Include the reactants and the products. Where does it occur? Light reaction is the changing of solar energy to chemical energy. Light and H2O is absorbed and ATP, NADH and O2 is the result. This all happens within the chloroplast.
An example of an anabolic reaction is photosynthesis where small molecules are built up into larger ones using energy. ATP is built up from ADP and inorganic phosphate ions (3-4 PO, abbreviated to Pi) by condensation and is then hydrolysed by the enzyme ATPase to ADP and Pi to release energy that can be used for energy requiring reactions such as photosynthesis in plants. Plants are able to produce ATP during the light dependent reaction of photosynthesis in the thylakoid of the chloroplast. Red and blue wavelengths of light are absorbed by chlorophyll in chloroplasts on Photosystem II. The chloroplasts are protected and contained by a membrane, but they are close to the surface of the cell to catch the maximum amount of light.
Describe how the storage of molecules is broken down and used to produce ATP. The process of ATP formation occurs when you inhale or exhale. In this cycle beta oxidation occurs causing fatty acids to be broken down into two carbons which forms
It splits in to two 3-carbon molecules The 3-carbon molecules are converted to pyruvate . What happens to the electrons in this reaction? What two molecules are formed? They are transferred to the coenzyme NAD+ to form NADH and ATP is formed What happens to the pyruvate under aerobic conditions? The pyruvate is garter oxidized to yield more ATP What happens to the pyruvate under anaerobic conditions?
Electrons can now continue to move through PSII and the cytochrome b6 f complex, and oxygen is produced in the water-splitting reaction. 34. Bioenergetics of Photophosphorylation The steady-state concentrations of ATP, ADP, and Pi in isolated spinach chloroplasts under full illumination at pH 7.0 are 120.0, 6.0, and 700.0 mM, respectively. (a) What is the free-energy requirement for the synthesis of 1 mol of ATP under these conditions? (b) The energy for ATP synthesis is furnished by light-induced electron transfer in the chloroplasts.
In leaves, photosynthesis involves the photolysis of water, a process that involves the attachment of two electrons to a magnesium ion in chlorophyll and the production of hydrogen ions from the breakdown of water. Together with the electrons, the hydrogen ions are used to reduce NADP in the light-dependent reaction in the thylakoid. The hydrogen
One example of where this would occur is glucose absorption into the blood. In active transport, once molecules have bound to carrier proteins, ATP binds to the protein and is broken into ADP and Pi. This provides energy for the protein molecule to change shape and open to the other side of the membrane. This moves molecules against the concentration gradient. ADP and Pi then recombine and cause the protein to revert back to its original shape.
5. If you isolate mitochondria and place them in buffer with a low pH they begin to manufacture ATP. Why? * B. The high external acid concentration causes an increase in H+ in the inter membrane space leading to increased ATP production by ATP
NADP is reformed and goes back to light dependent reaction to be reduced again by accepting more H+ ions. Most triose phosphate molecules are used to regenerate ribulose bisphosphate using ATP from light dependent reaction. This is cyclic as RUBP is reformed to combine with a new CO2
For this to happen, actomyosin cross-bridges form between the actin and myosin. Once activates by calcium ions, the enzyme ATPase then hydrolyses ATP to ADP and Pi releasing energy which moves the myosin head to the side, pulling the actin filament along in a kind of rowing action. ATP also provides the energy to break the acto-myosin cross bridge so the myosin head detaches from the actin filament after its