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 Schematic of typical animal cell, showing subcellular components. Organelles: (1) nucleolus (2) nucleus (3) ribosome (4) vesicle (5) rough endoplasmic reticulum (ER) (6) Golgi apparatus (7) Cytoskeleton (8) smooth ER (9) mitochondria (10) vacuole (11) cytoplasm (12) lysosome (13) centrioles
In cell biology, an organelle is one of several structures with specialized functions, suspended in the cytoplasm of a eukaryotic cell. Organelles were historically identified through the use of microscopy, and were also identified through the use of cell fractionation.A few large organelles probably originated from endosymbiont bacteria:
- chloroplast
- Other plastids, such as leucoplasts, amyloplasts, Etioplasts, Elaioplast, rhodoplasts, and chromoplasts.
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mitochondrion
Other organelles include:
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acrosome
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centriole
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cilium/ flagellum
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endoplasmic reticulum
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glyoxysome
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golgi apparatus
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lysosome
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melanosome
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myofibril
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nucleus
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parenthesome
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peroxisome
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ribosome
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vacuole
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vesicle
Other related structures:
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cytosol
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endomembrane system
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nucleosome
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microtubule
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cell membrane
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