Protozoan Diseases

PROTOZOAN DISEASES • Protozoans are diverse group of eukaryotic, unicellular organisms. • Human diseases caused by protozoa are relatively few, but are individually of devastating consequences. Amoebiasis or Amoebic dysentery • Amoebiasis is a protozoan infestation of upper part of large intestine which is caused by monogenetic protozoan (having one host i.e., man) known as … Read more Protozoan Diseases

CBSE Board 2015 Microbiology Practice Questions

1. Which antibiotic was extensively used to treat American soldiers wounded in World War II? 2. Name two growth regulators commonly used in plant tissue culture. 3. Give the scientific name of the plant from which cocaine is obtained. 4. Write down the following terms in expanded form (i) ELISA (ii) MALT 5. Give one … Read more CBSE Board 2015 Microbiology Practice Questions

Bacteria

In 1676 Anton Van Leeuwenhoek discovered the microbial world by his simple microscope. It was only after the invention of compound microscope by Hooke in 1820, that bacteria came to lime light. These very minute creatures were designated as “small microscopic species” or “ Infusorial animalcules”. Louis pasteur(1822-95 ) made a detailed study of bacteria … Read more Bacteria

The Main Themes of Microbiology

Medical Microbiology This branch deals with microbes that cause diseases in humans and animals. Researchers examine factors that make the microbes virulent and mechanisms for inhibiting them.   Public Health Microbiology and Epidemiology These branches monitor and control the spread of diseases in communities. Institutions involved in this concern are the U.S. Public Health Service … Read more The Main Themes of Microbiology

Plasmodium

The parasite responsible for Malaria – Plasmodium Members of the genus Plasmodium are collectively known as malarial parasites. They cause a febrile disease called malaria. Malaria as achill and fever disease is known to mankind for a long time. Eradication of malaria is an important problem in public health. For a long time it was … Read more Plasmodium

Economic importance of Fungi

Fungi are useful to mankind in many ways. These organisms play an important role in medicine, agriculture and industry. They have harmful effects also. Useful aspects of fungi The antibiotic Penicillin was discovered in 1928 by Alexander Fleming of Britain from the fungus Penicillium notatum, which in 1940s emerged as a ‘wonder drug’ for the … Read more Economic importance of Fungi

Ascocarps

The ascomycetes or sac fungi are identified by the presence of spores called ascospores, which are enclosed in a sac like structure. These ascocarps are of three types: 1.Cleistothecium: These are closed and spherical ascocarps. eg. Eurotium 2. Perithecium: These are flask shaped ascocarps. eg. Neurospora. 3. Apothecium : These are cup shaped ascocarps. eg.Peziza.

Classification of Fungi

Traditionally fungi have been regarded as plants. At one time fungi were given the status of a class and together with the class algae formed the division Thallophyta of the Plant Kingdom. The thallophyta were those plants whose bodies could be described as thalli. A thallus is a body, often flat, which is not differentiated … Read more Classification of Fungi

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