If you talk to students in the years preceding you in college, most of them will tell you that biochemistry is a difficult question. Is not!
Biochemistry studies chemical reactions occurring in cells. Life at the molecular level (and, therefore, biochemistry and molecular biology) is the formation of chemical bonds. What living organisms do, for example, grow and create “machines” that allow them to move, generate electrical impulses and perform other functions, all have one thing in common at the molecular level. All of them included atoms and / or small molecules joined together by chemical bonds. When a house is being built, the bricks “connect” together with the cement. When the structural components of cells and cellular “machines” are built, the molecules that make up these structures are “joined” together by chemical bonds.
Thus, a large part of biochemistry involves the study of the formation of chemical bonds between the molecules that make up the cells. For example, amino acid molecules are linked together by chemical bonds to make proteins, which are the most important structural components of cells. The nucleotide molecules are linked together by chemical bonds to form DNA, which is the material from which genes are made.
For the formation of chemical bonds requires energy. In this book we will look at the biochemistry of where this energy comes from. Now it is not necessary to ingeniously understand that if energy takes the form of a chemical bond, then the break of another chemical bond is a potentially good source of this energy. This is how cells get the energy they need to form chemical bonds between amino acids to form proteins, between nucleotides to form DNA, and so on. Chemical bonds in some molecules are killed, and the energy released during the destruction of these bonds is used to form other chemical bonds. So why does biochemistry seem so difficult? Unfortunately, the processes of formation or destruction of chemical bonds usually occur in several stages, and not in one step. In addition, many of these reaction pathways are interconnected. All this makes it difficult to break down the subject of biochemistry into discreet, separate sections that are easy to study and study. Even when you break the metabolic paths down to manageable sizes, you never understand what happens until you see how the different paths interact with each other. It is a bit like a puzzle. You can only deal with one part at a time, but each part in isolation does not make most of the image. Unfortunately, there is no simple answer to this question. Please just keep exploring all the different paths and structures separately. Do not be discouraged when it is difficult for you to see the big picture. When you have studied all the parts (and there are really not so many of them!), You will eventually find that you can put them together to form a wonderful picture that is closest to understanding the meaning of life,
Whenever you become very embarrassed, when you plow through these huge biochemistry textbooks or get lost when you try to keep up with your biochemical lectures, ask yourself: “What chemical bond is formed or broken? and it will be much easier for you to follow what is happening.
I wish you an interesting time on your journey, to understand what is known about how life works, and, of course, good luck with the exams that you must pass in order to allow you to continue and continue any career career that you talked about.
