Phenylalanine Deaminase Test – Procedure, Principle and Uses

Phenylalanine Deaminase Test is a procedure used to find out the capability of Proteus species to deaminate phenylalanine to phenylpyruvic acid with the aid of an enzyme; a vital and useful reaction in distinguishing the members of Enterobacteriaceae family. Specifically, it is used to differentiate Proteus and Providencia organisms from Enterobacteriaceae family. Using the Phenylalanine […]

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Difference between Serum and Plasma

The human blood consists of different components. Two of them is plasma and serum. These two terms are used frequently but play different roles in the body. Serum and plasma are the liquid part of the blood. These components remain when the cells’ components are taken out. Serum is the liquid component of the blood […]

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Motility Tests for Bacteria – Principles, Procedures and Results

The motility of bacteria is used to differentiate and classify them. There are many different ways to check for bacteria motility such as the usual microscopic visualization in conjunction with media results and biochemical tests. A bacterium moves using flagella while some move using axial filaments. Bacteria are classified into two: motile and non-motile. A […]

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Difference between T Cells and B Cells

The body is made up of different cells and each type of cell has important functions. In this article, we are going to discuss T cell and B cells; their roles and differences.   Picture 1: T cells are a component of lymphocytes. Image Source: wikimedia.org   Picture 2: T cells helps fight off cancer cells. […]

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Dry Heat Sterilization – Principle and Uses

What is dry heat sterilization? It is the process of killing bacterial spores and microorganisms using a high temperature. This type of sterilization method is used on items that cannot get wet such as powders, oils, and the likes. Picture 1: An example of a dry heat sterilizer. Image Source: used-autoclave-s.com   Picture 2: A huge […]

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Difference Between Artery and Vein

Arteries and veins supply blood to various parts of the body. They are called blood vessels because they distribute blood to various body parts. These two structures work in synergy but they differ in so many ways. Let us dig deeper into their differences. Arteries Picture 1: Arteries carry oxygenated blood from the heart to […]

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