How To Use Primary cell In A Sentence

I'm a Mac and iPhone developer and I've just spent the past week using a Google Nexus One as my primary cell phone rather than an iPhone as I have for the past three years.
Such inhibition is mediated by a molecule called staphylococcal lipoteichoic acid (LTA) which acts on keratinocytes - the primary cell types found on the epidermis. Health News from Medical News Today
When a chemical demethylation of embedded cells was performed, a slight increase in labelling density was noticed, confirming that methyl esterification blocked anionic binding sites in the primary cell walls.
The enzyme randomly cleaves ß - 1,4 linked galacturonosyl residues of pectins from the middle lamella and primary cell-walls of higher plants, resulting in the maceration of plant tissues.
Three primary cell shapes exist: squamous (flat), cuboidal, and columnar. Tissues

In plant primary cell walls, cellulose microfibrils are coated with and cross-linked together with hemicellulose and the spaces in these networks are filled with pectins, which also form a network.
The majority of parenchymal cells located within the central cylinder had thin cellulosic primary cell walls that stained with aniline blue.
The effect occurs because of a molecule called staphylococcal lipoteichoic acid that acts on keratinocytes, the primary cell type found in the epidermis. Yahoo! News: Latest news headlines News Headlines | Top Stories
Thus, the primary cellular targets of ActivinB signaling during pregastrular endomesoderm development are the more vegetal (veg2) macromere derivatives. PLoS Biology: New Articles
According to current models of primary cell walls, cellulose microfibrils, which are the major tensile elements of the wall, interact with matrix components such as hemicelluloses, forming a complex network.
Fibres distal to the vascular elements as well as the parenchyma cells in the ground tissue had weakly birefringent cell walls, which may be attributed to a transverse orientation of cellulose microfibrils in the primary cell wall.
Naive monocytes and macrophages are the primary cell types encountered by the bacterium during the invasion process.