Definition of Amphibians A type of cold-blooded animals that can live in aquatic as well as terrestrial environments are Amphibians. In Greek, the word “amphibios” means to live twice, hence the phrase “amphibian.” Although several species within the category of amphibians may be stable land residents, others may be permanent aquatic dwellers, the title represents … Read more
Eosin Methylene Blue (EMB) Agar Eosin Methylene Blue (EMB) agar is a microbiological selective stain that limits Gram-positive bacteria’s growth while simultaneously serving as a colour indication for identifying organisms which help ferment lactose (e.g., E. coli) even those who don’t (e.g., E. coli) (e.g., Salmonella, Shigella). EMB agar was invented by Holt-Harris and Teague, … Read more
Definition of Microfilaments Microfilaments, often referred as actin filaments, are components of a cell’s cytoskeleton. It is made up of two parallel polymers of G-actin that are coiled around each other in a helical configuration and have a diameter of 6 to 8 nanometers each. These filaments, which are found in all eukaryotic cells, have … Read more
Amino Acids Introduction Amino acids are chemically as well as biochemically distinct from other natural chemicals because of their ampholytic capabilities. In a carboxylic acid, an amino group is located in the proximity to the carboxyl group, and it has a specific stereochemistry and structure. From 20 amino acids, proteins are biosynthesized, using a rigorous … Read more
Null Hypothesis Definition The null hypothesis assumes that there is really no connection between the two events under examination or among two different groups A hypothesis is a statement that hasn’t been supported by adequate proof. As a result, null hypothesis is the notion that a researcher is attempting to refute a theory. A hypothesis … Read more
Definition of Cytokinesis Cytokinesis is a type of physical cellular division which happens following mitosis. Cytokinesis is the actual splitting of the cell cytoplasm, cell membrane, as well as cell organelles to form two different cells when the cell cycle has come to a close in mitosis as well as meiosis. Cytokinesis begins in the … Read more
Definition of Autotroph An autotroph is a group of organisms that can make their own food from a variety of sources, including sunlight, air, water, and other chemicals. The word autotroph is made up of the words auto (meaning self) and troph (meaning sustenance). Autotrophs, on the other hand, are capable of making their own … Read more
Definition of Epithelial Tissue One of the four types of tissues (muscular, epithelial, nervous, and connective) found inside animals is epithelial tissue. It is made up of tightly aggregated polyhedral cells which make cellular sheets which make a lining in the inside of vacant organs as well as cover up the body surface. An epithelial … Read more
Definition of Endocytosis Endocytosis is a cellular mechanism that allows a cell to internalise substances from its surroundings, such as proteins, electrolytes, fluids, microorganisms, and some macromolecules. These compounds are broken down into smaller elements by a variety of operations, either for use by the cell or for waste. The immune system’s white blood cells … Read more
Definition of Mitosis Mitosis is a type of cell division that occurs in the body. Mitosis is a cell division process in which one cell divides into two genetically identical daughter cells, resulting in cell reproduction and duplication. The number of chromosomes is preserved in both the daughter cells. Mitosis is a short period of … Read more