Biochemistry

Many of the biochemical reactions in a living cell can go both ways. For example, mammalian cells both catabolize and synthesize glucose. The rates at which these reactions occur must be regulated (Enzyme regulation); otherwise, energy is wasted by what is called a futile cycle carrying out opposing reactions at …

Buffers are the mixture of weak acids and their salts of strong bases (or) the mixture of weak bases and their salts of strong acids. Buffers help to maintain a normal pH of the biological systems. When an acid (or) alkali has added the pH of the solution changes in …

The nature of the solution (acidic, alkaline (or) neutral) can be represented in terms of either hydrogen ion concentration (or) hydroxyl ion concentration. This naturally explains the pH concept. In 1909, Sorenson used a logarithmic scale for expressing the H+ concentration. This scale was called “pH”, Where “P” stands for …

What is a coupling reaction? Before going to discuss this, we need to know about Energy. Energy is the capacity to do work and appears in many different inter-convertible forms: light, heat, electrical, mechanical, and so on. Energy can be kinetic (‘active’) or potential (‘stored’). The water behind a dam …

Thermodynamics is the branch of physical chemistry that deals with energy changes and Biochemical thermodynamics (or biochemical energetics of bioenergetics as it is also called) is the field of biochemistry concerned with the energy transformation and use of energy by living cells (Energy transformation). The chemical reactions occurring in living beings (or biochemical reactions) …

Hydrophobic interactions in proteins Structure describe the relations between water and hydrophobes (low water-soluble molecules). Hydrophobes are nonpolar molecules and usually have a long chain of carbons that do not interact with water molecules. The mixing of fat and water is a good example of this particular interaction. The common …