Describe how inhibition of the plasma membrane Na/K ATPase affects Glucose absorption:
Describe how inhibition of the plasma membrane Na/K ATPase affects Glucose absorption:
Homework Answers
Glucose absorption :-
• Glucose, is transported into the epithelial cells of the
intestine by active transport, via a sodium dependant transporter
called SGLT 1.
• Sodium-glucose linked transporter (SGLT) activity is maintained
by sodium concentration gradient.
• Na/K ATPase pumps sodium out to cell by active transport and
creates low concentration of sodium. This low concentration of
sodium in cell drives activity of SGLT, now glucose transported
into cell by symport with sodium down to the concentration gradient
of sodium. (*Sodium is transported in direction of concentration
gradient with glucose).
If Na/K ATPase is inhibited then :-
• No pumping of sodium out to cell.
• High concentration of sodium in cell.
• No movement of sodium along with glucose from outside to
inside.
• Glucose absorption is stopped.
So, Na/K inhibition will decrease or stop the glucose absorption.
Add Answer to:
Describe how inhibition of the plasma membrane Na/K ATPase
affects Glucose absorption:
Na^+/K^+ ATPase (sodium potassum adenosine triphosphatase) is found in the plasma membrane and catalyzes the exchange...
Na^+/K^+ ATPase (sodium potassum adenosine triphosphatase) is found in the plasma membrane and catalyzes the exchange of sodium and potassium ions across the membrane. Sort the following statements about the transport system as either true or false.
Question 33 2.5 pts The Na+-K+ ATPase transporter found in the plasma membrane of most animal...
Question 33 2.5 pts The Na+-K+ ATPase transporter found in the plasma membrane of most animal cells gets its energy from: ATP hydrolysis The electrochemical gradient across the membrane O Co-transport of H+ into the cell None are correct, this transporter functions by facilitated diffusion All are correct
Roles of the Na+/ K+ pump 1. Maintain the Nat/K+ concentration gradicnt across the plasma membrane....
Roles of the Na+/ K+ pump 1. Maintain the Nat/K+ concentration gradicnt across the plasma membrane. (That's obvious) 2. It plays a role in maintaining the resting membrane potential. Why? 3. The steep electrochemical gradient of Na+ is used in "coupled active transport" (coupled pumps). If the Nat/K+ pump stops, then these Na+ coupled transport mechanisms will also eventually stop. Explain The apical surface of the epithelial cells that line the lumen of the gut contains a symport that used...
How is the H+-ATPase so important for nutrient transport across the plasma membrane?
How is the H+-ATPase so important for nutrient transport across the plasma membrane?
You have isolated the Na/K-ATPase in a semi-purified membrane system. Given higher concentrations of Na' out...
You have isolated the Na/K-ATPase in a semi-purified membrane system. Given higher concentrations of Na' out and higher K inside, addition of ATP to the inside leads to increases of Nat olutside and Kt inside as expected. If instead, you add the ATP to the outside of the membrane, you don't see any change in the ion levels. Why? • ATP acts as an irreversible inhibitor of the Na/K-ATPase if it binds on the exterior side. The active site for...
Imumseinratio that can be 2. Calculate the maximum (glucose]out achieved by the plasma membrane N...
imumseinratio that can be 2. Calculate the maximum (glucose]out achieved by the plasma membrane Na*-glucose symporter of an epithelial cell when [Na']n 12 mM, [Nalout 145 mM, the membrane potential is -50 mV (inside negative), and the temperature is 37 °C Apical surface Basal surface Intestinal Blood lumen 2 K* Microvili Epithelial cell 3 Na+ Na"K+ ATPas Glucose Glucose Glucose uniporter GLUT2 (facilitates Na -glucose symporter (driven by high extracellular Na I downhill efflux)
imumseinratio that can be 2. Calculate...
The function of Na+K+ ATPase in a cell membrane of cultured cells is being investigated. The...
The function of Na+K+ ATPase in a cell membrane of cultured cells is being investigated. The cell is then supplied with an analog of ATP (ATV, adenosine tri canada the) this binds to the protein but there is no hydrolysis. What would be the affect of this drug on the transporter
Describe how the Na+ –K+ ATPase manages to cycle through its various states unidirectionally (pum...
