Biology

Biology is the branch of science that primarily deals with the structure, function, growth, evolution, and distribution of organisms. It’s a methodological study of life and living things.

Biology is the scientific study of life. It spans multiple levels, from biomolecules and cells to organisms and populations12. All living things share common biological phenomena, such as reproduction, cell division, and the transmission of genetic material.

Buffer, buffering capacity, properties of good buffer and role of buffer in vitro and in vivo

Buffer, buffering capacity, properties of good buffer and role of buffer in vitro and in vivo

Buffer A buffer is a solution that helps keep the pH stable when small amounts of acids or bases are added. Buffers are essential in both biological systems and chemical reactions, helping to maintain a consistent pH in environments like the human body, lab experiments, and cell cultures. Typically, buffers are made from a weak […]

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Amies transport medium: composition, preparation and uses

Amies transport medium: composition, preparation and uses

Amies transport medium is a crucial tool in healthcare for preserving and transporting clinical specimens, especially swabs, to laboratories for microbial testing. It ensures that microorganisms like bacteria remain alive during transit, enabling accurate diagnosis. Developed by J.R. Amies in 1967, this medium enhanced previous versions by offering better preservation for delicate pathogens. In this

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ESBL (Extended Spectrum beta-Lactamases) and types

ESBL (Extended Spectrum beta-Lactamases) and types

Antibiotic resistance is one of the greatest challenges modern medicine faces, and ESBL -producing bacteria are at the forefront of this problem. Extended Spectrum Beta-Lactamases are enzymes produced by some bacteria that allow them to resist the effects of commonly used antibiotics, specifically penicillins and cephalosporins. What are Beta-Lactamases? To understand Extended Spectrum beta-Lactamases, let’s

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Model organism Bacteria as model organism

Model organism: Bacteria as model organism

Bacteria are tiny, single-celled organisms that live almost everywhere, playing crucial roles in everything from digestion and health to causing infections and breaking down waste. Model organisms are essential tools in scientific research because they provide insights into biological processes that are applicable to other species, including humans. Among the many model organisms, bacteria play

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Penicillin production commercially by fermentation biotechnologypencilin

Penicillin production commercially by fermentation biotechnologypencilin

One of the most commonly used antibiotics worldwide is penicillin, which was developed in 1928 by Alexander Fleming. It fights bacterial infections and has proven a lifesaver. Penicillins are a subclass of antibiotics called beta-lactam antibiotics .Fermentation biotechnology is used to generate it on a large scale. Large fermentation tanks are used in the commercial penicillin

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Cary-Blair transport medium composition, preparation and uses

Cary-Blair transport medium: composition, preparation and uses

Cary-Blair transport medium is a specialized solution used to preserve and transport stool specimens, particularly for the isolation of enteric (intestinal) pathogens such as bacteria (e.g., Salmonella, Shigella, Vibrio). Its purpose is to maintain the viability of these pathogens during transport to the laboratory for further analysis.This medium is particularly useful for bacteria like Shigella,

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Cetrimide agar composition, preparation and uses

Cetrimide agar: composition, preparation and uses

What is Cetrimide agar? Pseudomonas aeruginosa is a form of bacteria that can cause infections, particularly in immunocompromised patients. Cetrimide agar is a sort of selective culture medium that is predominantly utilized for its isolation. Pseudomonas aeruginosa grows more readily on this agar medium whereas other bacteria’s growth is inhibited. Composition of Cetrimide Agar Pseudomonas

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Kligler iron agar (KIA) composition, preparation, uses and interpretation of result

Kligler iron agar (KIA): composition, preparation, uses and interpretation of result

Kligler Iron Agar (KIA) is a differential medium generally used in medical microbiology laboratory mainly for the differentiation of Gram-negative enteric bacteria classically belonging to Enterobacteriaceae, comprised of rod-shaped bacteria with peritrichous flagella. It is used to divide bacteria according to their ability to ferment sugars and produce H₂S. KIA is most useful in differentiating

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