
What is oxidative phosphorylation?
Answer
499.2k+ views
1 likes
Hint: Oxidative phosphorylation is also called electron transport – linked phosphorylation. Its end product is ATP. In addition, it is a part of the cellular respiration process.
Complete answer: Metabolic pathway in which cells use enzymes to oxidize nutrients, thereby releasing the chemical energy stored within in order to produce adenosine triphosphate (ATP) is called oxidative phosphorylation. This process takes place inside the mitochondria of the cell. Oxidative phosphorylation is carried out by almost all aerobic organisms. During the process of oxidative phosphorylation, the transfer of electrons takes place from electron donors to electron acceptors such as oxygen in redox reactions. Energy stored in the relatively weak double bond of oxygen is released during the process of redox reaction which is used to form ATP. A series of protein complexes catalyze these redox reactions within the inner membrane of the mitochondria in eukaryotes. In prokaryotes, these protein complexes are located in the cell's intermembrane space. Adenosine diphosphate (ADP) is converted into adenosine triphosphate using enzyme ATP synthase in a phosphorylation reaction. ATP synthase is also called complex V. It is the final enzyme used in the process of oxidative phosphorylation. Three ATPs are produced by oxidation of one NADH through the process of electron transfer chain.
Note: About of energy is conserved in the form of three ATPs by oxidizing one NADH and the remaining energy is lost as heat. Shortage in oxygen level likely alters ATP production rates as oxygen is essential for oxidative phosphorylation. The process of oxidative phosphorylation produces reactive oxygen species such as superoxide and hydrogen peroxide. These reactive oxygen species lead to the propagation of free radicals, damaging cells and contributing to disease and, possibly, aging.
Complete answer: Metabolic pathway in which cells use enzymes to oxidize nutrients, thereby releasing the chemical energy stored within in order to produce adenosine triphosphate (ATP) is called oxidative phosphorylation. This process takes place inside the mitochondria of the cell. Oxidative phosphorylation is carried out by almost all aerobic organisms. During the process of oxidative phosphorylation, the transfer of electrons takes place from electron donors to electron acceptors such as oxygen in redox reactions. Energy stored in the relatively weak double bond of oxygen is released during the process of redox reaction which is used to form ATP. A series of protein complexes catalyze these redox reactions within the inner membrane of the mitochondria in eukaryotes. In prokaryotes, these protein complexes are located in the cell's intermembrane space. Adenosine diphosphate (ADP) is converted into adenosine triphosphate using enzyme ATP synthase in a phosphorylation reaction. ATP synthase is also called complex V. It is the final enzyme used in the process of oxidative phosphorylation. Three ATPs are produced by oxidation of one NADH through the process of electron transfer chain.
Note: About
Latest Vedantu courses for you
Grade 9 | CBSE | SCHOOL | English
Vedantu 9 CBSE Pro Course - (2025-26)
School Full course for CBSE students
₹37,300 per year
Recently Updated Pages
Master Class 11 Business Studies: Engaging Questions & Answers for Success

Master Class 11 Economics: Engaging Questions & Answers for Success

Master Class 11 Accountancy: Engaging Questions & Answers for Success

Master Class 11 Computer Science: Engaging Questions & Answers for Success

Master Class 11 Maths: Engaging Questions & Answers for Success

Master Class 11 English: Engaging Questions & Answers for Success

Trending doubts
Which one is a true fish A Jellyfish B Starfish C Dogfish class 11 biology CBSE

The flightless birds Rhea Kiwi and Emu respectively class 11 biology CBSE

Difference Between Prokaryotic Cells and Eukaryotic Cells

1 ton equals to A 100 kg B 1000 kg C 10 kg D 10000 class 11 physics CBSE

One Metric ton is equal to kg A 10000 B 1000 C 100 class 11 physics CBSE

1 Quintal is equal to a 110 kg b 10 kg c 100kg d 1000 class 11 physics CBSE
