Please explain, thank you. 1) In the transcellular transport of glucose, what other molecule or ion...
Please explain, thank you.
1) In the transcellular transport of glucose, what other molecule or ion also gets pulled across the cell?
a. K+
b. Cl-
c. fructose
d. Na+
( Can you also simply explain the transcellular transport of glucose?)
Homework Answers
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Please explain, thank you.
1) In the transcellular transport of glucose, what other
molecule or ion...
Please help me with several of these questions, thank you very much. 1. During the propagation...
Please help me with several of these questions, thank you very much. 1. During the propagation of an action potential along the axon of a neuron, what is happening at the leading edge (the front) of the region of depolarization as it moves down the axon? a. Ligand-gated Na+channels are opening. b. Voltage-gated Na+channels are opening. c. Ligand-gated K+channels are opening. d. Voltage-gated Na+channels have become inactive and refractory. e. Voltage-gated Na+channels are closing. 2. During transcellular transport of glucose...
Which of the following transporters contributes to the transcellular transport of glucose? A) All of the...
Which of the following transporters contributes to the transcellular transport of glucose? A) All of the above B) C&D only C) Glucose uniporter D) Na+/ glucose symporter E) Na+/K+ pump
Given these parameters, what is the AG for K ion transport into the frog muscle cell...
Given these parameters, what is the AG for K ion transport into the frog muscle cell in the presence of Ach? Dr. Knowsalot smiles and nods. "Good," she says. "Now let's see whether K+ ions pass through the open Ach receptors into the cell. As you might remember, these channels are permeable to Na+, K+, and Ca2+. For a typical frog muscle cell, the concentration of K+ is roughly 124 mM inside the cell and 2.30 mM outside the cell."...
During the aerobic metabolism of glucose, glucose is ____________. Reduced to form water Oxidized to form...
During the aerobic metabolism of glucose, glucose is ____________. Reduced to form water Oxidized to form water Reduced to form CO2 Oxidized to form CO2 Which of the following describes the equation: FAD + XH2 à FADH2 + X. FAD is reduced to FADH2 It is a coupled reduction – oxidation reaction XH2 is oxidized to X All of the above Which of the following is FALSE about glycolysis? The initial steps of glycolysis requires energy derived from the splitting...
Question 1 Which of the following are likely to diffuse through the plasma membrane? glucose K+...
Question 1 Which of the following are likely to diffuse through the plasma membrane? glucose K+ Cl- H20 Na+ CO2 02 lipid Question 4 Which is(are) true about transport across the membrane? Channels can perform either active or passive transport Charged molecules move according to their electrochemical gradients Movement of an ion down its gradient requires energy Transporters are faster but less selective than channels Question 6 In the coupled transport of Na+ and glucose, the transporter O is an...
The function of the "ion pump" in nerve chemistry is to transport Na^+ and K^- against...
The function of the "ion pump" in nerve chemistry is to transport Na^+ and K^- against their concentration gradients in order to maintain constant values of their concentrations regulate the speed of transport of all ions across nerve cell membranes. transport Ca^2+ and Cl^- against their concentration gradients in order to maintain constant Values of their concentrations. allow the passage of Na^+, K^-, Ca^2+, and Cl^- faster than simple diffusion allows. prevent the transport of any ions against their concentration...
The Na glucose symporter transports glucose from the lumen of the small intestine into cells lining...
The Na glucose symporter transports glucose from the lumen of the small intestine into cells lining the lumen. Transport of 1 glucose molecule is directly coupled to the transport of 2 Nations into the cell. 2 Na*(out) + 1 glucose(out) - 2 Nat(in) + 1 glucose(in) Assume the following conditions at 37 °C: [Nalin - 12 mm, [Na lout = 145 mm, (glucoseJout = 28 pm, and Ay =-72 mV (inside negative). Faraday constant F = 96,485 C/mol, ideal gas...
Please be descriptive! thank you in advance! 1. Explain how solutes and water are reabsorbed in...
Please be descriptive! thank you in advance!
1. Explain how solutes and water are reabsorbed in the kidney tubules. Be sure to include the reabsorption of Na+, glucose, water, Cl-, Ca++, K+ etc. Include in your discussion how the various solutes are reabsorbed (i.e. sodium, glucose, amino acids) and the concept of renal threshold and saturation. Discuss the process of filtration. In your discussion, describe the filtration membrane in the renal corpuscle and the pressures involved in filtration. Discuss how...
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1. a) Consider a symporter protein that functions to bring in a specific amino acid into...
1. a) Consider a symporter protein that functions to bring in a specific amino acid into the cell against its gradient. Which of the following ion gradients could this protein use as an energy source? b) Consider an antiporter protein that functions to transport a molecule out of the cell against its gradient. Which of the following ion gradients could this protein use as an energy source? c) Consider a symporter protein that functions to transport a molecule out of...
Given these parameters, what is the AG for K ion transport into the frog muscle cell in the presence of Ach? Dr. Knowsalot smiles and nods. "Good," she says. "Now let's see whether K+ ions pass through the open Ach receptors into the cell. As you might remember, these channels are permeable to Na+, K+, and Ca2+. For a typical frog muscle cell, the concentration of K+ is roughly 124 mM inside the cell and 2.30 mM outside the cell."...
Question 1 Which of the following are likely to diffuse through the plasma membrane? glucose K+ Cl- H20 Na+ CO2 02 lipid Question 4 Which is(are) true about transport across the membrane? Channels can perform either active or passive transport Charged molecules move according to their electrochemical gradients Movement of an ion down its gradient requires energy Transporters are faster but less selective than channels Question 6 In the coupled transport of Na+ and glucose, the transporter O is an...
The function of the "ion pump" in nerve chemistry is to transport Na^+ and K^- against their concentration gradients in order to maintain constant values of their concentrations regulate the speed of transport of all ions across nerve cell membranes. transport Ca^2+ and Cl^- against their concentration gradients in order to maintain constant Values of their concentrations. allow the passage of Na^+, K^-, Ca^2+, and Cl^- faster than simple diffusion allows. prevent the transport of any ions against their concentration...
The Na glucose symporter transports glucose from the lumen of the small intestine into cells lining the lumen. Transport of 1 glucose molecule is directly coupled to the transport of 2 Nations into the cell. 2 Na*(out) + 1 glucose(out) - 2 Nat(in) + 1 glucose(in) Assume the following conditions at 37 °C: [Nalin - 12 mm, [Na lout = 145 mm, (glucoseJout = 28 pm, and Ay =-72 mV (inside negative). Faraday constant F = 96,485 C/mol, ideal gas...
Please be descriptive! thank you in advance!
1. Explain how solutes and water are reabsorbed in the kidney tubules. Be sure to include the reabsorption of Na+, glucose, water, Cl-, Ca++, K+ etc. Include in your discussion how the various solutes are reabsorbed (i.e. sodium, glucose, amino acids) and the concept of renal threshold and saturation. Discuss the process of filtration. In your discussion, describe the filtration membrane in the renal corpuscle and the pressures involved in filtration. Discuss how...
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