Glucose Definition and 62 Threads

Cortisol normally initiates gluconeogenesis especially in the mornings, 1. Glucose rises due to liver gluconeogenesis. 2. Does insulin production respond to this glucose rise? 3. If it entails insulin production (due to rise in glucose), liver might store it back as glycogen leading to a futile...

I have a doubt about the process of type-2 diabetes. It is said that insulin resistance leads to type-2 diabetes. That would mean, even in the presence of insulin, the glucose uptake into the cells does not take place, leading to hyperglycemia. My doubt is, how could this happen in spite of...

Type-2 diabetes patients generally display higher levels of glucose circulating in their blood. While type-1 is considered a lack of insulin disease, in type-2 it is considered that insulin may be present, but it is not working properly. It is called Insulin-resistance. Most of the drugs for...

Let's say you have n glucose monomers. (C6H12O6) n You want to find out how many possible polymers exist in combining those n number of glucose molecules randomly. So glucose_1 has 6 OHs that can combine with glucose_2 which also has 6 OHs. Starting with glucose_1's first carbon C1, at that...

Hi everyone! Do you have an idea which organs/parts of the body are ONLY functional on glucose? I would say the brain, pancreas, liver and kidney, but I have to take into account only those organs that are ONLY functional on glucose

For now it is only about the 1 task If the task states that: You can approximate that their dynamics in water resembles that of an ideal gas. Does it then mean that I can take glucose as the ideal gas and then simply calculate the entropy for the ideal gas?

Hello We have designed an optical sensor to measure glucose. But we do not have the same changes for different concentrations. What do we need to do to be able to observe different Lifetime concentrations? In our sensor test, we used phosphorescence and glucose oxidase technology. The sensor...

My wife asked me a good question, and even with moderate Google searching I couldn't answer her question about how the patches are installed in arms. How do these BGL monitoring patches work? Thanks...

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Hi, I don't understand why this correction would be a nucleophile substitution? From what understand : The O atoms in the cyclic glucose acts as nucleophiles. ICH3 is also a nucleophile due to the presence of iodine's "non bonding electron pairs" (sorry I don't know the right term for this), and...

Hi guys, Online I found this really cool experiment that uses a glucose solution(e.g. in a beaker) to rotate the plane of polarization of a polarized light beam passing through it, of an angle ##\theta## which depends on the frequency of the EM wave. Then, for example, watching white light...

Blood glucose is measured and compared against a set of standard/normal values (like, fasting 100 mg/dL etc) to determine if a person has hyperglycemia or not. Similarly Blood pressure readings (systolic & diastolic) are also compared against another set of standard/normal values like 120/80...

<mentor - moved to Engineering> Hi, I would like to know how the glucose content can be measuring in hot beverages using non-intrusive method. Thankyou

The rate at which glucose enters the bloodstream is ##r## units per minute so: ## \frac{dI}{dt} = r ## The rate at which it leaves the body is: ##\frac {dE}{dt} = -k Q(t) ## Then the rate at which the glucose in the body changes is: A) ## Q'(t) = \frac{dI}{dt} + \frac {dE}{dt} = r - k...

I fell upon an article outlining the general health benefits of a balanced pH, and specific anti cancer benefits. ... both concepts are well supported in published studies. The article then went on to describe a protocol, whereby sodium bicarbonate is dissolved in liquefied honey. The principal...

Hello, Can you tell me please the glucose physiology in respect to the lymphatic system in short? Is there glucose inside the lymph? How does glucose enter/leaves the lymph? Are the glucose levels in blood related to the glucose levels in lymph? thanks!

Hi, Wikipedia in its article on 'Glycosuria' says that the renal threshold for glucose (RTG) reabsorption in the kidney is around 160-180 mg/dL. Beyond which the glucose starts to excrete in the urine. But in diabetic people blood glucose exceeds in range of 300-400 mg/dL is prevalent. How this...

Hello, my book shows this figure of Fischer formula of D-glucose I don't understand this figure, and I wonder why the upper carbon atoms in both the right and left formulas have 5 bonds. And from where comes this hedrogen atom in the upper left side of the figure (attached to alpha...

Homework Statement : I am using a virtual chemistry laboratory and the directions for the first lab experiment says to prepare 500 mL of 0.025 M of glucose solution by diluting the 1 M glucose solution. (I am re-posting this question due to the fact that the previous one was deleted because it...

The enthalpies of formation with reference to (2) are: ∆(Glucose)= −1,268 /, ∆(Carbon Dioxide)= −393.5 ./, ∆(water)= −285.8 /. How do I calculate the enthalpy for the combustion of 1 mole of glucose? I know H = U + PV and ∆H = Q + Wother, but I am confused by all the chemistry involved!

We have a good cholesterol (HDL) and bad cholesterol. It just occurred to me that do we have a similar thing in glucose too. Good glucose after a proper digestion and bad glucose in improper digestion?

Guys, how does blood glucose sensor works? I am particularly interested, how does glucose is adsorbed in the sensor, how does it converted into electric signal?

Why does glucose on prolonged heating with HI give n-hexane? What mechanism/reaction type is this? All I knew till now was that alcohols would give halogen substituted products with hydrogen halides.

Dear PF Forum, Can anyone help me? I'd like to know what is the reaction that produces methane from sugar? I believe it's reduction. This is sugar oxydation: C6H12O6 + 6O2 -> 6CO2 + 6H2O What is the reaction to produce methane from glucose? C6H12O6 + ? -> CH4 + ? And please if you would be so...

