The fate of pyruvate describes what is done with the pyruvate molecules after glycolysis. Pyruvate is the final product formed in the cytosol during glycolysis, when glucose is broken down. Pyruvate is not locked to one single pathway. Instead, its direction depends on the cell’s oxygen status (available or not) and on metabolic demands. In … Read more
Pectin is a complicated polysaccharide that is mostly found in the cell walls of plants, notably fruits. It is a structural heteropolysaccharide made up mostly of units of galacturonic acid. Pectin is a glue that holds plant cells together, making the plant tissue strong and stable. In the culinary sector, it is often used as … Read more
The Henderson-Hasselbalch equation is a handy formula used in chemistry and biology to estimate the pH of a solution, especially when dealing with buffers—mixtures that resist changes in acidity or alkalinity. Think of it like a cheat sheet for predicting how acidic or basic a solution will be based on the balance between a weak … Read more
Ever wondered how your cells turn the food you eat into usable energy? Let’s break down the Krebs cycle—a cornerstone of cellular respiration—and answer the questions you’ve been searching for. Also known as the citric acid cycle, this process is a series of chemical reactions that extract energy from nutrients. But where does this critical … Read more
What is Gluconeogenesis? Gluconeogenesis Definition Gluconeogenesis is a metabolic process that synthesizes glucose from non-carbohydrate precursors, such as lactate, glycerol, and amino acids, primarily in the liver and kidneys, to maintain blood glucose levels during fasting or low carbohydrate intake. Location of Gluconeogenesis – Where does Gluconeogenesis Occur? Gluconeogenesis primarily occurs in the liver, which … Read more
What is Galactose? Galactose is a monosaccharide sugar that is an aldohexose. It is a C-4 epimer of glucose having the same structure as glucose, except that the atoms around carbon no. 4 are arranged differently. This sugar is around 65% of the sweetness of sucrose and is less sweet. It is paired with glucose … Read more
What is Glycogenesis? Definition of Glycogenesis Glycogenesis is the biological process of synthesizing glycogen from glucose molecules, primarily in the liver and muscles, for energy storage and glucose homeostasis. Key Enzymes in Glycogenesis Glycogenesis is the biochemical process that converts glucose into glycogen for storage in the liver and muscle tissues. This process relies on … Read more
What is Glycogenolysis? Glycogenolysis Definition Glycogenolysis is the enzymatic process of breaking down glycogen, a stored polysaccharide, into glucose-1-phosphate and glucose to provide energy or maintain blood sugar levels during fasting or increased energy demand. Glycogenolysis Location Glycogenolysis occurs in the cytoplasm of cells, primarily in the liver and skeletal muscles, with minimal activity in … Read more
What is Glycogen? Definition of Glycogen Glycogen is a branched polysaccharide made of glucose units that serves as the primary form of glucose storage in animals, fungi, and bacteria. It is primarily stored in the liver and muscles and acts as a readily mobilized energy source when the body needs glucose. Characteristics of Glycogen Glycogen … Read more
What is glycolysis? Definition of glycolysis Glycolysis is a metabolic process in which glucose, a six-carbon sugar, is broken down into two three-carbon pyruvate molecules, producing a net gain of two ATP and two NADH molecules. This anaerobic pathway occurs in the cytosol and is a key step in cellular energy production. Major Features of … Read more
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