Category Archives: Biology

Pseudostratified Columnar Epithelium | Definition, & Types

By | October 19, 2019

Pseudostratified Columnar Epithelium Pseudostratified Columnar Epithelium Definition: The pseudostratified columnar epithelium is the tissue which creates by a single layer of the cell giving the appearance of made by multiple layers. The nuclei of these cells have different levels by leading the illusion of stratified. It is difficult to find pseudostratified epithelia which are composed of cuboidal or… Read More »

Muscle Cell | Definition, Anatomy, Types & Functions

By | October 16, 2019

Muscle Cell Muscle Cell Definition: A muscle cell is also known as Myocyte, which is a specialized animal cell that can shorten its length by using a series of motor proteins especially arranged in the cell. And several other associated proteins help, actin, and myosin form thin and thick filaments that slide past each other in order to… Read More »

Glycolysis | Introduction, Pathway , Diagram & Summary

By | October 14, 2019

Glycolysis Introduction of Glycolysis: Glycolysis is a process in which glucose divided into two pyruvate molecules. However, it is assumed as a linear pathway of ten enzyme meditation steps. This pathway has two stages or phases; the energy investment phase and the energy generation phase. In it, the first five steps out of ten are Energy Investment Phase… Read More »

Glycogenolysis | Definition, Pathway, Diagram & Functions

By | October 14, 2019

Glycogenolysis Glycogenolysis Definition: What is Glycogenolysis: Glycogenolysis is basically a regulated process that occurs to play during a period of lack of glucose (i.e. hypoglycemia) or accelerated glucose utilization. It is used for a short period of fasting as a meal after one night sleeping. It is controlled by hormones. It breaks down the molecule of glycogen into glucose.… Read More »

Gluconeogenesis | Definition, Pathway, Diagram & Functions

By | October 14, 2019

Gluconeogenesis Gluconeogenesis Definition What is Gluconeogenesis: Gluconeogenesis means that “the production of new glucose”. Gluconeogenesis (GNG) is a metallic pathway that generates glucose from non-carbohydrate carbon substrate including glycerol, lactate, and glucogenic amino acid. It occurs around 8 hours of fasting when liver glycogen stores deplete continually and alternative source of glucose is needed. It occurs in the… Read More »

Simple Columnar Epithelium |Introduction ,Types, & Functions

By | October 12, 2019

Simple Columnar Epithelium Simple Columnar Epithelium Definition: The Simple Columnar Epithelium is tissues composed of a single layer of long epithelial cells which are usually seen in an area where absorption and secretion are important facts. The cells of these epithelial are arranged in a neat row within nuclei at the same level, near to th basal end.… Read More »

Scientific Method | Definition, Steps & Example

By | October 8, 2019

Scientific Method Scientific Method Definition: The scientific method is defined as a series of processes that people use in order to gather information about the world around them. They do this to improve their knowledge by gaining more information and attempt to describe why and how things happen. This method includes making observations, forming questions, making a hypothesis,… Read More »

DNA Translation |Introduction, Steps & Daigram

By | October 5, 2019

DNA Translation Overview of Translation: DNA translation is the second step for creating proteins. In translation, the messenger RNA (or mRNA) is ‘decoded’ in order to build a protein, which consists of a particular series of amino acids. Our skin, bone, and muscles are made up of cells. And each cell consists of many billions of proteins. The… Read More »

Polysaccharide |Definition, Structure , Functions & Examples

By | October 5, 2019

Carbohydrates Carbohydrates Definition The term “carbohydrates” is applied to a large number of relatively heterogeneous compounds found in all animals and plants. Carbohydrates are polyhydric alcohols with potentially active carbonyl groups which may either be aldehyde or ketone groups. They also include those components which yield them on hydrolysis. Some carbohydrates also contain N and S. Carbohydrates are… Read More »

DNA Transcription | Definition, Stages & Diagram

By | October 5, 2019

DNA Transcription DNA Transcription Introduction: In DNA transcription, the DNA sequence of a gene is copied out (transcribed) in order to make a molecule of RNA. It is the first step in the expression of the gene. The process of DNA Transcription is done by the enzymes known as RNA polymerases. In another word, DNA Transcription is a… Read More »