Liver function tests are biochemical, histological, and sonological tests used to help diagnose and monitor liver disease. One must understand various functions of the liver to understand the different liver function tests. Functions of the liver The liver is an essential and most important organ in our body. The largest gland in our body…
Lipoprotein metabolism is the transport of dietary and endogenously derived lipids across different tissues or organs mainly through circulation. Since lipids like triacylglycerol, cholesterol, fatty acids are not soluble in water, their transportation through blood is very difficult. This problem solved by complexing with proteins called apolipoproteins or apoproteins. Together with apoproteins, these lipids are packaged in the form of lipoproteins namely; chylomicron, very low-density lipoprotein [VLDL], low-density lipoprotein [LDL] and high-density lipoprotein [HDL].
Fatty acid oxidation is utilization or catabolism of fatty acids for the purpose of energy in the form of ATP. There are various types of fatty acid oxidation but most important type is the beta oxidation of fatty acids which takes place in the mitochondrial matrix. Please watch the below embedded video in order to understand an overview or introduction of utilization of fatty acids.
Km and Vmax: Michaelis-Menten equation Km and Vmax: Michaelis-Menten equation. In this video, I have explained enzyme kinetics by taking varying concentrations of the substrate with constant enzyme concentration. Effect of varying concentrations of the substrate on the enzyme-catalyzed reaction in terms of rate of the reaction or velocity. By watching this video, you…
How does enzyme work? Enzymes are biomolecules and they speed up reactions by decreasing the rate of a chemical reaction. Enzymes will not alter reaction equilibrium but decrease rate of the chemical reaction by decreasing the free energy of activation. To know more please watch the below-embedded video. Mechanism of enzyme action There are…
The synthesis of DNA is called replication. DNA replication is the process by which DNA makes a copy of itself during cell division. Replication starts at a particular DNA sequence called an origin of replication or ORI. In prokaryotic cells, the origin is at one site. In eukaryotic cells, the origin is at many…
Ketogenesis Ketogenesis is the synthesis of ketone bodies. Three are 3 ketone bodies namely, acetoacetate, β-hydroxybutyrate, and acetone. Normally in our body, a very less amount of ketone bodies are present in our blood as the starting material for ketogenesis is acetyl-CoA which enters the TCA cycle. When there is the excess formation of…
Sources and RDA Factors affecting iron absorption Mechanism of iron absorption
RNA means ribonucleic acids are polymers of ribonucleotides. Unlike DNA, RNA contains single strand and ribonucleotides are joined by 3’, 5’-phosphodiester bonds. Major bases present in RNA are adenine [A], guanine[G], cytosine [C] and uracil [U]. There can be the presence of unusual or modified bases or ribonucleotides like ribothymidine [T], dihydrouridine [D] and…
The word vitamin is derived from 2 words that is Vita means vital to the body and Amine that is the initial vitamins discovered are amine in nature, so scientist gave name vitamine but later they came to know that all vitamins are not amines, therefore they removed the letter ‘E’ from vitamine and…