Carbohydrates, lipids -- also known as fats -- nucleic acids, and proteins are the four major classes of biomolecules, or molecules that form the structural and functional components of cells. Each of these types of molecules consists of a carbon skeleton, or backbone, explain Drs.
Teen Mom Kailyn Lowry and her boyfriend Javi Marroquin are expecting their first child together. Credit: INFphoto.com. Kailyn Lowry is ready for baby No. 2! The Teen Mom 2 star is expecting her first child with husband Javi Marroquin, multiple sources confirm to Us Weekly. Kail is pregnant, a source confirms to Us.
Khloe Kardashian, Kim Kardashian West, and Kylie Jenner are all reportedly expecting children. Frederick M. Brown/Getty Images The INSIDER Summary: Khloe Kardashian and Kylie Jenner are both reportedly pregnant. Kylie is reportedly expecting a baby girl, while the sex of Khloe's alleged baby is unclear. Kim Kardashian West is also reportedly expecting a baby girl via a surrogate. Kim would most likely be the first to have her child, who is reportedly being carried by a surrogate, in January 2018.