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.
'Theyâre overjoyed! When Kailyn told Javi, he cried,' Kailyn's sister-in-law Lidia Marroquin told In Touch. So soon: Kailyn has a three-year-old son, Isaac, with ex-boyfriend Jo Rivera and wasn't planning on having another baby so soon.