Sourav Pan is the founder and sole author of Biology Notes Online. He holds a Bachelor of Science (B.Sc.) degree and an M.Sc. in Microbiology from the University of Calcutta. He creates educational resources covering microbiology, immunology, biotechnology, genetics, cell biology, botany, zoology, and other life-science subjects.
His goal is to make complex biological concepts easier to understand through well-structured, student-friendly articles based on academic textbooks, peer-reviewed research, and authoritative scientific sources. In addition to writing new content, he regularly reviews and updates articles to improve their accuracy, clarity, and educational value.
The Widal test is an agglutination test that determines any antibodies present in the patient’s serum that are generated against the causal agents of the enteric febrile illness (Salmonella Typhi, and Salmonella paratyphi B, A as well as C).
Evacuated Tubes that are used for blood collection for different laboratory tests are made up of tubes in variable sizes, and color-coded tops to indicate tube contents. The majority of blood collection tubes contain an ingredient that either speeds up the blood’s clotting (clot activator) or stops blood from becoming clot-free (anticoagulant). The following list lists the most frequently utilized blood collection tubes, along with their additives, and their uses in lab:
Erythrocyte Sedimentation Rate (ESR) can be described as a commonly used test used to detect non-specific signs of inflammation result of infection cancers, or certain autoimmune disorders. It is defined as the rate that Red Blood Cells (RBCs) accumulate over an hour.
The Minimum Inhibitory Concentration (M.I.C.) of antimicrobial drugs against bacteria and the detection of resistance mechanisms can be found with the help of a MIC Test Strip, a quantitative assay.
The Lactophenol Cotton Blue solution stains the chitinous cell wall of the fungal cell, which makes them different from the surrounding environments and can easily distinguishable. LCB is made of three main components such as Phenol, Lactic acid, and Cotton blue.
Chlamydomonas are single-celled green flagellates while Volvox is a part of colonial phytoflagellate that develops a hollow spheroid with several thousand cells enclosed in its mucilaginous wall.
can be described as an test of immunoprecipitation (immunodiffusion) test that determines what specific strain of Corynebacterium Diphtheriae is toxic.
The microbial content of the outer atmosphere is changing with the season, it contains various pollen, algae, mosses, grains, spores of fungi, ferns, bacteria, and viruses.