Human Immunodeficiency Virus(HIV)

Human Immunodeficiency virus or HIV is the causative agents of acquired immunodeficiency syndrome (AIDS). It attacks the immune system of the body and can lead to AIDS. HIV infects and kills the helper T cells, dendritic cells and macrophages. There is no effective treatment of AIDS but if you take proper medical care, HIV can … Read more

Syphilis: Causes, Types, Symptoms and Treatment

Syphilis is a sexually transmitted infection. It is the top list disease of the world.  This disease is mostly spread out through various sexual activities such as oral, anal sex and by kissing.  The outbreak of syphilis was first occurred in Italy in 1495-1495 during a French invasion. Hence, it is also known as the … Read more

Hepatitis: Types, Causes, Symptoms and Prevention

Hepatitis is actually the inflammatory condition of the liver. The word “hepatitis” is derived from the Greek word ‘hepar’ and Latin word ‘itis’. In this case, ‘hepar’ means liver and ‘itis’ means inflammation. It is generally caused by a viral infection but other possible causes are available including autoimmune hepatitis and it also occurs as … Read more

Economic Importance of Viruses

Virus is an infectious agent with microscopic size that needs living cells of plants, animals or bacteria to multiply. The name virus is derived from Latin word meaning “poison” or “slimy liquid”.  They are not animals, plants or bacteria and they can`t do metabolic process without a host cells. The body of virus contains nucleic … Read more

Economic Importance of Bacteria

image of Denitrifying Bacteria

Bacteria are single-celled microscopic organisms which can live in different types of environment and survive in extreme conditions. They contain high protective coating in their body, which enhances to live any severe conditions. Many bacteria possess flagella which help them to move around, but some have hair-like structures which help them live in hard surfaces … Read more

Fungus: Definition, Characteristics, Types and Its Economic Roles

image of Fungus

Fungi (singular fungus) are the eukaryotic organisms that belong to the Kingdom Fungi. They have no chlorophyll pigments and vascular tissues. The body consists of a single cell to branched filamentous hyphae that often produce specialized fruiting bodies. The special characteristic of fungi is that they grow rapidly and die soon. In nature, there are … Read more

Denitrifying Bacteria

image of Denitrifying Bacteria

Nitrogen is the necessary component of life, which is essential to all life-forms. The naturally available environmental nitrogen is inorganic, which convert into organic compounds like ammonia by the presence of nitrogen-fixing organisms. These natural nitrogenous products are taken up by plants and animals. The excess amounts of these products are removed in the form … Read more

Endotoxins Vs Exotoxins

image of Exotoxin vs endotoxin

Micro-organisms such as bacteria, fungi produce toxic substances that boost up the infection and diseases through damaging the host tissues and by troubling the immune system. The most potent and known natural bacterial toxin is Botulinum neurotoxin which has essential uses in research and medical science. At present, toxins are used as tools in cellular … Read more