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Flagellum
Motility structure in animal cell only
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Centrosome
Region where the cell's microtubules are initiated
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Cytoskeleton
reinforces cell's shape; functions in cell movement (includes microfilaments, Intermediate filaments, microtubules) made of protein
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Microvilli
projections that increase the cell's surface area
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Peroxisome
Organelle with various specialized metabolic functions; produces hydrogen then convers to water
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Mitochondrion
Organelle where cellular respiration occurs and most ATP is generated
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Lysosome
Digestive organelle where macromolecules are hydrolyzed
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Golgi apparatus
organelle active is synthesis, modification, sorting, and secretion of cell products
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Ribosomes
complexes that make proteins; free in cytosol or bound to rough ER or nuclear envelope
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Plasma membrane
membrane, enclosing the cell; regulates permeability
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Nucleus, Nuclear envelope
double membrane enclosing the nucleus; continuous with ER
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Nucleus, Nucleolus
Nonmembranous structure involved in production of ribosomes; a nucleus has one or more nucleoli
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Nucleus, Chromatin
Material consisting of DNA and proteins; visible in a dividing cell as individual condensed chromosomes
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Endoplasmic Reticulum (ER)
Network of membranous sacs and tubes; active in membrane syntheses and other synthetic and metabolic processes
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Central vacuole
Prominent organelle in older plant cells; storage and breakdown of waste products
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Chloroplasts
Photosynthetic organelle; converts energy of sunlight to chemical energy stored in sugar molecules
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Plasmodesmata
Cytoplasmic channels through cell walls that connect the cytoplasm of adjacent cells
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Cell wall
outer layer that maintains cell's shape and protects cell from mechanical damage
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