The endoplasmic reticulum is a network of tubules and flattened sacs that serve a variety of functions in the cell. There are two regions of the ER that differ in both structure and function. One region is called rough ER because it has ribosomes attached to the cytoplasmic side of the membrane.n liver cells the smooth ER produces enzymes that help to detoxify certain compounds. In muscles the smooth ER assists in the contraction of muscle cells, and in brain cells it synthesizes male and female hormones. The endoplasmic reticulum is only one component of a cell.
Supra means above.. Sometimes authors use it to refer to points they referred to earlier in their papers. APA style does not use this method of referring to resources. Instead, you should give an in-text citation whenever you want to use information from a resource. APA does not use the terms ibid., op. cit., or infra. either.
To use supra, the first time you cite a source in your paper, give the full citation and at the end in square brackets Provincial Bills Format: place the short form that you are giving to the source; it can either be a short form of the case name or a short form of an article using the authorâs last name.or more information on how to cite legal sources, refer to the McGill Guide which is available at the North Campus Library or the Social Science Library (KE259.C35 2010). Chapter and section numbers are included in this Quick Reference in brackets where possible. If in doubt, consult your instructor.