In 1935, Engelhardt analysed the rate of ATP in red blood cells (globules rouges) as a function of the rate of oxygen. The experiments showed that the ATP increases with the quantity of O2. Contrarily to the yeast, the blood
Chapter 8 : Glucose catabolism – aerobic oxidation
This process is coupled to the cellular respiration, involves O2 and is way more effective than the anaerobic oxidation. Instead of 2 ATP, the aerobic oxidation generates 38 ATP by glucose. It can also oxidise fatty acids and the carbonate parts
Chapter 7 : Glucose catabolism
Its goal is to supply energy to the cell wherever it is needed. The glycolysis forms pyruvate from the glucose that can next be deteriorated anaerobically to form lactate or ethanol through fermentation. In 1870, Louis Pasteur discovered the functioning
Chapter 6 : nucleic acids
Nucleic acids are composed of monosaccharides connected by phosphoester liaisons and wearing a base. One monosaccharide and its base are called one nucleoside. One monosaccharide, its base and one phosphate are called a nucleotide. RNA and DNA are composed of
Chapter 5 : 3D structure of proteins
The structure of the protein is obtained during the formation of the protein. The structure of the protein is necessary for its function: some active sites are present on the proteins. Those sites are highly specific to one target substrate.
Chapter 4 : Primary structure of proteins
The primary structure of a protein is the succession, or sequence, of the AA. Proteins are made of one linear chain of amino acids. This linear chain takes a 3D structure (secondary and tertiary structures) because of the interactions between
Chapter 3 : Proteins and amino acids
The word protein comes from the Greek word proteos, which means first. Proteins are indeed one essential element of the life. They are well defined in composition, size and shape and each one has a very precise role: transport, defence,
Chapter 2 : Glucides
Glucides are essentially cyclic hydrates of carbon (CN(H2O)N) but can also wear N, S, P. The cycles are usually 5 or 6 atoms long and form macromolecules when cycles bind together. One example is the cellulose, which is the walls of
Chapter 1: Biochemistry – Introduction and lipids
Biochemistry is a field of the chemistry related to the living bodies, animal or vegetal. This field is far from the inorganic chemistry and a simple comparison can show it: the repartition of the molecules in the earth’s crust and