In this article we will discuss about the process of metabolism of glycerolipids, explained with the help of suitable diagrams. Synthesis and Degradation of Glycerophospholipids: The common precursor of all phosphatides is phosphatidic acid. There are two pathways for carrying out the biosynthesis of this lipid. In the first, glyceraldehyde-3-phosphate, which is one of the intermediates of glycolysis (see fig. [...]
In this article we will discuss about the process of oxidation of fatty acids. Oxidation of Even-Carbon, Saturated Straight Chained Fatty Acids: A. Activation of Fatty Acids: Before they are oxidized, fatty acids must be activated. This activation requires energy (supplied by ATP) and takes place in 2 steps, as may be seen in figure 5-10. In a first step, [...]
Although substantial progress was made during the last decade, all replication mechanisms in eucaryotes are not yet understood because: (a) Replication is an event which occurs much more rarely than in bacteria. Initiation of replication is therefore highly controlled; this complicates the understanding of this process; (b) The DNA is not naked, in the cell, but in the form of [...]