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How does the structure of the chloroplast enable it to build up a concentration gradient of protons?
Wiki User
∙ 12y ago
The membrane inside the thylakoid of the chloroplast pumps H+ ions from the outside compartment (stroma) to the inside (lumen). This builds the gradient. The electrons are pumped using energy released from a high energy electron which was energized through light absorption. This electron comes from the breakdown of water.
Wiki User
∙ 16y ago
Wiki User
∙ 13y agoThe membrane inside the thylakoid of a chloroplast pumps H+ ions from the stroma to the lumen. This builds the gradient. The electrons are pumped using energy released from a high energy electron which was energized through light absorption. This electron comes from the breakdown of water.
Wiki User
∙ 12y agowhen the membrane inside the thylakoid of a chloroplast pumps h+ ions from the outside (stroma) to the inside (lumen), it builds the gradient.
Read more: How_does_the_structure_of_a_chloroplast_enable_it_to_build_up_a_concentration_gradient_of_protrons
Wiki User
∙ 13y agowhen the membrane inside the thylakoid of a chloroplast pumps h+ ions from the outside (stroma) to the inside (lumen), it builds the gradient.
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What happens to the extra energy in excited electrons as they pass along an electron trandsport chain in a chloroplast?
The energy is used to supply electron carriers and to pump protons into the stroma so they can come down their concentration gradient through an ATP-synthase and synthesize ATP.
The process that relies on a concentration gradient of protons?
Chemiosmosis, the diffusion of hydrogen ions on a selectively permeable membrane.
What type of ion is built into gradient so ATP synthase can work?
H+ ions (protons) are built into a gradient.
What does chemiosmosis provide for making ATP?
Protons released into the membrane travel through the proton gradient. Then thorugh the ATP synthase, the proteins are pumped out. Through phospholyration, ADPistranformed into ATP.
What will most likely happen if a toxin causes the hydrogen ion pump to stop moving H ions outside the mitochondrial membranes of the bird's cells?
Then there will be no build up of protons in the outer lumpen of the mitochondria. Without a heavy concentration of hydrogen ions ( protons ) there there will be no moment of hydrogen ions down their concentration gradient through the ATPase pump and no ATP generated.
How does the structure of chloroplast enables it to build up a concentration gradient of protons?
The membrane inside the thylakoid of the chloroplast pumps H+ ions from the outside compartment (stroma) to the inside (lumen). This builds the gradient. The electrons are pumped using energy released from a high energy electron which was energized through light absorption. This electron comes from the breakdown of water.
The generation of ATP by the movement of protons down their concentration gradient occurs in?
Cellular respiration.
Explain how the light reactions would be affected if there were no concentration gradient of protons across the thylakoid membrane?
The concentration gradient of protons is potential energy and is harnessed by an enzyme called ATP synthase. ATP synthase converts the potential energy of the proton concentration gradient into chemical energy stored in ATP (the process is called chemiosmosis). So without the protons, no ATP would be made, and therefore no light reaction would occur.
The actual transport of protons by the proton pump is mediated by a transmembrane protein which undergoes a change in its?
If the protein is pumping protons, there should be an electrical gradient across the membrane as well as a proton concentration gradient.
What is chemeosmosis?
phosphorylation of ADP to ATP occurring when protons that follow a concentration gradient contact ATP synthase.
What happens to the extra energy in excited electrons as they pass along an electron trandsport chain in a chloroplast?
The energy is used to supply electron carriers and to pump protons into the stroma so they can come down their concentration gradient through an ATP-synthase and synthesize ATP.
The energy released in the mitochondrial electron transport chain is used to transport protons into the?
matrix. to create a concentration gradient
What is the primary objective of the electron transport chain?
To provide the motive force that pumps protons into the outer lumen of the mitochondria. Where the protons will fall down their concentration gradient through the ATP synthase and generate ATP.
The process that relies on a concentration gradient of protons?
Chemiosmosis, the diffusion of hydrogen ions on a selectively permeable membrane.
How does the concentration gradient of h plus ions help to make ATP?
A concentration gradient is a representatinve of energy storage. ATP the energy currency of the cell will require this conc. gradient for its formation. HIgher the conc. gradient the higher will be the stored energy and high the no of ATP can be formed.
What is the effect of ammonium chloride to chloroplast?
NH3 enters the thylakoid lumen and eats the protons, by binding them it and decreases the proton gradient compared to the outside of the lumen. This "uncouples" the proton motive and reduces ATP synthesis
What event contributes directly to the creation of a proton gradient across the thylakoid membrane?
the flow of electrons through electron transport chain II
