We will first consider the effects of the variations of two physical factors, temperature and pH. We will then examine certain chemical agents (or effectors) which can modify the kinetics of enzymatic reactions and are either activators or inhibitors. 1. Effect of Temperature: The study of the initial velocity of an enzymatic reaction as a function of temperature reveals two [...]
A catalyst — whether chemical or biological — acts by increasing the velocity of reactions. We will now examine the kinetics of enzymatic reactions. The velocity of an enzymatic reaction is generally followed up by measuring the quantity of substrate transformed per unit time; one can also record the quantity of the product (or one of the products) formed by [...]
In this article we will discuss about the primary structure of peptides and proteins. Peptides and proteins consist of chains of amino acids linked by peptide bonds. We observe a structure analogy with the biuret molecule, formed by the condensation of 2 urea molecules (as indicated by its name) with elimination of one molecule of NH3(H2N—CO — NH-CO —NH2) and [...]