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.
Candis Cayne, 44, is the woman dating Caitlyn Jenner, according to several reports. The Dirty Sexy Money actress, who is also a transgender woman, apparently began dating the former Olympian after appearing at an event in New York few weeks ago. Moreover, the pair is said to be in love.