I am trying to understand about glucose metabolism! I have been researching this stuff forever! X( Would you see if my explanations are right, and if not, tell my why? Thank you SO much! That would be a HUGE help! Is it true that uptake and release of gas/nutrients only occur in the...

does glucose in its cyclic structure react with HI to form CH3-CH2-CH2-CH2-CH2-CH3? (open chain structure of glucose reacts with HI to form CH3-CH2-CH2-CH2-CH2-CH3)

Can this photo synthesis be done by technical means or is it only happen in plants? Synthesis: 6CO2 + 6H2O(gas) + sun radiation = C6 H12 O6(Glucose) + 6O2 Revers: (cellular respiration) C6 H12 O6(Glucose) + 6O2 = 6CO2 + 6H2O(gas) + caloric energy (deltaG) deltaG = -2880 kJ per mole...

I'm a third year physics undergraduate and I want to make 3D Graphene - without spending a fortune. This is my background: I found this review article by Jiang and Fan (Design of advanced porous graphene materials: from graphene nanomesh to 3D architectures) to be very helpful. From what...

We're usually just told that exercise is a great way to stimulate the movement of glucose into cells. But how does it do that? I would think that insulin resistance is insulin resistance, exercise or no exercise.

Even though their molecular formulas are the same? Fructose is an isomer of glucose and they are both cyclic and have 5 carbons so I was wondering why fructose was higher on the TLC plate than glucose. Thank you.

Homework Statement This is for an experiment that separates sugars in a sample using TLC. We are given a glucose standard solution with a concentration of 1mg/ml as well as 3 standard sugar solutions (glucose, fructose and maltose) all with the same concentration (10mg/ml) in 10% v/v...

Hi! My friends and I have been working on a project which encapsulates the use of semi porous transparent membranes that can selectively pass glucose molecules through them in one direction. Does such a membrane already exist? Where can I get literature on the construction and/or existence of...

Homework Statement Why does the human body spend two high energy phosphate bonds to store glucose as glycogen in muscle and liver, and not just as glucose? What is the advantage in using energy to polymerize the glucose molecule? Homework Equations The Attempt at a Solution...

I thought D and L referred to the direction of the OH on the LAST chirality center. So why are all the other OH also switched up? http://upload.wikimedia.org/wikipedia/commons/thumb/0/06/DL-Glucose.svg/300px-DL-Glucose.svg.png

Homework Statement how do you prepare a solution for 25ml of 2.5% glucose form a stock of 1.75M glucose i don't get how you would do this without the density of 2.5% glucose solution Homework Equations c1v2 = c2v2 molecular mass glucose = 180g/molThe Attempt at a Solution not sure if I am...

Sir/Madam, what is out put of glucose+water?is it possion? can i store this in packets? how long? if i combine "water+glucose+citric acid+carbon dioxide" what's the output? which taste i get?

Is there a way to synthesize glucose, or any other high energy sugars, from simpler compounds? What are the compounds and how can they be converted into glucose? Can you describe the reactions that take place to form glucose? This is what I mean, as an example: Say we have methane, or CH4...

Homework Statement The metabolism of glucose, C6H12O6, yields Co2(g) and H2O(l) as products. Heat released in the process is converted to useful work with about 70% efficiency. Calculate the mass of glucose metabolized by a 59.0-kg person in climbing a mountain with an elevation gain of...

Homework Statement What is your favorite food? Name one organic molecule that is present that food. In the space provided, describe the major structural features of this molecule, including any important functional groups.Homework Equations ~The Attempt at a Solution I've decided to pick...

Glucose (C6H12O6) is a monomer that can form naturally occurring polymers. What would be the approximate molecular weight of a polymer made from 5 glucose monomers? a) 810 b) 828 c) 882 d) 900 i said D, but my friend in convincing me its B :S

How does fat change to glucose? Please give links, slideshows and e-books, where are reactions, schemes, mechanisms and other useful information. Thank you!

i've been questioning that water helps to lower glucose level in blood, if maybe 40grams of glucose is maximum per day and it need 3 liter of water.. but what if i ate 80grams of glucose and 6 liter of water to dilute it, will it work?? where does the extra glucose go?

Homework Statement Homework Equations ΔH rxn = ΔH products - ΔH reactants ΔU = q + w The Attempt at a Solution Pretty overwhelmed with the entire problem. Since the ΔH's of all reactants and products were in the literature for the reference temperature of 298.15 K, I was able to...

I'm reading an article about glucose dynamics and there were two terms I wasn't sure about. I'm guessing insulin sensitivity is how much glucose is absorbed by a certain amount of insulin, but what is glucose effectiveness? Any help is appreciated.

Hi all, I find difficulties in recognizing between alpha and beta Glucose. Can anybody explain briefly how can I differentiate between them ?

Homework Statement Okay, a while ago, I did a lab that had me get glucose osazone (C18-H22-N4-O4). Now, I am trying to calculate the theoretical mass of the osazone. The chemical equations goes as follows: C6-H5-N2-H3*HCl + Na-C2-H3-O2*H2-O ------> C6-H5-N2-H3 + H-C2-H3-O2 + Na-Cl +...

We learned that life prefers to use glucose over other sugars (catabolite repression). 1) Why is glucose preferred? 2) Why do sperm use fructose instead of glucose?

You are required to plan an investigation to find out the rate of glucose uptake by yeast cells varies with glucose concentration material resources - 10% glucose solution - disilled water -yeast suspension - Benedicts reagent I have done the introduction, apparatus required, but I am...

After ingestion of glucose, trace the path of the hydrogen atoms in glucose beginning within the digestive tract and ending with the oxidation of the glucose during aerobic respiration. Can anyone help me out with this problem? Thanks to everyone in advance!

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...