Prashant Dahal 
Streak literally means “a long, thin line”: and the streak plate method is a microbiological culture technique where a sample is spread in a petri dish in the form of … Read more
Sarcomeres are the basic contractile units of striated muscle cells. A sarcomere is a highly organized structure made up of thick and thin protein filaments; mainly of actin and myosin … Read more
Signs and symbols are figures representing specific instructions about what to do and what not to do or representing some specific material or situation ahead. They alert us about some … Read more
Gram staining is a differential bacterial staining technique used to differentiate bacteria into Gram Positive and Gram Negative types according to their cell wall composition. It is the most widely … Read more
Hemoglobin is a complex iron-containing protein found in erythrocytes (red blood cells) of most vertebrates that plays a vital role in carrying oxygen and carbon dioxide within the blood. It … Read more
Benedict’s Test is a chemical analytical method used for the detection of reducing sugar in a solution. Benedict’s Test is a qualitative test often used for the differentiation of carbohydrates … Read more
PYR test (L-Pyrrolidonyl-β-naphthylamide test) is a biochemical test used to detect the ability of bacteria to produce pyrrolidonyl aminopeptidase enzyme using L-Pyrrolidonyl-β-naphthylamide (PYR) as substrate. It was first reported in … Read more
Arteries are the elastic, muscular tubes (blood vessels) responsible for carrying the blood away from the heart and distributing it to several other organs and tissues. Simply, the blood vessels … Read more
Electrocardiogram, commonly known as ECG or EKG is a medical test report indicating the heart’s electrical activity and rhythm during repeated cardiac cycles. It is printed on grid paper called … Read more
Salt Tolerance Test is the biochemical test used to determine the ability of bacteria to tolerate a high salt concentration (of 6.5%). Different genera of bacteria have different requirements for … Read more
