Intestinal epithelial cells pump glucose into the cell against its concentration gradient using the Na-glucose symporter. Recallthat the Na* concentration is significantly higher outside the cell than inside the cell. The symporter couples the "downhill"transport of two Na* ions into the cell to the "uphill" transport of glucose into the cell.If the Nat concentration outside the cell ([Na lout) is 141 mM and that inside the cell ([Na* lin) is 19.0 mM, and the cellpotential is -52.0 mV (inside negative), calculate the maximum energy available for pumping a mole of glucose into the cell.Assume the temperature is 37 °C.AGglac9.63IncorrectkJmolWhat is the maximum ratio of [glucose), to [glucose)outthat could theoretically be produced if the energycoupling were 100% efficient?O 27001.133.7 x 10-7.90

The change in Gibbs free energy value (∆G) for the transport of a solute across a membrane is the…

Intestinal epithelial cells pump glucose into the cell against its concentration gradient using the Na-glucose symporter. Recall that the Nat concentration is significantly higher outside the cell than inside the cell. The symporter couples the "downhill" transport of two Na* ions into the cell to the "uphill" transport of glucose into the cell. If the Na* concentration outside the cell ([Na* Jou) is 141 mM and that inside the cell ([Na* lin) is 19.0 mm, and the cell potential is -52.0 mV (inside negative), calculate the maximum energy available for pumping a mole of glucose into the cell. Assume the temperature is 37 °C. AGgloc= 9.63 Incorrect kJ mol What is the maximum ratio of [glucose), to [glucose)out that could theoretically be produced if the energy coupling were 100% efficient? O 2700 1.13 3.7 x 10- 7.90

Intestinal epithelial cells pump glucose into the cell against its concentration gradient using the Na-glucose symporter. Recall that the Nat concentration is significantly higher outside the cell than inside the cell. The symporter couples the "downhill" transport of two Na* ions into the cell to the "uphill" transport of glucose into the cell. If the Na* concentration outside the cell ([Na* Jou) is 141 mM and that inside the cell ([Na* lin) is 19.0 mm, and the cell potential is -52.0 mV (inside negative), calculate the maximum energy available for pumping a mole of glucose into the cell. Assume the temperature is 37 °C. AGgloc= 9.63 Incorrect kJ mol What is the maximum ratio of [glucose), to [glucose)out that could theoretically be produced if the energy coupling were 100% efficient? O 2700 1.13 3.7 x 10- 7.90

Biochemistry

9th Edition

ISBN:9781305961135

Author:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal

Publisher:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal

Chapter3: Amino Acids And Peptides

Section: Chapter Questions

Problem 54RE: THOUGHT QUESTION Imagine we identify a gene that is directly responsible for the effects of...

