape Microtubules – thin, hollow cylinders made of protein Microfillaments – smaller, solid protein fibers Microtubules & microfilaments: They act together as a scaffold to maintain the shape of the cell. They anchor and support many organelles They provide a “highway” system through with materials move within the cell. centrioles Found in the cells of animals and most protists. They occur in pairs They are made up of microtubules. They have an important roll in cell division. Cilia & flagella Both are organelles made of microtubules that aid the cell in locomotion or feeding. •Cilia: -short, numerous projections that look like hairs. -Their motion is similar to that of oars in a rowboat. -Found in Eukaryotes Flagella Longer projections It moves with a Whiplike motion A cell usually has only one or two flagella Found in Eukaryotes and Prokaryotes
