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Reactant

reactant

A substance taking part in a chemical reaction.

acute phase reactants, A group of proteins that are produced and/or released in increased concentrations during the acute phase reaction, including fibrinogen; c-reactive protein; complement proteins B, C3, C4; a2-acid glycoprotein, serum amyloid A, proteinase inhibitors, etc.


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Re: Enzymes and activation energy.

... the energy required to reach the highest energy transition state of the reaction. The reduction of activation energy (ΔG) increases the number of reactant molecules with enough energy to reach the activation energy and form the product. So I really think you answered the question in your first ...

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by kolean
Wed Jul 08, 2009 5:04 pm
 
Forum: Molecular Biology
Topic: Enzymes and activation energy.
Replies: 4
Views: 382

Re: The mystery of the disappearing hydrogens.

... The combination of a phosphate with glucose is a dehydration synthesis. It's not just a hydrogen that is lost, it is an entire water, with one reactant contributing H and the other contributing OH to the formation of the water :? No oxygen is lost in the first stage of glycolysis C6H12O6---> ...

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by yyttr2
Thu Jan 22, 2009 12:27 am
 
Forum: Cell Biology
Topic: The mystery of the disappearing hydrogens.
Replies: 3
Views: 542

Re: The mystery of the disappearing hydrogens.

... The combination of a phosphate with glucose is a dehydration synthesis. It's not just a hydrogen that is lost, it is an entire water, with one reactant contributing H and the other contributing OH to the formation of the water. Meanwhile the phosphate is cleaved by hydrolysis from ATP, making ...

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by jonmoulton
Wed Jan 21, 2009 5:16 pm
 
Forum: Cell Biology
Topic: The mystery of the disappearing hydrogens.
Replies: 3
Views: 542

Photosynthesis Trivia

... (D.) carbohydrate and oxygen 4. As far as the light reaction of photosynthesis is concerned, what is the role of oxygen? (A.) It is a necessary reactant. (B.) It is a waste product. (C.) It is a product that is then utilized in the dark reaction. (D.) It is not involved as a product or a reactant. ...

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by vstexas09
Mon Oct 13, 2008 12:46 am
 
Forum: Cell Biology
Topic: Photosynthesis Trivia
Replies: 5
Views: 5333

Properties of water

... such as acids and salts, but it itself ionizes into H+ and OH- ions. Thus, it facilitates chemical reactions, and it itself participates as a reactant or product in many of them, especially the important metabolic reactions, hydrolysis and condensation.

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by abbassido
Wed Sep 10, 2008 7:33 am
 
Forum: General Discussion
Topic: Properties of water
Replies: 4
Views: 2654
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