What is Phototropism? Definition of Phototropism Phototropism is the directional growth of an organism, especially plants, in response to a light stimulus. Phototropism Lecture Video Phototropism Discovery – Early Experiments The phenomenon of phototropism, where plants grow directionally in response to light, has been a subject of scientific intrigue for centuries. Pioneering experiments by eminent … Read more
What is Photoautotroph? Definition of Photoautotroph A photoautotroph is an organism that synthesizes its own organic compounds using light energy and inorganic carbon, primarily through the process of photosynthesis. Examples include plants, algae, and certain bacteria. How does Photoautotrophs Get Their Nutrition? Photoautotrophs obtain their nutrition through a process called photosynthesis. Here’s a detailed explanation … Read more
What is Fragmentation? Definition of Fragmentation Fragmentation is a form of asexual reproduction in which an organism or part of it breaks into smaller pieces, each capable of developing into a fully mature individual. General Steps of Fragmentation Fragmentation is a pivotal biological process characterized by its systematic progression through distinct stages. This method of … Read more
Many plants can reproduce genetically identical offshoots or clones of themselves through asexual reproduction. These offshoots then become independent plants. This is known as vegetative reproduction or vegetative propagation. Fragmentation is one way that vegetative propagation can occur. This means that a part of a plant can be regrown into a new plant. There are … Read more
Definition of Prebiotics Types of Prebiotics There are numerous varieties of prebiotics. The majority of them are a subset of carbohydrate groups and are largely oligosaccharide carbohydrates (OSCs) (OSCs). 1. Fructans 2. Galacto-Oligosaccharides 3. Starch and Glucose-Derived Oligosaccharides 4. Other Oligosaccharides 5. Non-Carbohydrate Oligosaccharides Criteria for Eligibility as Prebiotic To qualify as prebiotic, food items … Read more
Probiotics Definition Probiotics are living microorganisms that mitigate the negative effects of antibiotics by restoring the body’s natural homeostasis. Probiotics are identified by their genus, species, and a strain-specific identifying name (e.g. Lactobacillus rhamnosus GG) and are available in a range of formulations, including yoghurt drinks, pills, and nutritional supplements. Probiotic Bacteria The majority of … Read more
Starter Culture Definition A starter culture is a microbial preparation containing a very high number of cells (such as 1012 g-1) of one or more microbe species that is given to raw material to produce fermented food by accelerating and directing fermentation. Functions of Starter Cultures The fundamental function of lactic starters is to convert … Read more
As their name suggests, microorganisms are minute organisms with the potential to adapt to their environment; for instance, commensals can become pathogenic in certain altered environments. The adaptability of microbes to certain treatments or medications remains a challenge for nurses and other medical professionals. Microbiology influences the lives of a nurse working in a medical … Read more
What is Kirby Bauer Disk Diffusion test? The Kirby-Bauer disk diffusion test is a laboratory method used to determine the effectiveness of antibiotics against bacterial strains. The test is named after its inventors, Drs. Paul Kirby and Robert Bauer, who developed it in the 1960s. In the Kirby-Bauer test, a bacterial culture is spread evenly … Read more
Testing of Disinfectants/ Evaluation of disinfectants definition. Different methods for Testing of Disinfectants There are present different tests which can be used to test the efficiency of disinfectants such as; 1. Phenol coefficient test Methods of Phenol coefficient test There are two distinct methods of Phenol coefficient test, such as; A. Rideal Walker method for … Read more
