Oxidative phosphorylation is the process in which ATP is formed as a result of the transfer of electrons from NADH or FADH 2 to O 2 by a series of electron carriers. This process, which takes place in mitochondria, is the major source of ATP in aerobic organisms (Figure 18.1).
Table of Contents
Is oxidative a phosphorylation?
Oxidative phosphorylation is the process in which ATP is formed as a result of the transfer of electrons from NADH or FADH 2 to O 2 by a series of electron carriers. This process, which takes place in mitochondria, is the major source of ATP in aerobic organisms (Figure 18.1).
Where does phosphorylation occur?
Oxidative phosphorylation takes place in the inner mitochondrial membrane, in contrast with most of the reactions of the citric acid cycle and fatty acid oxidation, which take place in the matrix.
How 36 ATP are produced in aerobic respiration?
Oxygen is joined to the hydrogen ions to make water; this is why oxygen is necessary for aerobic respiration. ETP results in the manufacture of 32 ATPs. Total ATP production from aerobic respiration: 36 ATPs for each glucose that enters glycolysis (2 from glycolysis, 2 from citric acid cycle, 32 from ETP).
Where does phosphorylation occur in photosynthesis?
In eukaryotes, oxidative phosphorylation occurs in mitochondria, while photophosphorylation occurs in chloroplasts to produce ATP.
How many ATP molecules are produced by oxidative phosphorylation?
28 ATP molecules
What does oxidative phosphorylation have in common with photosynthesis?
-Both processes take place in organelles that evolved from prokaryotic cells. Plant cells only undergo photosynthesis and not cellular respiration. Oxidative phosphorylation uses H2O as the initial electron donor, while photosynthesis uses NADH and FADH2.
How much water is produced in oxidative phosphorylation?
two water molecules
What is the net ATP per glucose?
38 ATP
What is the equation of aerobic respiration?
Aerobic respiration is the aerobic catabolism of nutrients to carbon dioxide, water, and energy, and involves an electron transport system in which molecular oxygen is the final electron acceptor. The overall reaction is: C6H12O6 + 6O2 yields 6CO2 + 6H2O + energy (as ATP).
Does oxidative phosphorylation occur in photosynthesis?
Photophosphorylation occurs in the thylakoid membrane of chloroplasts during the light-dependent stage of photosynthesis. Oxidative phosphorylation occurs in the membrane of mitochondrial christae during cellular respiration.
Does phosphorylation occur in photosynthesis?
In the process of photosynthesis, the phosphorylation of ADP to form ATP using the energy of sunlight is called photophosphorylation. In photosynthesis this commonly involves photolysis, or photodissociation, of water and a continuous unidirectional flow of electrons from water to photosystem II.
What is the major difference between aerobic and anaerobic respiration?
There are two types of Respiration: Aerobic Respiration — Takes place in the presence of oxygen. Anaerobic Respiration –Takes place in the absence of oxygen.
Which cells do anaerobic respiration?
In contrast, some living systems use an inorganic molecule as a final electron acceptor. Both methods are called anaerobic cellular respiration, where organisms convert energy for their use in the absence of oxygen. Certain prokaryotes, including some species of bacteria and archaea, use anaerobic respiration.