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Coenzymes

Coenzymes

organic nonprotein molecules, frequently phosphorylated derivatives of water-soluble vitamins, that bind with the protein molecule (apoenzymes) to form the active enzyme (holoenzyme). They are catalysts for the activation of enzymes.


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A few confusions about some energy molecules

... But I really don't understand the relationship here I just know one is kept in its reduced form and one in its oxidized form, they are both coenzymes(?) and either one is used or the other Also when comparing ATP, NADH and NADPH What's the difference? I'm guessing ATP has the msot energy ...

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by thatruth34pp
Sun Oct 07, 2012 3:43 am
 
Forum: Cell Biology
Topic: A few confusions about some energy molecules
Replies: 1
Views: 1460

Re: Krebs Cycle

... agree with Jack here! Carbon atoms and CO2 are the by-products of the redox reactions, and are not being oxidized or reduced. Look at the coenzymes involved during cellular respiration, which are being oxidized or reduced. Hint: What gains electrons (reduction), and what loses electrons ...

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by chrisPbacon
Sat Nov 05, 2011 8:05 pm
 
Forum: Cell Biology
Topic: Krebs Cycle
Replies: 2
Views: 1822

Re: Cellular Respiration

... details use both formulas (photosynthesis and cellular respiration). From just these two formulas you can connect the complete process down to the coenzymes, and electron transport chain. Photosynthesis: 6CO 2 + 6H 2 O + Energy ----> C 6 H 12 O 6 + 6O 2 Cellular Respiration: (Same as photosynthesis, ...

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by chrisPbacon
Fri Nov 04, 2011 3:13 am
 
Forum: Cell Biology
Topic: Cellular Respiration
Replies: 3
Views: 3554

Energy, enzymes & metabolism Questions.

... the difference between the mechanism of action of competitive and non-competitive enzyme inhibitors? What is the relationship between enzymes and coenzymes? How do allosteric enzymes control feedback regulation in metabolic pathways? What factors influence enzyme activity?

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by arasfromexile
Fri Sep 30, 2011 10:19 am
 
Forum: Molecular Biology
Topic: Energy, enzymes & metabolism Questions.
Replies: 4
Views: 11443

Reduction of NAD+

... take hydrogens from substrates and put them to the cofactors, which can be subsequently reoxidized either with the same enzyme (typically flavin coenzymes) or in other enzyme (typically nicotinamide cofactors)

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by JackBean
Tue Jun 14, 2011 8:32 am
 
Forum: Molecular Biology
Topic: Reduction of NAD+
Replies: 1
Views: 6917
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