Land Area: 1  Land: 3,537,436 sq. miles (9,161,923 sq km) 2  Water: 181,274 sq. miles (469,497 sq km) 3  Total: 3,718,710 sq. miles (9,631,420 sq km)  Land Area: (individual 1  states) Land Area: (all countries)  Horizontal Width: 2,680 1  miles. Vertical Length: 1,582  miles.
Quick Answer. The smooth endoplasmic reticulum is the organelle responsible for the production of lipids in the cell. This particular reticulum also synthesizes carbohydrates and steroid hormones. The endoplasmic reticulum is made up of membranous sacs and tubules.
View Full Document. 1  2. Lipids: used To sTore energy, are The major componenTs of cell membranes, and serve as chemical messengers. 3. ProTeins: help cells keep Their shape, make up muscle tssues, speed up chemical reactons in cells, TargeT foreign partcles (such as bacTeria) for desTructon, and some carry messages or maTerials. 4.