Describe how a proton pump transforms energy, and how the transformed energy is utilized by membrane...
Homework Answers
Energy transformation in the form of ATP occurs by the formation of proton pump gradient. This gradient is generated when the concentration of protons are comparatively more at one side of the mitochondrial membrane. The FATPase enzyme complex ( a complex of F0 AND F1 subunits) transfer the proton across the membrane and while doing so it adds one phosphate group to ADP to give high energy phosphate ATP. THE membrane transport proteins true channels that are ATP driven to carry out transposon, hence transitioned energy is utilised by transport proteins.
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Describe how a proton pump transforms energy, and how the
transformed energy is utilized by membrane...
V-type proton ATPase (proton pump): a: What type of transport is a V-type proton ATPase (an...
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.
1. Which of the following is not a function of the plasma membrane proton pump? O...
1. Which of the following is not a function of the plasma membrane proton pump? O equalizes the charge on each side of a membrane hydrolyzes ATP produces a proton gradient O generates a membrane potential O stores potential energy on one side of a membrane
Considering that 21.8 kJ/mole of energy is required to transport 1 H+ across the mitochondrial membrane, how much energy is available for proton transport from the oxidation of FADH2? Answer: 131 kJ/m...
Considering that 21.8 kJ/mole of energy is required to transport 1 H+ across the mitochondrial membrane, how much energy is available for proton transport from the oxidation of FADH2? Answer: 131 kJ/mole Please explain!!
how much energy is required to pump proton against pH 2?
how much energy is required to pump proton against pH 2?
Draw/Describe how the Na+/K+ pump functions. Use specific details, present steps in chronological order using a...
Draw/Describe how the Na+/K+ pump functions. Use specific details, present steps in chronological order using a cause/effect - if/then approach: “if ___(cause) occurs, then ____(effect) happens). Include concentrations gradients (before and after), membrane proteins, direction of molecule flow (into/out of, from high to low/low to high, up/down or with/against the gradient). Include any additional details you feel are relevant. What type of transport is this? What is the overall role of the pump?
2 a) Lactose permease uses dissipation of a proton gradient as an energy source to import...
2 a) Lactose permease uses dissipation of a proton gradient as an energy source to import lactose into the cell. How is this achieved? Describe the mechanism. 2 PTS b) Another active transporter is the P-type ATPase SERCA. The transport mechanism of SERCA is quite different from lactose permease. However, here, please describe common features of the transport mechanism of Lactose permease and SERCA (hints: how do the transported substrates cross the membrane? How is it ensured that the energy-consuming...
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...
Describe, with specific detail (step-by-step cause/effect) and drawings, how glucose is transported across the membrane via...
Describe, with specific detail (step-by-step cause/effect) and drawings, how glucose is transported across the membrane via Passive Transport. Include concentrations gradients, membrane proteins, direction of flow and any other details you feel are relevant Name two kinds of proteins that are involved in the movement of glucose into the cell.
How is compartmentalization achieved in eukaryotic cells? Select one: a. Primarily by membrane-bound structures O b....
How is compartmentalization achieved in eukaryotic cells? Select one: a. Primarily by membrane-bound structures O b. Primarily by endosymbiosis O c. Primarily by cellular structures surrounded by protein O d. Primarily be the cytoskeleton, which divides the cell into different domains for different functions. A mutation to DNA polymerase III that eliminated the 3'-to-5' exonuclease activity would prevent: Select one: O a. removal of the RNA primer. O b.removal of base mismatches. O c. addition of dNTPs to a region...
Q2. The Na+/K+ pump and voltage gated K+ channels both transport K+ across the membrane. A)...
Q2. The Na+/K+ pump and voltage gated K+ channels both transport K+ across the membrane. A) Compare and contrast these two mechanisms for K+ transport indicating important functional and structural differences. B) Describe the process for putting a voltage gated K+ channel in the membrane starting at the ribosome and ending at the plasma membrane.
1. Which of the following is not a function of the plasma membrane proton pump? O equalizes the charge on each side of a membrane hydrolyzes ATP produces a proton gradient O generates a membrane potential O stores potential energy on one side of a membrane
2 a) Lactose permease uses dissipation of a proton gradient as an energy source to import lactose into the cell. How is this achieved? Describe the mechanism. 2 PTS b) Another active transporter is the P-type ATPase SERCA. The transport mechanism of SERCA is quite different from lactose permease. However, here, please describe common features of the transport mechanism of Lactose permease and SERCA (hints: how do the transported substrates cross the membrane? How is it ensured that the energy-consuming...
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 compartmentalization achieved in eukaryotic cells? Select one: a. Primarily by membrane-bound structures O b. Primarily by endosymbiosis O c. Primarily by cellular structures surrounded by protein O d. Primarily be the cytoskeleton, which divides the cell into different domains for different functions. A mutation to DNA polymerase III that eliminated the 3'-to-5' exonuclease activity would prevent: Select one: O a. removal of the RNA primer. O b.removal of base mismatches. O c. addition of dNTPs to a region...
Q2. The Na+/K+ pump and voltage gated K+ channels both transport K+ across the membrane. A) Compare and contrast these two mechanisms for K+ transport indicating important functional and structural differences. B) Describe the process for putting a voltage gated K+ channel in the membrane starting at the ribosome and ending at the plasma membrane.
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