Navigation Links
Cell metabolism


Cell metabolism is the process (or really the sum of many ongoing individual processes) by which living cells process nutrient molecules and maintain a living state. Metabolism has two distinct divisions: anabolism, in which a cell uses energy and reducing power to construct complex molecules and perform other life functions such a creating cellular structure; and catabolism, in which a cell breaks down complex molecules to yield energy and reducing power. Cell metabolism involves extremely complex sequences of controlled chemical reactions called metabolic pathways.

Contents

Anabolism

Anabolism is a constructive metabolic process whereby energy is consumed to synthesize or combine simpler substances, such as amino acids, into more complex organic compounds, such as enzymes and nucleic acids.

Catabolism

Catabolism is a type of metabolic process occurring in living cells by which complex molecules are broken down to produce energy and reducing power. On balance, catabolic reactions are normally exothermic.

Carbohydrate catabolism

Main article: Carbohydrate catabolism

Carbohydrate catabolism is the breakdown of carbohydrates into smaller units. The empirical formula for carbohydrates, like that of their monomer counterparts, is CX(H2YOY). Carbohydrates literally undergo combustion to retrieve the large amounts of energy in their bonds. Read more about mitochondria to find out more about the reaction and how its energy is secured in ATP.

Fat catabolism

Main article: Fat catabolism

Fat catabolism, also known as lipid catabolism, is the process of lipids or phospholipids being broken down by lipases. The opposite of fat catabolism is fat anabolism, involving the storage of energy, and the building of membranes.

Protein catabolism

Main article: Protein catabolism

Protein catabolism is the breakdown of proteins into amino acids and simple derivative compounds, for transport into the cell through the plasma membrane and ultimately for the polymerisation into new proteins via the use of ribonucleic acids (RNA) and ribosomes.

See also


'"/>


(Date:10/22/2014)... SAN JOSE, Calif. , Oct. 20, 2014 /PRNewswire/ ... with the United States Air Force Research Laboratory (AFRL), ... for Integrative Medicine (AzCIM) at the University of Arizona ... to receive research funding.  The AzCIM project,s goal is ... their ability to collect different volumes of sweat under ...
(Date:10/18/2014)... Among a group of 2,000 patients referred for ... a potential molecular diagnosis for 25 percent, including ... and new mutations contributing to disease, according to ... study is being released to coincide with the ... Whole-exome sequencing analyzes the exons or coding regions ...
(Date:10/17/2014)... release is available in German . ... a very few drugs. When treating overdoses, doctors are often ... especially difficult if there is a combination of drugs involved. ... and accidentally swallows his grandmother,s pills? ETH professor Jean-Christophe Leroux ... to find an answer to this question. "The task was ...
Breaking Biology News(10 mins):Nano-Bio Manufacturing Consortium Selects Project Proposed by Arizona Center for Integrative Medicine to Optimize Human Performance Monitoring Techniques 2Nano-Bio Manufacturing Consortium Selects Project Proposed by Arizona Center for Integrative Medicine to Optimize Human Performance Monitoring Techniques 3Whole-exome sequencing shows potential as diagnostic tool 2Emergency aid for overdoses 2Emergency aid for overdoses 3
... an important discovery that raises doubts concerning the viability ... warming, a projected $100 billion venture. Research performed ... Journal of Geophysical Research, suggests that ocean fertilization may ... in the atmosphere, a major contributor to global warming. ...
... Researchers at the University of Illinois have developed ... treatment and drug delivery. The highly permeable and ... the functional water channel protein Aquaporin Z into ... currently in the form of vesicles, show significantly ...
... Maryland, USA; 29 November 2007 Galapagos NV (Euronext ... (CFFT), the non-profit affiliate of the Cystic Fibrosis Foundation, ... treatments for cystic fibrosis. This new agreement between ... up to 5.5 million euros ($8.1 million U.S. dollars) ...
Cached Biology News:New research discredits $100B global warming 'fix' 2New research discredits $100B global warming 'fix' 3New research discredits $100B global warming 'fix' 4Researchers develop better membranes for water treatment, drug delivery 2Galapagos and Cystic Fibrosis Foundation Therapeutics announce drug discovery collaboration 2
Other biology definitionOther Tags