Author name: Sayuja Koirala

Biochemical Test of Campylobacter fetus subsp. fetus

Biochemical Test of Campylobacter fetus subsp. fetus

Biology /

Biochemical tests are used to identify Campylobacter fetus subsp. fetus by analyzing its metabolic properties. These tests can help differentiate it from other Campylobacter species and subspecies. However, it’s important to note that biochemical tests for C. fetus subsp. fetus have limitations and should ideally be used in conjunction with other methods for definitive identification. […]

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Biochemical Test of Alcaligenes faecalis subsp. faecalis

Biochemical Test of Alcaligenes faecalis subsp. faecalis

Microscopy /

Gram-negative, aerobic, non-fermentative bacteria that is a member of the Alcaligenaceae family is called Alcaligenes faecalis. It is frequently found in soil, water, and ecosystems that are related to both people and animals, such as the digestive system. This particular bacteria is well-known for having the capacity to emit a peculiar fruity smell. Although A.

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Bile Esculin Agar- Composition, Principle, Preparation, Results, Uses

Bile Esculin Agar- Composition, Principle, Preparation, Results, Uses

Biology /

A selective and differential culture medium called Bile Esculin Agar (BEA) is mainly utilized for the isolation and tentative identification of group D streptococci and enterococci. This medium takes use of the bacteria’s capacity to hydrolyze esculin when bile salts are present. A dark brown or black precipitate is formed when ferric citrate in the

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BCYE Agar- Composition, Principle, Preparation, Results, Uses

BCYE Agar- Composition, Principle, Preparation, Results, Uses

Biology /

BCYE Agar species are isolated and cultivated using agar, a specific culture medium. It can also stimulate the development of other picky organisms. A form of selective growth medium that is used to cultivate or grow specific bacteria, especially Legionella pneumophila, a Gram-negative bacterium. Buffered Charcoal Yeast Extract, or BCYE Legionella species are isolated and

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Bacterial growth curve and its significance

Bacterial growth curve and its significance

Biology /

The bacterial growth curve represents the growth of a bacterial population over time in a closed environment (batch culture). It is typically divided into four distinct phases: lag phase, log (exponential) phase, stationary phase, and death (decline) phase. Each phase has specific characteristics and biological significance. The basic process of bacterial development has significant ramifications

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Autoclave: Parts, Principle, Procedure, Types, Uses

Autoclave: Parts, Principle, Procedure, Types, Uses

Biology /

An autoclave is a machine that uses pressured steam for a predetermined amount of time to sanitize materials and equipment. It is utilized in industrial, medicinal, and laboratory environments where it kills bacteria and spores by operating at high temperatures and pressures. All microbiological life, including bacteria, viruses, fungi, and spores, is efficiently eliminated throughout

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Are Viruses Living or Non-Living Or a Borderline

Are Viruses Living or Non-Living? Or a Borderline

Microscopy /

Viruses are considered borderline between Living or Non-living entities due to their dual nature; certain characteristics indicate that viruses are living or non-living. The virus is a tiny infectious agent that uses the process of ‘infection’ to copy its genetic material. Robert Koch (1843-1910) created the term “virus“. They are the smallest known forms of

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AP Biology Syllabus and Course Description

AP Biology Syllabus and Course Description (2020)

Biology /

AP Biology encompasses a wide array of subjects, including cell structure and function, molecular biology, genetics, evolution, ecology, and physiology. It delves into both the unity and diversity of life on Earth, emphasizing critical thinking and inquiry-based learning. AP Biology Course Overview Course Content The AP Biology course delves into fundamental biological concepts such as

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