Multicellular Organs and Organisms

Abstract

In unicellular organisms the single cell performs all of the necessary functions for life. In multicellular organisms groups of cells specialize within tissues and organs performing specific tasks.

Keywords: cadherin; proliferation; differentiation

Figure 1.

The role of the stem cell in haematopoiesis.

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Further Reading

Alberts B, Bray D, Lewis R et al. (1994) Molecular Biology of the Cell, 3rd edn. New York: Garland.

Custodio MR et al. (1998) Primomorphs generated from dissociated cells of the sponge Suberites domuncula: a model system for studies of cell proliferation and cell death. Mechanisms of Ageing and Development 105: 45–49.

Hobmayer E, Holstein TW, David CN et al. (1996) Identification of a Hydra homologue of the betacatenin/plakoglobin/amadillo gene family. Gene 172: 155–159.

Muller WEG (1998) Origin of Metazoa: sponges as living fossils. Naturwissenschaften 85: 11–25.

Noselli S and Agnes F (1999) Roles of the JNK signalling pathway in Drosophila morphogenesis. Current Opinion in Genetics and Development 9: 466–475.

Perillo NL, Marcus ME and Baum LG (1998) Galectins: versatile modulators of cell adhesion, cell proliferation and cell death. Journal of Molecular Medicine 76: 407–412.

Rehorn KP, Thelen H, Michelson AM and Reuter R (1996) A molecular aspect of hematopoiesis and endoderm development common to vertebrates and Drosophila. Development 122: 4023–4031.

Watson J et al. (1995) Molecular Biology of the Gene. New York: John Wiley.

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How to Cite close
Andrews, Elizabeth R.(Apr 2001) Multicellular Organs and Organisms. In: eLS. John Wiley & Sons Ltd, Chichester. http://www.els.net [doi: 10.1038/npg.els.0001272]