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.
Endoplasmic Reticulum Structure. Endoplasmic reticulum is an extensive membrane network of cisternae (sac-like structures), which are held together by the cytoskeleton. The phospholipid membrane encloses a space, the lumen from the cytosol, which is continuous with the perinuclear space.