What is the chloroplast ATP synthase?
The chloroplast ATP synthase catalyzes the light-driven synthesis of ATP and is activated in the light and inactivated in the dark by redox-modulation through the thioredoxin system. It has been proposed that this down-regulation is important for preventing wasteful hydrolysis of ATP in the dark.
Where is ATP synthase located in the chloroplast quizlet?
Membrane bound mechanisms – ATP synthase is found in the mitochondrial inner membrane, the chloroplast thylakoid membrane and the inner membrane of eubacteria.
Do chloroplasts use ATP synthase?
The chloroplast ATP synthase uses the electrochemical proton gradient generated by photosynthesis to produce ATP, the energy currency of all cells.
Where does ATP synthase occur in chloroplasts?
thylakoid membrane
The chloroplast adenosine triphosphate (ATP) synthase is located in the thylakoid membrane and synthesizes ATP from adenosine diphosphate and inorganic phosphate at the expense of the electrochemical proton gradient formed by light-dependent electron flow.
What does ATP synthase do?
ATP synthase is the enzyme that makes ATP molecules. It is a multi-part complex that straddles the inner membrane of mitochondria, the energy factories in cells. The enzyme complex interacts with fatty molecules in the mitochondrial inner membrane, creating a curvature that is required to produce ATP more efficiently.
What is the role of ATP synthase in photosynthesis?
In the electron transport chain of photosynthesis, the ATP synthase complex accomplishes the phosphorylation of ADP to ATP, providing part of the energy for subsequent biosynthesis through the Calvin cycle.
How is ATP produced in chloroplasts?
In an intact chloroplast with thylakoid membranes, ATP is generated by an electron flow along the cytochrome transport system. Since the electrons are being transported to other “carrier” molecules, their energy is used to generate ATP and no reddish glow is emitted.
What is the main difference between mitochondria and chloroplasts quizlet?
what is the difference between mitochondria and chloroplasts? Mitochondria are oxidative metabolic bacteria derivatives and chloroplasts are photosynthetic bacteria derivatives.
How do chloroplasts generate ATP?
All electron-transport processes occur in the thylakoid membrane: to make ATP, H+ is pumped into the thylakoid space, and a backflow of H+ through an ATP synthase then produces the ATP in the chloroplast stroma.
What is ATP synthase in photosynthesis?
ATP synthase is a protein that catalyzes the formation of the energy storage molecule adenosine triphosphate (ATP) using adenosine diphosphate (ADP) and inorganic phosphate (Pi). It is classified under ligases as it changes ADP by the formation of P-O bond (phosphodiester bond). ATP synthase is a molecular machine.
What is ATP synthase quizlet?
ATP synthase is the enzyme that makes ATP by chemiosmosis. It allows protons to pass through the membrane using the kinetic energy to phosphorylate ADP making ATP. The generation of ATP by chemiosmosis occurs in chloroplasts and mitochondria as well as in some bacteria.
How is ATP produced in the chloroplast?
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Why is ATP important part of the chloroplasts?
Light Dependent. CO2 and H2O enter the leaf.
Is ATP produced in mitochondria and chloroplasts?
The bulk of ATP synthesis in plants is performed by ATP synthase, the main bioenergetics engine of cells, operating both in mitochondria and in chloroplasts.
What are sac like photosynthetic membranes in chloroplasts?
saclike photosynthetic membrane found in chloroplasts photosystem light-collecting units of the chloroplast stroma region outside the thylakoid membranes in chloroplasts NADP+ (nicotinamide adenine dinucleotide phosphate) one of the carrier molecules that transfers high-energy electrons from chlorophyll to other molecules light-dependent reactions