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Bacillus cereus – Habitat, Morphology, Pathogenicity, Virulence Factors

An Overview of Bacillus cereus

Domain: Bacteria Phylum: “Firmicutes” Class: Bacilli Order: Bacillales Family: Bacillaceae Genus: Bacillus Species: B. cereus Definition of Bacillus cereus Bacillus cereus is a gram-positive, rod-shaped bacterium that produces toxins leading to foodborne illnesses. It can cause two main types of gastrointestinal disorders: emetic (vomiting) syndrome and diarrheal syndrome. This bacterium is commonly found in soil … Read more

Microvilli – Definition, Structure, Functions and Diagram

Microvilli - Definition, Structure, Functions and Diagram

Microvilli are tiny, finger-like projections found on the surface of epithelial cells throughout the body, particularly in the small intestine. These structures significantly increase the surface area of the cells, enhancing their ability to absorb nutrients and other substances. The primary functions of microvilli include facilitating nutrient absorption, aiding in the process of fertilization, supporting … Read more

Sterilization – Physical and Chemical methods

Sterilization - Physical and Chemical methods

What is Sterilization? Important Definitions Methods of Sterilization A. Physical Methods of Sterilization Method Description Key Agents/Processes Applications Sunlight Utilizes ultraviolet rays for germicidal effects. Reduces microorganisms in natural bodies of water. Ultraviolet Rays Water sterilization Heat Involves dry heat and moist heat to kill microorganisms through protein denaturation and coagulation. Dry Heat, Moist Heat … Read more

Physical Methods of Sterilization

Physical Methods of Sterilization

What is Sterilization? Physical methods of sterilization Physical methods of sterilization involves the control of microbial growth by using Sunlight, Heat, Filtration, Radiation, etc. Physical methods of sterilization include the following: A. Heat Sterilization Heat sterilization is a fundamental technique in microbiology and medical sterilization, notable for its efficiency in destroying microorganisms through thermal means. … Read more

Thallus Organisation in Algae – Types, Structure, Examples

Overview of cycle between autotrophs and heterotrophs.

What is Algae? What is the thallus organization of algae? Types of thallus organization in Algae The organization of the algal thallus varies considerably across different species. The thallus, or plant body, can be categorized into several distinct types based on its structural complexity and organization. The algal thallus organization can be classified in these … Read more

Methods For Maintenance and Preservation of Pure Cultures

Methods For Maintenance and Preservation of Pure Cultures

Discover essential techniques for the Maintenance and Preservation of Pure Cultures, focusing on bacterial and fungal preservation methods. This comprehensive guide covers best practices to ensure the longevity and purity of microbial cultures, making it an invaluable resource for researchers and laboratory professionals. The following points highlight the top 7 methods used for maintenance and … Read more

Archaea – Habitat, Structure, Characteristics, Importance, Examples

Archaea - Definition, Habitat, Characteristics, Importance, Examples

What is Archaea? Definition of Archaea Archaea are a domain of single-celled prokaryotic organisms distinct from bacteria, characterized by unique genetic, metabolic, and cellular features, and often found in extreme environments. Habitat of Archaea The habitat of Archaea is remarkably diverse, spanning from some of the most extreme environments on Earth to more common and … Read more

Contribution of Robert Koch and Koch’s Postulates

Robert Koch and Koch’s Postulates

In this article we will learn about the contribution of Robert Koch in Microbiology and Koch’s Postulates. All this informations are only for students. Who was Robert Koch? Contribution of Robert Koch Robert Koch made pivotal contributions to the field of microbiology, which significantly advanced our understanding of infectious diseases. His work established foundational principles … Read more

Contribution of Louis Pasteur in Microbiology.

Contribution of Louis Pasteur

Who Was Louis Pasteur? Contribution of Louis Pasteur Louis Pasteur made several groundbreaking contributions to science, particularly in microbiology and chemistry. Here is a detailed overview of his major contributions: The Swan Necked Flask experiment of  Louis Pasteur Louis Pasteur’s experiment with the swan-necked flask was a landmark in disproving the theory of spontaneous generation … Read more

Contributions of Antonie van Leeuwenhoek

Contribution of Antonie van Leeuwenhoek

Who was Antonie van Leeuwenhoek? Anton Van Leeuwenhoek and Cell Theory Contribution of Antonie van Leeuwenhoek Antonie van Leeuwenhoek, a Dutch scientist and businessman, made several pioneering contributions to the field of microbiology, fundamentally altering our understanding of the microscopic world. His meticulous observations and discoveries laid the foundation for modern biology and greatly influenced … Read more

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