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How does chemiosmosis work? - MyTutor
Chemiosmosis is the method which cells use to create ATP for energy. It works a bit like a water wheel creating power. ATP synthase is like a water wheel in the inner membrane of mitochondria which creates ATP by forcing ADP and phosphate together. It can only do this when there is a flow of hydrogen ions turning its wheel like structure.
Explain how ATP is produced through chemiosmosis during
This is using the energy released by the electrons as they travel through the electron transport chain. In aerobic respiration, chemiosmosis is the process where H + ions diffuse from the intermembrane space of the mitochondrion to the matrix, through the ATP synthase in the inner mitochondrial membrane.
What is chemiosmosis? - MyTutor
What is chemiosmosis? If osmosis is the movement of water across a partially permeable membrane, then chemiosmosis is the same, but for chemicals. Let's consider the mitochondria, which has a double membrane envelope, and let's think of that intermembrane space as the reservoir of a dam.
Outline the processes involved in the generation of ATP ... - MyTutor
Outline the processes involved in the generation of ATP through chemiosmosis (6 marks) Reduced NAD and FAD from the Krebs cycle are re-oxidised in the electron transport chain, situated on the inner mitochondrial membrane.
Explain the concept of 'chemiosmosis' in oxidative ... - MyTutor
The process of chemiosmosis essentially addresses the issue of storing chemical energy into a specific bond. The conversion from chemical energy in the coenzymes, such as NADH and FADH 2 to ATP cannot occur directly. Therefore energy from, NADH -> NAD + + H + + 2e- to phosphorylate ADP + Pi -> ATP, must be transferred through chemiosmosis. What ...
What are the similarities and differences between ... - MyTutor
The chemiosmosis of H+ ions down the concentration gradient through the pores of ATPsynthase then supplies the energy needed to phosphorylate ADP into ATP, which is the primary "energy carrier" in cells.
Outline the process of ATP generation by chemiosmosis.
Outline the process of ATP generation by chemiosmosis. This is a process that occurs on the membrane of the mitochondria. Here the electrons are passed from one electron carrier to the next in a chain know as the electron transport chain.
Describe the role of the thylakoid membrane. | MyTutor
The photosystems (I and II) are embedded within the membrane itself. It is the site of photophosphorylation and the electron transport chain (ETC), which produces ATP for the light-independent reactions of photosynthesis by the chemiosmosis of H+ ions from the thylakoid membrane to the stroma through the ATPase which is embedded in the membrane.
Explain the electron transport chain and chemiosmosis
H+ then move across the membrane creating high H+ concentrations in the inter membrane space, and diffuse back into the mitochondrial matrix down the electrochemical gradient (chemiosmosis). This diffusion causes ATP synthesis. Electrons and H+ combine to form hydrogen atoms which then go on to form water by combining with oxygen,
How is ATP produced in the mitochondria? - MyTutor
A series of redox reactions occur, releasing energy which is used to actively transport protons into the intermembrane space, thereby creating a proton gradient. The chemiosmosis of protons through the stalked particle on the cristae gives the ATP synthase the energy required to catalyse:ADP+Pi=ATP. This is oxidative phosphorylation.