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.
Lipids. Fats, oils, waxes, phospholipids and steroids all belong to the family of lipids. Steroids specifically derive from terpenes, the largest class of natural products, according to the Michigan State University Chemistry Department.Steroids occur throughout your body and play important physiological roles.holesterol. Animal products are rich sources of dietary cholesterol, but your body is also able to make all the cholesterol it needs. In addition to being a structural component of all cells, cholesterol helps your body digest fats and produce vitamin D, as well as hormones.