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Fructose

Fructose

(Science: biochemistry) a 6 carbon sugar (hexose) abundant in plants. Fructose has its reducing group (carbonyl) at C2 and thus is a ketose, in contrast to glucose that has its carbonyl at C1 and thus an aldose. Sucrose, common table sugar, is the nonreducing disaccharide formed by an alpha linkage from C1 of glucose to C2 of fructose (latter in furanose form). Fructose is a component of polysaccharides such as inulin, levan. A simple Sugar found in honey and in many ripe fruits.


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Re: Increase in free energy in glycolysis

... the chaos increases the free energy continues to increase. The ATP usage in the two steps: hexokinase making glucose-6-phosphate and PFK1 making Fructose-1,6-Bisphosphate is made to overcome the activation energy of the subsequent step. I don't know what you understanding of biochemistry is and ...

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by daniel.kurz
Wed Feb 05, 2014 3:03 am
 
Forum: Molecular Biology
Topic: Increase in free energy in glycolysis
Replies: 3
Views: 630

Re: Number of water molecules produced by cellular respiration

... aldolase enzyme executing a reverse aldol condensation that consumes one water molecule per Dihydroxyacetone produced during the splitting of one fructose 1,6 bis phosphate. So with the 2 consumed during citrate formation we are now down to 12 -3 waters or 9 waters produced. 3 are still in excess ...

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by thornthor
Sun Nov 03, 2013 7:00 pm
 
Forum: Cell Biology
Topic: Number of water molecules produced by cellular respiration
Replies: 8
Views: 9196

Yeast Fermenetation on Different Sugars

Hello all. I had conducted an experiment in determining if four different sugars (glucose, fructose, lactose and sucrose) can be fermented by yeast via monitoring carbon dioxide production and measuring ethanol concentration. At then end of the experiment, it showed ...

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by zinoria
Fri Sep 13, 2013 1:47 pm
 
Forum: Microbiology
Topic: Yeast Fermenetation on Different Sugars
Replies: 1
Views: 780

Re: Gluconeogenesis

... your cells with no substrate from gluconeogenesis of residual metabolic intermediates? Acetyl-CoA, Oxaloacetate, malate, PEP or isomerization from fructose?

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by bytesyzechic
Wed Nov 14, 2012 11:07 pm
 
Forum: Cell Biology
Topic: Gluconeogenesis
Replies: 8
Views: 5202

Re: Stomach bloating and weight gain

... to me because it makes me feel good about myself after spending my entire childhood being bullied about my weight. I have been diagnose with Fructose & Lactose intolerance, Egg Allergy & Coeliac's Disease. Therefore my bloating cannot be a reaction due to sugar intake or for that ...

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by Pumbaa2
Thu Oct 25, 2012 5:38 am
 
Forum: Physiology
Topic: Stomach bloating and weight gain
Replies: 451
Views: 2542159
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