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14 Cards in this Set
- Front
- Back
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Organelles ('little organs')
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structures within the cell that perform cellular tasks
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Non-membranous (not covered by membrane/in direct contact with cytosol) organelles
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Cytoskeleton, Microvilli, Centrioles, Cilia, Ribosomes.
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Cytoskeleton (an organelle)
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Provides structural support and movement
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The three compartments of cytoskeleton
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Microfilaments, Intermediate Filaments, Microtubules
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Microfilaments
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Thinnest, flexible and strong. Contractile ability - function in cell crawling (amoeboid movement) and changes in cell shape.
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Microtubules
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give rigidity, act as freeway for other cell structures and involved in cell division
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Intermediate filaments
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stabilize cell and cell components
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Microvilli (an organelle)
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small finer-like projections, increases surface area of cell, line areas of the digestive tract
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Which organelle lines areas of the digestive tract and increases surface area of a cell?
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Microvilli
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Cilia (an organelle)
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long finger-like extensions of cell, can beat in rhythm, line respiratory tract, move mucus to throat for swallowing
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Which organelles function is compromised in smokers, resulting in 'smokers cough'?
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Cilia (which lines the respiratory tract)
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Centrioles (an organelle)
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short sections of microtubule, surrounded by centrosome, involved in cell division
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Ribosomes 'tradesmen of the cell' (an organelle)
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synthesise proteins, free ribosomes dispersed in cytoplasm, fixed ribosomes on Rough Endoplasmic Reticulum
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Membranous (separated from cytosol by membrane) Organelles
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Mitochondria, Endoplasmic reticulum, Golgi Apparatus, Lysosomes, Peroxisomes, Nucleus
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