Ectoplasm (cell biology) - Misplaced Pages

For other uses, see Ectoplasm.

Ectoplasm (also exoplasm) is the non-granulated outer part of a cell's cytoplasm, while endoplasm is its often granulated inner layer. It is clear, and protects as well as transports things within the cell. Moreover, large numbers of actin filaments frequently occur in the ectoplasm, which form an elastic support for the cell membrane. It contains actin and myosin microfilaments. Amoebae form an outer zone of cytoplasm, known as ectoplasm, where actin and myosin association help move it forward.

The term comes from the Ancient Greek words ἐκτός ektos, "outside" and πλάσμα plasma, "anything formed."

References

"Paramecium Coloring". www.biologycorner.com. Retrieved 23 April 2018.
Arthur C. Guyton, John E. Hall. Textbook of Medical Physiology, Eleventh Edition. Saunders.
Bogitsh, Burton J.; Carter, Clint E.; Oeltmann, Thomas N. (2019). Human parasitology (Fifth ed.). London: Academic Press. ISBN 978-0-12-813712-3.

v t e Structures of the cell / organelles
Endomembrane system	Cell membrane Nucleus Endoplasmic reticulum Golgi apparatus Parenthesome Autophagosome Vesicle Exosome Lysosome Endosome Phagosome Vacuole Acrosome Cytoplasmic granule Melanosome Microbody Glyoxysome Peroxisome Weibel–Palade body
Cytoskeleton	Microfilament Intermediate filament Microtubule Prokaryotic cytoskeleton Microtubule organizing center Centrosome Centriole Basal body Spindle pole body Myofibril Undulipodium Cilium Flagellum Axoneme Radial spoke Pseudopodium Lamellipodium Filopodium
Endosymbionts	Mitochondrion Plastid Chloroplast Chromoplast Gerontoplast Leucoplast Amyloplast Elaioplast Proteinoplast Tannosome Apicoplast Nitroplast
Other internal	Nucleolus RNA Ribosome Spliceosome Vault Cytoplasm Cytosol Inclusions Proteasome Magnetosome
External	Cell wall Extracellular matrix

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