Cells

thumb|upright=1.7|Chromatophores in the skin of a squid Chromatophores are cells that produce color, of which many types are pigment-containing cells, or groups of cells, found in a wide range of animals including amphibians, fish, reptiles, crustaceans and cephalopods. Mammals and birds, in contrast, have a class of cells called melanocytes for coloration.

any biological cell forming the body of a multicellular organism other than a gamete, germ cell, gametocyte or undifferentiated stem cell

glial cell type in the retina

phenomenon characterized by the cessation of cell division

A cementoblast is a biological cell that forms from the follicular cells around the root of a tooth, and whose biological function is cementogenesis, which is the formation of cementum (hard tissue that covers the tooth root). The mechanism of differentiation of the cementoblasts is controversial but circumstantial evidence suggests that an epithelium or epithelial component may cause dental sac cells to differentiate into cementoblasts, characterised by an increase in length. Other theories involve Hertwig epithelial root sheath (HERS) being involved.

colony containing a fixed number of cells, with little or no specialization

thumb|Coenocyte of Sphaeroforma arctica thumb|Botrydium, showing a coenocytic body A coenocyte () is a multinucleate cell which can result from multiple nuclear divisions without their accompanying cytokinesis, in contrast to a syncytium, which results from cellular aggregation followed by dissolution of the cell membranes inside the mass. The word syncytium in animal embryology is used to refer to the coenocytic blastoderm of invertebrates. A coenocytic colony is referred to as a coenobium (: coenobia), and most coenobia are composed of a distinct number of cells, often as a power of two (4,

envelope that surrounds a bacterial cell and includes the cytoplasmic membrane and everything external, encompassing the periplasmic space, cell wall, and outer membrane if present

cell type

vesicle that is part of the extracellular region

B cell lymphocytes

methods for growing cells for biosynthetic production of molecules

cell type

hfr-strain

small spherical group of cells containing a cavity

Thyroid follicles lined by deeply eosinophilic Hürthle cells are seen in Hashimoto disease

Dedifferentiation () is a transient process by which cells become less specialized and return to an earlier cell state within the same lineage. This suggests an increase in cell potency, meaning that, following dedifferentiation, a cell may possess the ability to re-differentiate into more cell types than it did before dedifferentiation. This is in contrast to differentiation, where differences in gene expression, morphology, or physiology arise in a cell, making its function increasingly specialized.

In cell biology, a merozygote is a cell, usually bacterial, that is temporarily partial diploid as the result of DNA transfer processes like conjugation.