We now want to tell in detail something that was too important for our immune system. Our ability to defend ourselves against infection by pathogens (disease-causing organisms). We have seen that some people experience few or no symptoms when exposed to certain infectious diseases. Even though a person may be …

Enzymes are protein molecules that can be defined as biological catalysts. A catalyst is, “A molecule which speeds up a chemical reaction but remains unchanged at the end of the reaction“.Virtually every metabolic reaction which takes place within a living organism is catalyzed by an enzyme and enzymes are therefore …

It is estimated that in the present world, the number of plant species is as many as five million. Among them about 391,000 species of vascular plants-are currently known to science of which nearly 369,000 species (94%) are phanerogamic or flowering plants as other 6% is consisted with cryptogamic or …