How is the H+-ATPase so important for nutrient transport across the plasma membrane?
The proton-pump H+-ATPase of the plant plasma membrane acts as a primary transporter by pumping protons out of the cell, thereby creating pH and electrical potential differences across the plasma membrane. Mineral absorption from the soil can occur against concentration gradients which relies upon the energy provided by the electrochemical gradient created across the plasma membrane It helps in the transport of many solutes (ions, metabolites, etc.). The H+-ATPase-dependent electrochemical gradient also confers the energy necessary for the transport of organic compounds
HOPE MY ANSWER HELP YOU
ALL THE BEST
How is the H+-ATPase so important for nutrient transport across the plasma membrane?
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
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.
Plant cells have a vacuole membrane-associated H+ ATPase that pumps protons out of the cytosol and into the lumen of the vacuole in order to acidify this organelle. What would you expect be the net effect of this pump on the resting membrane potential across the PLASMA MEMBRANE (charge in the cytosol) in plant cells? A. The membrane potential is not affected by H+ transport. B. The membrane potential would become more positive. C. The membrane potential would become more...
Consider the transport of Naº and K across the cell membrane by the NaK ATPase. A cell membrane generally is polarized with the inside negative. The following are all components used t calculate AG. Which of these components contributes to a more spontaneous AG? O RT In([Naou] /[Na inj) ORT IN([K]2/[koud) Z Na FAY ZiK FAY
The plasma membrane is very important to the cell. a. Draw and describe the structure and function of the plasma membrane. b. What is the chemical explanation for the structure of the plasma membrane? c. Diagram and four different transport mechanisms across the membrane, and then compare and contrast the benefits and drawbacks of each mechanism to the cell:
1. How can the operation of the plasma membrane H+-ATPase affect (a) the diffusion of K+ through membrane channels, and (b) the accumulation of sugars from the apoplast into the cell? 2. There is current concern that the level of CO2 is increasing in the biosphere due to the burning of fossil fuels. If the level of atmospheric CO2 were to double, how would photosynthetic rates of C3 plants be affected? 3. Nuclear encoded chloroplast proteins are synthesized in the...
Describe how inhibition of the plasma membrane Na/K ATPase affects Glucose absorption:
Exocytosis is a type of cellular transport that allows materials to move across the plasma membrane of a cell. Which of the statements describe properties of exocytosis? Exocytosis uses membrane channel proteins to import materials into the cell. Exocytosis is the primary method of transporting large molecules out of the cell. Exocytosis is the primary method of transporting large molecules into the cell. Exocytosis engulfs materials into the cell through the pinching off of a vesicle from the plasma membrane....
2. A) List and briefly discuss the different types of movement of Na+ across the plasma membrane of a neuron (or a typical cell). B) EXPLAIN why inhibiting the sodium/potassium transport pump in neurons will not have an immediate effect on the membrane potential. C) Over time the membrane will depolarize if the “pump” is blocked – explain how this ATPase creates an “electrogenic” effect.
V-type proton ATPase (proton pump): a: What type of transport is a V-type proton ATPase (an integral membrane protein) uses ATP directly to transport protons across the membrane ? (PRIMARY OR SECONDARY) b: With the understanding of sodium-potassium pump, describe how a proton pump would use ATP to move protons against their concentration gradient (out of the cell) ? please do not say energy.