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The pigment molecules and electron transport chains involved in the light-dependent reactions of photosynthesis are embedded in the thylakoid membrane. As energy is released from electrons traveling through the chain of acceptors, it is used to pump protons (that is, H+ ions) from the stroma of the chloroplast across the thylakoid membrane and into the center of the thylakoid. Thus, protons accumlate within the thylakoids, lowering the pH of the thylakoid interior and making it more acidic. A proton gradient possesses potential energy that can be used to form ATP.
Protons are prevented from diffusing out of the thylakoid because the thylakoid membrane is impermeable to protons except at certain points bridged by an enzyme called ATP synthase. This protein extends across the thylakoid membrane and forms a channel through which protons can leave the thylakoid. As the protons pass through ATP synthetase, energy is released, and this energy is tapped by ATP synthase to form ATP from ADP and inorganic phosphate. The coupling of ATP synthesis to a protein gradient formed by energy released during electron transport is called chemiosmosis.
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∙ 9y ago
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∙ 11y agoATP synthase catalyzes the formation of ATP during electron transport in the light reactions of photosynthesis.
7sxws
It allows hydrogen ions out of the thylakoid. (Apex)
Melvin Bayer
Wilton Blanda
Matt Lopez
it allows hydrogen ions out of the thylakoid. apex
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What enzyme helps produce ATP in light reaction?
In plants and algae, the enzyme RUBISCO helps with photosynthesis.
When ATP synthase in activated it adds a phosphate group to what molecule?
ATP synthase catalyzes the addition of a phosphate group to an ADP molecule. ADP + ATP synthase + P --> ATP + ATP synthase (ATP synthase on both sides of the equation indicates that, as an enzyme, it is not used up in the reaction.)
Do chloroplast synthesize ATP?
Chloroplasts produce glucose by photosynthesis. glucose is used to generate ATP
What are enzymes that creates ATP called?
ATP Synthase
How does ATP synthase produce ATP-?
Hydrogen ions flow back down their gradient through a channel in an ATP synthase. The ATP synthase harnesses the proton-motive force to phosphorylate ADP, forming ATP.Read more: How_does_chemiosmosis_produce_ATP
What is the role synthase in photosynthesis?
to produce ATP for the calvin cycle
What is the role of ATP synthase in the Krebs cycle?
i dont now
What is the role of ATP synthase in the Krebs cycles?
i dont now
What powers the ATP synthase enzyme in the light-dependent reactions of photosynthesis?
Photosynthesis is the process that plants convert solar energy into the energy stored in chemical bonds. This consists of two reactions, light dependent and light independent.
What enzyme helps produce ATP in light reaction?
In plants and algae, the enzyme RUBISCO helps with photosynthesis.
What do the processes of photosynthesis and cell respiration have in common?
photosynthesis and cellular respiration can smd.
What is the role of atp sythase in photosynthesis?
The hydrogen ions pumped across the innermembrane into the thylacoid space fall down the electrochemical gradient through the ATP synthase where ADP is phosphorylated into ATP which is then used in the Calvin cycle rearrangements of carbon fixed intermediates to produce the gyceraldehyde-3-phosphate sugar the plants need. Simplified explanation.
When ATP synthase in activated it adds a phosphate group to what molecule?
ATP synthase catalyzes the addition of a phosphate group to an ADP molecule. ADP + ATP synthase + P --> ATP + ATP synthase (ATP synthase on both sides of the equation indicates that, as an enzyme, it is not used up in the reaction.)
Do chloroplast synthesize ATP?
Chloroplasts produce glucose by photosynthesis. glucose is used to generate ATP
Role of ATP synthase?
ATP synthase is a protein that synthesizes adenosine diphosphate (ADP) and an extra phosphate together into adenosine triphosphate (ATP). ATP is a very crucial molecule in body chemistry, and its primary function is to serve as an energy source for the vast majority of cellular functions. Therefore, the role of ATP synthase is to provide the energy that keeps cells functioning.
Which of the following best describes the direct mechanism of ATP production during photosynthesis?
Protons are pumped across the thylakoid membrane, where they flow back through ATP synthase which synthesizes ATP.
What spins to provide energy for adding a phosphate group to ADP?
The rotor part of the ATP synthase enzyme.
