How is ATP produced in chloroplasts quizlet?
In chloroplasts, ATP is produced as a result of harvesting energy from light. In chloroplasts, the ATP is used in the fixation of CO2 into sugars. Membrane bound mechanisms – ATP synthase is found in the mitochondrial inner membrane, the chloroplast thylakoid membrane and the inner membrane of eubacteria.
Does ATP production occur in chloroplasts?
Chloroplasts and mitochondria are the major ATP producing organelles in plant leaves.
How much ATP is produced in chloroplasts?
Chloroplast photosystems generate ATP and NADPH during photosynthesis. To fix one CO2 molecule, three ATP molecules and two NADPH molecules (ATP/NADPH = 1.5) are consumed by the Calvin-Benson-Bassham (CBB) cycle (Fig.
How is ATP formed during chemiosmosis?
Chemiosmosis: In oxidative phosphorylation, the hydrogen ion gradient formed by the electron transport chain is used by ATP synthase to form ATP. The turning of this molecular machine harnesses the potential energy stored in the hydrogen ion gradient to add a phosphate to ADP, forming ATP.
How does chemiosmosis produce ATP in mitochondria and in chloroplasts quizlet?
Termed chemiosmosis, the diffusion of hydrogen ions through ATP synthase provides the energy to produce ATP. Chloroplasts generate ATP by chemiosmosis. In this way, electron transport chains transform redox energy to a proton-motive force, potential energy stored in the form of an H+ gradient across a membrane.
How is ATP formed in plants?
Plants, through the process of photosynthesis, make use of the sunlight to energise and generate glucose through the available water and carbon dioxide. This glucose through pathways can be converted into pyruvate. Through cellular respiration, pyruvate in turn gives ATP (adenosine triphosphate).
How is ATP produced in the electron transport chain?
The process of forming ATP from the electron transport chain is known as oxidative phosphorylation. Electrons carried by NADH + H+ and FADH2 are transferred to oxygen via a series of electron carriers, and ATPs are formed. Three ATPs are formed from each NADH + H+, and two ATPs are formed for each FADH2 in eukaryotes.
Which hypothesis best explains the synthesis of ATP in chloroplast?
Chemiosmotic hypothesis
In 1961, Peter Mitchell postulated the Chemiosmotic hypothesis. It explains the mechanism of ATP synthesis within chloroplast during photosynthesis. During the photochemical phase or light reaction, ATP and NADP are generated.