Glossary for NanoBiotechnology

pseudopodium (plural pseudopodia):
Large cell-surface protrusion formed by amoeboid cells as they crawl. More generally, any dynamic actin-rich extension of the surface of an animal cell.

pump:
Transmembrane protein that drives the active transport of ions and small molecules across the lipid bilayer.

purine:
One of the two categories of nitrogen-containing ring compounds found in DNA and RNA. Examples are adenine and guanine.

pyrimidine:
One of the two categories of nitrogen-containing ring compounds found in DNA and RNA. An example is cytosine.

Parts of the glossary are from the following book:
Copyright 1983, 1989, 1994 From "Molecular Biology of the Cell" by Bruce Alberts, Dennis Bray, Julian Lewis, Martin Raff, Keith Roberts, James D. Watson. Reproduced by permission of Routledge, Inc., part of The Taylor & Francis Group.