Where does chemiosmotic ATP synthesis occur in photosynthesis?
mitochondria
Does photosynthesis produce ATP by chemiosmosis?
Chemiosmosis occurs in mitochondria during cellular respiration and in chloroplasts during photosynthesis. Both of these processes generate ATP.
What happens during chemiosmosis in photosynthesis?
The ions flow through ATP synthase from the thylakoid space into the stroma in a process called chemiosmosis to form molecules of ATP, which are used for the formation of sugar molecules in the second stage of photosynthesis.
What is synthesis of ATP by the chemiosmotic mechanism?
ATP Production by Chemiosmosis: These protons can move through the membrane down their concentration gradient through ATP synthase, which then uses the energy of the proton motive force to make ATP from ADP and inorganic phosphate. This chemiosmotic mechanism of ATP production is called oxidative phosphorylation
What part of photosynthesis is chemiosmosis?
stroma
How does chemiosmosis happen in photosynthesis?
During photosynthesis, chemiosmosis occurs in the chloroplasts, whereas during respiration, chemiosmosis occurs in the mitochondria. Due to chemiosmosis, there is a development of proton gradient across the semipermeable cell membrane, which couples with the synthesis of ATP molecules.
What is Chemiosmotic ATP synthesis?
Chemiosmosis is the diffusion of ions across a selectively-permeable membrane. 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.
What happens during Chemiosmotic synthesis of ATP in photosynthesis?
During chemiosmotic synthesis of ATP in photosynthesis : (A) The protons accumulate in the intermembrane of space chloroplast (B) The proton gradient is not required. The protons accumulate in the (C) intermembrane space of mitochondrion. (D) The protons accumulate within the lumen of the thylakoids.
Can ATP be produced by chemiosmosis?
Chemiosmosis is used to generate 90 percent of the ATP made during aerobic glucose catabolism. The production of ATP using the process of chemiosmosis in mitochondria is called oxidative phosphorylation.
Does photosynthesis use chemiosmosis?
Chemiosmosis occurs in mitochondria during cellular respiration and in chloroplasts during photosynthesis. Both of these processes generate ATP.
How is ATP formed in photosynthesis?
This is accomplished by the use of two different photosystems in the light reactions of photosynthesis, one to generate ATP and the other to generate NADPH. Electrons are transferred sequentially between the two photosystems, with photosystem I acting to generate NADPH and photosystem II acting to generate ATP.
Do chloroplasts use chemiosmosis to produce ATP?
Chloroplasts generate ATP by chemiosmosis. Built into the same membrane is an ATP synthase complex that couples the diffusion of hydrogen ions down their gradient to the phosphorylation of ADP. In chloroplasts, the high-energy electrons dropped down the transport chain are extracted from water.
What happens during chemiosmosis?
During chemiosmosis, the free energy from the series of reactions that make up the electron transport chain is used to pump hydrogen ions across the membrane, establishing an electrochemical gradient. The production of ATP using the process of chemiosmosis in mitochondria is called oxidative phosphorylation.
Is chemiosmosis part of photosynthesis?
So, chemiosmosis occurs during cellular respiration, but did you know it also happens during photosynthesis (the process of converting light energy into chemical energy)? In this case, chemiosmosis occurs in the organelle responsible for processing light energy, called the chloroplast.
What happens first in chemiosmosis?
Chemiosmosis is involved in the production of adenosine triphosphate (ATP), which is the main molecule used for energy by the cell. First, the molecules NADH and FADH2, obtained from the citric acid cycle, pass electrons down an electron transport chain, which releases energy.
What happens during chemiosmosis quizlet?
What happens during chemiosmosis? During chemiosmosis hydrogen ions accumulate in the thylakoid membranes, protons move from high to low concentration.move through ATP synthase, make ATP. During light reactions NADPH and ATP are made which provides enough energy to start the Calvin Cycle.
