Cultivation of virus
Cultivation of virus Virus lacks its independent metabolism and they can only replicates inside host cell, so viruses cannot be cultured in non-living medium as […]
Month: September 2017
Classification of virus
Classification of virus A] Classification on the basis of nucleic acid B] Classification on the basis of structure or symmetry C] Classification on the basis […]
Properties of virus
Properties of virus Some general properties of virus are; 1. Size: The size of virus ranges from (20-300) nm in diameter. Parvovirus is the smallest […]
Virus: Structure and Symmetry
Virus: Structure and Symmetry Virus are very small infectious agents with size ranging from 20-300nm in diameter. Viruses are non-cellular entities so they are also […]
Pulmonary air volume and capacities
Pulmonary air volume and capacities In normal quiet breathing there are about 15 complete respiratory cycles per minute. The amount of air exchanged during breathing […]
Bohr effect- Oxygen dissociation curve and effects of CO2
Oxygen dissociation curve The effect of carbon dioxide and acidity favor the formation of Oxyhaemoglobin at low concentration of CO2 and H+ ion and causes […]
Chloride shift/Hamburger phenomenon
Chloride shift/Hamburger phenomenon The greater proportion (70%) of carbon dioxide is transported in the form of bicarbonates. The CO2 reacted with the water of the […]
Acid-Fast staining (Ziehl-Neelsen technique): principle, requirements and procedure
Acid-Fast staining (Ziehl-Neelsen technique): Principle: Acid fast staining is a differential staining technique which differentiate acid fast and non-acid fast bacteria. Mycobacterium species contains large […]
Mechanism of respiration in Human
Entire physiology of respiration involves following steps Breathing or pulmonary ventilation External respiration Transport of O2 to tissue Internal respiration Transport of CO2 from tissue […]
Gram staining technique
Gram staining technique Introduction Staining techniques are of different types, such as simple staining, negative staining and differential staining. Gram staining is an example of […]