I am using this book, along with others, to study the biological and biochemical foundations of living systems for the MCAT. This book provides an in-depth look at cellular chemistry and functioning including cell structure, communication, and important metabolic processes such as respiration and photosynthesis. You'll have a solid understanding of the role of various macromolecules such as proteins, lipids (fats), DNA, and carbohydrates in cellular biology. For example, it details genetics down to the molecular basis of genetic inheritance, and much more.
This book is also structured in a way that translates well into outline-based note-taking. It's easy to read and illustrates most concepts with the experiments that discovered them or applications of their outcomes. I'd recommend this book to anyone who is looking for a better understanding of biology, or is looking for insight into what scientific principles make living things what they are, and ultimately, what makes us human.