Describe how the Na+ –K+ ATPase manages to cycle through its various states unidirectionally (pumping 3Na+ ions out of and 2K+ ions into the cell per cycle) and how the pump discriminates between Na+ and K+ ions (which bind to the same site!).
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...
Describe how the Na+ –K+ ATPase manages to cycle through its various states unidirectionally (pumping 3Na+...
Describe how the Na+ –K+ ATPase manages to cycle through its various states unidirectionally (pumping 3Na+ ions out of and 2K+ ions into the cell per cycle) and how the pump discriminates between Na+ and K+ ions (which bind to the same site!).
Na^+/K^+ ATPase (sodium potassum adenosine triphosphatase) is found in the plasma membrane and catalyzes the exchange of sodium and potassium ions across the membrane. Sort the following statements about the transport system as either true or false.
Question 33 2.5 pts The Na+-K+ ATPase transporter found in the plasma membrane of most animal cells gets its energy from: ATP hydrolysis The electrochemical gradient across the membrane O Co-transport of H+ into the cell None are correct, this transporter functions by facilitated diffusion All are correct
Roles of the Na+/ K+ pump 1. Maintain the Nat/K+ concentration gradicnt across the plasma membrane. (That's obvious) 2. It plays a role in maintaining the resting membrane potential. Why? 3. The steep electrochemical gradient of Na+ is used in "coupled active transport" (coupled pumps). If the Nat/K+ pump stops, then these Na+ coupled transport mechanisms will also eventually stop. Explain The apical surface of the epithelial cells that line the lumen of the gut contains a symport that used...
You have isolated the Na/K-ATPase in a semi-purified membrane system. Given higher concentrations of Na' out and higher K inside, addition of ATP to the inside leads to increases of Nat olutside and Kt inside as expected. If instead, you add the ATP to the outside of the membrane, you don't see any change in the ion levels. Why? • ATP acts as an irreversible inhibitor of the Na/K-ATPase if it binds on the exterior side. The active site for...
imumseinratio that can be 2. Calculate the maximum (glucose]out achieved by the plasma membrane Na*-glucose symporter of an epithelial cell when [Na']n 12 mM, [Nalout 145 mM, the membrane potential is -50 mV (inside negative), and the temperature is 37 °C Apical surface Basal surface Intestinal Blood lumen 2 K* Microvili Epithelial cell 3 Na+ Na"K+ ATPas Glucose Glucose Glucose uniporter GLUT2 (facilitates Na -glucose symporter (driven by high extracellular Na I downhill efflux)
imumseinratio that can be 2. Calculate...
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...
Most questions answered within 3 hours.
-
26) Briefly describe, using words or simple diagrams, the
chemiosmotic theory for coupling oxidation to phosphorylation...
asked 1 hour ago -
Suppose that XX is a random variable with mean 16 and standard
deviation 5 . Also...
asked 2 hours ago -
Calculate the number density of argon gas at a temperature of
24C and a pressure of...
asked 5 hours ago -
Alternative
Classification
How to Estimate
Probabilities from Data? ( For continuous Attributes)
And How to generate...
asked 5 hours ago -
An explosion breaks a 20.0-kg object into three parts. The
object is initially moving at a...
asked 6 hours ago -
Calculate the approximate number of residues of Rubisco, which
is involved in carbon fixation in plants,...
asked 7 hours ago -
Other decisions about scientific claims can have a much broader
impact.ENERGYarrow-10x10.png, environment, health, security - all...
asked 8 hours ago -
I need to write a research paper and work cited about this
topic: The United States...
asked 8 hours ago -
Hello! I was wondering if I could have some help?
If the vapor pressure of carvone...
asked 8 hours ago -
An economist wants to estimate the mean per capita income (in
thousands of dollars) for a...
asked 9 hours ago -
What would be the input/output characteristic of a circuit
obtained by putting two of your 2's-complementers...
asked 9 hours ago -
In Drosophila, the transition from the syncytial blastoderm
stage to the cellular blastoderm stage is a...
asked 9 hours ago