1 Since then, he was known as Jack of the Lantern or Jack o' Lantern.  The estimated area of pumpkins planted in Canada in 2010 is 2,922 hectares (7,220 acres). The estimated farm gate value of these pumpkins in 2009 was $15.3 million (CAD).
The Endoplasmic Reticulum The endoplasmic reticulum (ER) is a network of flattened sacs and branching tubules that extends throughout the cytoplasm in plant and animal cells.
Rough endoplasmic reticulum. Definition. noun. (cell biology). An endoplasmic reticulum (ER), a eukaryotic organelle made up of a system of membranous tubes and sacs, that is studded with ribosomes on its surface giving it a rough appearance under the microscope (hence its name).Supplement.cell biology). An endoplasmic reticulum (ER), a eukaryotic organelle made up of a system of membranous tubes and sacs, that is studded with ribosomes on its surface giving it a rough appearance under the microscope (hence its name). Supplement.