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.
âTeen Momâ Star Javi Marroquin Breaks Silence On Ex Kailyn Lowryâs Pregnancy. Kailyn Lowry shocked âTeen Momâ fans on Feb. 23 by officially announcing that sheâs expecting a third child after splitting with husband Javi Marroquin. Now, her ex is speaking out about the shocking news. See his response, right here! Wow, we are still stunned that Kailyn Lowry, 24, is pregnant again.