Question

what is metabolism? and anabolism and catabolic​

Answer 1

Answer:

Anabolism and catabolism are the two broad types of biochemical reactions that make up metabolism. Anabolism builds complex molecules from simpler ones, while catabolism breaks large molecules into smaller ones. ... Metabolism is how a cell gets energy and removes waste.

Answer 2

Answer:

Anabolism:-

Anabolism or biosynthesis is the set of biochemical reactions that construct molecules from smaller components. Anabolic reactions are endergonic, meaning they require an input of energy to progress and are not spontaneous. Typically, anabolic and catabolic reactions are coupled, with catabolism providing the activation energy for anabolism. The hydrolysis of adenosine triphosphate (ATP) powers many anabolic processes. In general, condensation and reduction reactions are the mechanism behind anabolism.

Ex:-

• Glycerol reacts with fatty acids to make lipids:  CH2OHCH(OH)CH2OH + C17H35COOH  →  CH2OHCH(OH)CH2OOCC17H35
• Simple sugars combine to form disaccharides and water:  C6H12O6 + C6H12O6   →  C12H22O11 + H2O
• Amino acids join together to form dipeptides: NH2CHRCOOH + NH2CHRCOOH →  NH2CHRCONHCHRCOOH + H2O
• Carbon dioxide and water react to form glucose and oxygen in photosynthesis:  6CO2 + 6H2O  →  C6H12O6 + 6O2

Catabolism:-

Catabolism is the set of biochemical reactions that break down complex molecules into simpler ones. Catabolic processes are thermodynamically favorable and spontaneous, so cells use them to generate energy or to fuel anabolism. Catabolism is exergonic, meaning it releases heat and works via hydrolysis and oxidation.

Cells can store useful raw materials in complex molecules, use catabolism to break them down, and recover the smaller molecules to build new products. For example, catabolism of proteins, lipids, nucleic acids, and polysaccharides generates amino acids, fatty acids, nucleotides, and monosaccharides, respectively. Sometimes waste products are generated, including carbon dioxide, urea, ammonia, acetic acid, and lactic acid.

Ex:-

• During cellular respiration, glucose and oxygen react to yield carbon dioxide and water  C6H12O6 + 6O2  →  6CO2 + 6H2O
• In cells, hydroxide peroxide decomposes into water and oxygen:  2H2O2  →  2H2O + O2

Metabolism:-

Metabolism is the set of life-sustaining chemical reactions in organisms. The three main purposes of metabolism are: the conversion of food to energy to run cellular processes; the conversion of food/fuel.