Avatar for Sourav Pan

Sourav Pan

Founder of Biology Notes Online, Biology & Microbiology Educator, M.Sc. in Microbiology
Expertise
Microbiology, Immunology, Cell Biology, Molecular Biology, Genetics, Biotechnology, Biochemistry, Botany, Zoology
Education
University of Calcutta
Profile Last Updated: August 10, 2026

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.

Acute Disease vs Chronic Disease – Key Differences

Differences Between Acute disease and Chronic Disease

The duration of time that is for acute diseases is dependent according to the nature of the disease and its context however it is more concise in comparison to chronic illnesses. The term “acute” can also be used to refer to conditions where the onset of symptoms is sudden and happens quickly. In the case of severe disease is usually fulminant when it’s not always true for acute rhinitis. It is commonly associated with the common cold.

Agglutination vs Precipitation – Key Differences

Differences Between Agglutination and Precipitation

Agglutination reactions help fragment test antigens, which are typically coupled to the carrier. The carrier could be made up of (such as charcoal or latex particles) or biological (such as red blood cells). The process of agglutination involving Red blood cells can be known as Hemagglutination. The process that involves the white blood cells can be referred to as leukoagglutination.

Primary vs Secondary Metabolites – Key Differences

Difference Between Primary and Secondary Metabolites

Primary metabolites are substances which are directly involved in the metabolic pathways of an organism , which are necessary to its development, growth and reproduction. They are a part of the physiological processes that occur within the organism. Primary metabolites are generated in the body during the growth phase due to the mechanism of growth. The phase of growth which is associated with the creation of primary metabolites is referred to as ‘trophophase’..