Dictionary » C » Catabolism

Catabolism

Definition

noun

(1) The process involving a series of degradative chemical reactions that break down complex molecules into smaller units, usually releasing energy in the process.

(2) A destructive type of metabolism.


Supplement

For instance, large molecules such as polysaccharides, nucleic acids and proteins are broken down into smaller units such as monosaccharides, nucleotides and amino acids, respectively.


Word origin: from Greek καταβολή (katabole), “‘throwing down’”), from κατά (kata), “‘down’”) + βάλλειν (ballein), “‘to throw’”).

Compare: anabolism.
See also: metabolism.


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Nucleotide metabolism

Hi What is nucleotide metabolism important for? Is it different from energy metabolism where foods are converted into something necessary for catabolism (energy harvest) and anabolism (cell construction)? I would appreciate it if you could list up functions or roles of nucleotide metabolism. ...

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by Young
Mon Aug 19, 2013 12:13 am
 
Forum: Cell Biology
Topic: Nucleotide metabolism
Replies: 2
Views: 977

Please help!

... and is a compund which has been formed (sometimes oxaloacetate, sometimes acetyl, depending on the end compound that will be produced) after catabolism of pyruvate. 2) Yes, it is only the carboxyl group, C4O4 succinic acid has 6 hydrogen atoms. 3) Yes, oxidative phosphorylation, after a coupled ...

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by billyfisher100
Sat Jan 21, 2012 1:13 pm
 
Forum: Cell Biology
Topic: Please help!
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Views: 5814

Re: TCA inhibitor

... end of the electron transport chain, obviously much after the coupled coenzyme Q process, a totally different substrate by then, formed after many catabolism processes.So, when the new oxygen atom is bonded to form fumarate by fumarase, the structure changes in the cycle, so as it is a muxh similar ...

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by billyfisher100
Fri Jan 20, 2012 1:21 am
 
Forum: Cell Biology
Topic: TCA inhibitor
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Views: 6316

Re: Enzymes

... pepsin is protease! http://en.wikipedia.org/wiki/Pepsin Muska: OK, you need to acount, that in the body there is both anabolism (building up) and catabolism (break down). Also, if you want something to break down, you have first to build that, right? So, basically everything can be both substrate ...

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by Muska
Thu Feb 25, 2010 1:24 pm
 
Forum: Molecular Biology
Topic: Enzymes
Replies: 16
Views: 18163

Re: Enzymes

... pepsin is protease! http://en.wikipedia.org/wiki/Pepsin Muska: OK, you need to acount, that in the body there is both anabolism (building up) and catabolism (break down). Also, if you want something to break down, you have first to build that, right? So, basically everything can be both substrate ...

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by JackBean
Thu Feb 25, 2010 7:20 am
 
Forum: Molecular Biology
Topic: Enzymes
Replies: 16
Views: 18163
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