Branches of Biology
The Pseudostratified Columnar Epithelium The pseudostratified columnar epithelium is tissues made up of a single layer of cells that appear to be made up of multiple layers, especially when viewed in cross-section. The nuclei of these epithelial cells are found at different levels, giving the illusion of being stratified. However, this tissue is made up … Read more
Transitional Epithelium Definition Transitional Epithelium DefinitionTransitional epithelium is a layered tissue made up of several layers of cells, whereby the cells that make up the tissue can change their shape depending on the extent of the organ. When the organ is filled with fluid, the cells in the top layer of this epithelium can stretch … Read more
Pyloric sphincter: Definition Location, function, Disorders Pyloric sphincter Pyloric sphincter: Definition Location, function, DisordersThe pyloric sphincter is a small piece of intestinal smooth muscle that acts as a valve and controls the flow of partially digested food from the stomach to the duodenum. The opening and closing of the sphincter are controlled by peristaltic waves … Read more
Define cellulose Define Cellulose is an organic polysaccharide that consists of a straight chain of hundreds of β-linked D-glucose units. Cellulose is the most abundant extracellular structural polysaccharide or organic polymer of all biomolecules in the biosphere. Cellulose is present in all land plants, but without meat, eggs, fish, and milk. However, it is not metabolized … Read more
Define Agrobacterium Define Agrobacterium is a phytopathogen that infects plants through sores, causes crown gall disease, and remains one of the most popular plants transformation tools in agriculture to this day. Agrobacterium tumefaciens is the soil pathogen that uses its type IV bacterial secretion system to transfer its transferred (T) -DNA to host cells. The … Read more
What does Genomics mean? The genome refers to the complete set of genes or genetic material present in a cell or organism, while genomics is the study of genomes. Genomic studies are characterized by the simultaneous analysis of large numbers of genes using automated data collection tools. Genomics is a discipline in genetics that uses … Read more
What is Parathyroid Gland? What is Parathyroid Gland? The parathyroid is a type of endocrine gland found in the upper and lower poles of the thyroid. There are four parathyroid glands distributed as two glands on either side of the thorax. The number of parathyroid glands in humans can vary between people. Up to eight … Read more
What are Mast Cells? What are Mast Cells? Mast cells are cells of the hematopoietic lineage immune system that remain widespread in vascularized tissues throughout the body. In contrast to other immune cells, mast cells do not remain in the blood, but rather remain located throughout the body in the mucous membrane and epithelial tissue. … Read more
What are Platelets? What are Platelets? Platelets, or thrombocytes, are nucleated cells that come from the megakaryocyte cells in the bone marrow and are not only a key player in maintaining hemostasis but are also involved in the development of non-hemostatic immune functions. Platelets are the second most abundant cells in the bloodstream with a … Read more
What is Microbiology? Importance, Types, and History What is Microbiology? Microbiology is one of the branches that make up biology and focuses on the study of microorganisms. It is dedicated to its classification, description, distribution, and analysis of its ways of life and functioning. In the case of pathogenic microorganisms, microbiology also studies their form of … Read more