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Intestinal epithelial cells pump glucose into the cell against its concentration gradient using the Na*-glucose symporter. Recall that the Na+ concentration is significantly higher outside the cell than inside the cell. The symporter couples the "downhill" transport of two Na+ ions into the cell to the "uphill" transport of glucose into the cell. If the Na+ concentration outside the cell ([Na* lout) is 147 mM and that inside the cell ([Na+]in) is 17.0 mM, and the cell potential is -54.0 mV (inside negative), calculate the maximum energy available for pumping a mole of glucose into the cell. Assume the temperature is 37 °C. AG gluc kJ mol What is the maximum ratio of [glucose]in to [glucose] out that could theoretically be produced if the energy coupling were 100% efficient? 1.13 2.3 × 10-4 8.36 4300
Intestinal epithelial cells pump glucose into the cell against its concentration gradient using the Na+– glucose symporter. Recall that the Na+ concentration is significantly higher outside the cell than inside the cell. The symporter couples the "downhill" transport of two Na+ ions into the cell to the "uphill" transport of glucose into the cell. If the Na+ concentration outside the cell ([Na+]out) is 163 mM and that inside the cell ([Na+]in) is 21.0 mM, and the cell potential is −54.0 mV (inside negative), calculate the maximum energy available for pumping a mole of glucose into the cell. Assume the temperature is 37 °C.
Intestinal epithelial cells pump glucose into the cell against its concentration gradient using the Nat-glucose symporter. Recall that the Na+ concentration is significantly higher outside the cell than inside the cell. The symporter couples the "downhill" transport of two Na+ ions into the cell to the "uphill" transport of glucose into the cell. If the Na+ concentration outside the cell ([Na+]out) is 155 mM and that inside the cell ([Na+ lin) is 21.0 mM, and the cell potential is -52.0 mV (inside negative), calculate the maximum energy available for pumping a mole of glucose into the cell. Assume the temperature is 37 °C. AGgluc = kJ mol What is the maximum ratio of [glucose] in to [glucose]out that could theoretically be produced if the energy coupling were 100% efficient? O 2700 7.89 O 1.14 3.7 x 10-4
O Att Intestinal epithelial cells pump glucose into the cell against its concentration gradient using the Nat-glucose symporter. Recall that the Nat concentration is significantly higher outside the cell than inside the cell. The symporter couples the "downhill" transport of two Nat ions into the cell to the "uphill" transport of glucose into the cell. If the Nat concentration outside the cell ([Na lout) is 161 mM and that inside the cell ([Na* Jm) is 17.0 mM, and the cell potential is -50.0 mV (inside negative), calculate the maximum energy available for pumping a mole of glucose into the cell. Assume the temperature is 37 °C. What is the maximum ratio of (glucose] to [glucoselout 10.62 kJ AG gluc mol that could theoretically be produced if the energy Incorrect coupling were 100% efficient? O 1.13 8.24 3800 2.6 x 10 Incorrect
The following table shows experimental results of the glucose transport rate, mM/sec, following facilitated diffusion by glucose carrier proteins. (Recall: the starting conc. L represents glucose added to one side of the membrane; distilled water, omM of glucose was added to the other side of the membrane). The rate of glucose transport was 0.0031 mm/sec with 8mM of glucose (run number 4, highlighted); the rate decreased to 0.0017 mM/sec with 10mM of glucose (run 5, highlighted). Why was the rate of glucose transport slower when the concentration gradient was increased? Experiment Results Run Number Solute 1 1 2 2 3 33 4 4 5 6 6 Na Ch Glucose Na Ch Glucose Na Ch Glucose Nat Ch Glucose Na Ch Glucose Nat Cl Glucose Start Conc. L Start Conc. R (MM) (mM) 0.00 0.00 2.00 0.00 0.00 0.00 8.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 8.00 0.00 0.00 0.00 10.00 0.00 2.00 0.00 2.00 0.00 Carriers 500 500 500 500 700 700 700 700 100 100 700 700 Rate (mm/sec) 0.0000 0.0008 0.0000 0.0023 0.0000 0.0010…
THOUGHT QUESTION Imagine we identify a gene that is directly responsible for the effects of vasopressin on male mammals, including humans-we will call it trust1-that leads to the production of a vasopressin receptor in the brain, which we will call TRUST1. There are different versions of trust1, all of which lead to different levels of the behavior associated with this neuropeptide on male behavior. Give some examples where it would be a good idea to know a particular males genotype-that is, which of the trust1 genes he has. Give an example of when you think science has gone too far and this information should not be known.
What effect does a negative effector have on the graph of reac- tion rate (V) vs. [substrate] for an allosteric effector?
A spherical cell with the diameter of 10uMhas a protein concentration of 20 mg/ml. Determine the number of protein molecules within the cell if the molecular weight of an average protein is 50,000 daltons (g/mol). Recall that Avogadro's number is N₁ = 6.0221367×1023 molecules/mol.
Protein purification table: A 50 ml crude skeletal muscle extract contains 32mg of protein per ml. Ten ul of the extract catalyzes a reaction at a rate of 0.14 µmol product per minute. The extract was fractionated by ammonium sulfate precipitation, and the fraction precipitating between 20% and 40% saturation was dissolved in 10ml. The solution contains 50mg/ml protein. Ten ul of this purified fraction catalyzes the reaction at a rate of 0.65 µmol/min (a) What is the degree of purification (fold purification)? (b) What is the percent yield of the enzyme recovered in the purification?
The diffusivity of amino acids in polyacrylamide gel is approximately 1x10^-9 cm2./s calculate the initial flux of amino acids, give an instantaneous gradient of (20g/cm 3 )/8cm Why is polyacrylamide gel is used in electrophoresis?
Give typed full explanation Bradykinin is a plasma peptide and a potent vasodilator. It is derived from a large precursor called kininogen. Bradykinin has the following structure: Arg-Pro-Pro-Gly-Phe-Ser-Pro-Phe-Arg. Which amino acids in bradykinin have reactive functional groups in their side chains? What are these reactive functional groups? What does the name "kininogen" indicate?
Table K₁ (T1) Vmax (T1) Kt (T2) Vmax (T2) 1 1.12 mM 125 nmole/min None of the above. 3.0 mM 130 nmole/min Based on these values, what are your conclusions? O T1 is most likely a cell that expresses a high affinity transporter for glucose. T2 is most likely a cell that expresses a high affinity transporter for glucose. T1 must be a cell expressing the insulin-dependent glucose transporter. Each transporter has a similar Vmax and therefore both T1 and T2 are the same cell type.