Glucose Definition and 64 Threads

  1. D

    Why Did the Permanganate Ion and Glucose Reaction Change Colors?

    Hi. In class recently, we performed a reaction where we added potassium permanganate solution to a solution of sodium hydroxide, followed by a few grains of glucose. The resulting solution was green for a short time, and then quickly went to an orange colour. Im not very sure about what...
  2. B

    Ref. index of differnet concentrations of glucose

    is there a site with this? i want to see how the ref. index. of a soln of glucose varies with concentration. can someone tell me if my prediction that as concentration increase, ref. index increases is correct?
  3. T

    How is Glucose Analyzed in Sports Drinks Using Quantitative Benedict's Solution?

    Just realized wrong forum...sorry. I need some urgent help with this please! This is referring to my glucose analysis coursework, using Quantitative Benedicts solution (with potassium thiocyanate) and titrations to find out how much glucose is present in Lucozade and Powerade. I was...
  4. Hootenanny

    Products of Glucose Degradation in HCl Solution

    Does anybody know the possible products of the degredation of Glucose, more specifically in a solution of HCl (0.1-2 mol.dm^-3)? I've tried searching on the internet but caanot find any specifics. Thank's in advance.
  5. K

    High-Concentrate Glucose Foods to Identifying Sources

    Can anyone tell me what kinds of food contain high concentrate of glucose? thank you.
  6. C

    Hormone causing reabsorption of glucose

    Can anybody tell me what the hormone that causes the reabsorption of glucose in the nephrons is? Thanks.
  7. V

    Rate of glucose consumption decreases with yeast cells

    why the rate of glucose consumption dectrases when yeast cells cultured under anaerobic conditions are exposed to oxygen? :confused: :confused: :confused:
  8. C

    Sample of glucose (C6H12O6) contains 0.75 moles of Oxygen

    A sample of glucose (C6H12O6) contains 0.75 moles of Oxygen. How many moles of hydrogen does this sample contain? For this problem I was thinking that you might use some kind of ratio between hydrogen and oxygen, but I didn't quite know what to do with carbon? Thanks! :biggrin:
  9. C

    Why Do Condensation Reactions in Glucose Not Occur at C2 or C3?

    Condensation reactions occur between the OH and H of C 1,4 and 6 to form polysaccharides - why do we not get reaction at C 2 or 3? ( 5 is obvious since it is not attached to H or OH ) Thanks. :smile:
  10. Mk

    Making Glucose vs. Breaking Glucose

    How does in terms of energy, photosynthesis, differ from from a chemical reaction that breaks down glucose? Kinda vague...
  11. N

    Insulin and GLUT4 glucose transporters

    The presence of insulin increases the activity of the GLUT4 glucose transporters and not the actual number of the transporters. In a freeze fracture, it appeared that the GLUT4s moved from the internal membrane into the plasma membrane. I am asked to deduce the mechanism by which glucose...
  12. H

    What makes glucose the primary energy source for yeast during fermentation?

    suppose that glucose is the greatest source of energy for yeast. why is that? (during fermentation, anaerobic respiration) aside from that, what are the possible causes of changes in temperature which can affect the fermentation or anaerobic respiration of yeast? aside from ...perhaps, the...
  13. wasteofo2

    How does glucose get from chloroplast to cytoplasm?

    Does the glucose synthesised inside the chloroplast diffuse into the cytplasm to be used by whatever part of the cell needs it, or is there some sort of active transport going on?
  14. H

    Synthesizing Glucose from Pyruvate: Stuck at 3-phosphoglyceroylphosphate

    pyruvate ---> glucose ok so my professor gave us the task of synthesizing glucose from pyruvate and I'm stuck somewhere near the middle . showing all my work so far would clutter this thread quite a bit so i'll simplify. pyruvate -> oxaloacetate -> phosphoenolpyruvate ->...
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