Bissoy.com
Doctors Medicines MCQs Q&A

The number of ATP molecules produced by electron transport system from Krebs cycle intermediates in a single turn is

The number of ATP molecules produced by electron transport system from Krebs cycle intermediates in a single turn is Correct Answer 12

The number of ATP molecules produced by the electron transport system from Krebs cycle intermediates in a single turn is 12.
The tricarboxylic acid (TCA) cycle, also known as the Krebs or citric acid cycle, is the main source of energy for cells and an important part of aerobic respiration.
The cycle harnesses the available chemical energy of acetyl coenzyme A (acetyl CoA) into the reducing power of nicotinamide adenine dinucleotide (NADH).
3 molecules of ATP are synthesized when one molecule of NADH2 is oxidized and 2 molecules of ATP are synthesized when one molecule of FADH2 is oxidized. Thus the total ATP produced on oxidation of reduced coenzymes produced in one turn of the Krebs cycle are (3 × 3 NADH2) + (2 × 1 FADH2) + 1 ATP = 12 ATP molecules.

Related Questions

Which of the following are true with regard to anaerobic respiration in bacteria?
P. The final electron acceptor is an inorganic substance other than molecular oxygen.
Q. The number of ATP molecules produced per glucose molecule is more than that produced in aerobic respiration.
R. The number of ATP molecules produced per glucose molecule is less than that produced in aerobic respiration.
S. Only substrate level phosphorylation is used to generate ATP.
Out of 38 ATP molecules produced per glucose, 32 ATP molecules are molecules are formed from NADH/FADH2 in
Study the given information carefully and answer the question given below: Shikhar walked 18 km towards east, took right turn and walked 20 km. He then took a left turn and walked 25 km. Then, he took a left turn walked 20 km. Then, he took a right turn and walked 10 km. then, he took a left turn and walked 24  km. Finally he took a left turn and walked 35 km. How far was he from the starting point?
How many ATP molecules are produced per Krebs’ Cycle in eukaryotes?
The numbers of ATP molecules produced during glycolysis, during oxidation of pyruvic acid to acetyl CoA and during the Krebs cycle are, respectively,
Statement I Two ATP molecules are produced during anaerobic respiration.
Statement II Glucose is converted into pyruvic acid through a series of reaction with a net gain of 2 ATP molecules.
Which of the following are the properties of an electron? 1) Electron is a constituent of cathode ray 2) Electron is a negatively charged particle 3) The mass of the electron is equal to the mass of the proton 4) Electron is deflected by the electric field but not by magnetic field Select the correct answer using the code given below:
The number of ATP produced by Acetyl Co A in one Krebs cycle is
Consider the following two-process synchronization solution. Process 0 - - - - - - - - Entry: loop while (turn == 1);  (critical section) Exit: turn = 1; Process 1 - - - - - - - - Entry: loop while (turn == 0);  (critical section) Exit: turn = 0;   The shared variable turn is initialized to zero. Which one of the following is TRUE?
Find the velocity of an electron when its kinetic energy is equal to one electron volt (in 105m/s). Given charge of an electron e = 1.6 x 10-19 and mass of an electron m = 9.1 x 10-31.