Estrella Mountain Community College
Online Biology Book: Chemistry Ii: Water and Organic Molecules
Online biology textbook discussing the chemical nature of water, and the importance of its molecular structure to life. Also discusses at length the organic molecules nucleic acids, proteins, lipids, and carbohydrates.
Estrella Mountain Community College
Online Biology Book: Atp and Biological Energy
Through full-color images and concise information, learn about adenosine triphosphate, or ATP, the molecular unit of energy currency of cells.