The direct energy source that drives ATP synthesis during respiratory oxidative phosphorylation is oxidation of glucose to CO2 and water. the thermodynamically favorable flow of electrons from NADH to the mitochondrial electron transport carriers. the final transfer of electrons to oxygen.
What is the energy for most ATP synthesis supplied by?
In cellular respiration, the energy for most ATP synthesis is supplied by proton gradient across a membrane. This ultimately implies that, most adenosine triphosphate (ATP) is formed due to the net movement of protons against a concentration gradient in the electron transport chain.
What is the most direct source of energy that is used to convert ADP to ATP?
In chemiosmosis, the most direct source of energy used to convert adp+pi to atp is through oxidative phosphorylation by energy released from movement of protons through atp synthase, down their concentration gradient.
What serves as the most immediate direct source of energy for the production of ATP during oxidative phosphorylation by ATP synthase?
Most of the free energy available from the oxidation of glucose remains in pyruvate, one of the products of glycolysis. In chemiosmotic phosphorylation, what is the most direct source of energy that is used to convert ADP + inorganic phosphate to ATP? … the proton-motive force across the inner mitochondrial membrane.
Which energy source is used to make ATP by oxidative 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).
What energy source drives ATP production?
In general, the main energy source for cellular metabolism is glucose, which is catabolized in the three subsequent processes—glycolysis, tricarboxylic acid cycle (TCA or Krebs cycle), and finally oxidative phosphorylation—to produce ATP.
How do mitochondria make ATP?
Most of the adenosine triphosphate (ATP) synthesized during glucose metabolism is produced in the mitochondria through oxidative phosphorylation. This is a complex reaction powered by the proton gradient across the mitochondrial inner membrane, which is generated by mitochondrial respiration.
How does ATP synthase work?
ATP synthase is a complex which makes use of the proton potential created by the action of the electron transport chain in mitochondria. It transports a proton down the gradient and uses the energy to complete the phosphorylation of ADP to ATP.
What is the relationship between the ETC and oxygen?
Explanation: Oxygen acts as the terminal electron acceptor in the electron transport chain (ETC). This accounts for the reason as to why, when cells are starved of oxygen, the ETC “backs up” and the cell will divert to using anaerobic respiration, such as fermentation.
What is the most direct source of energy?
The substance which is the most direct source of the energy used by an animal cell for the synthesis of materials is Adenosine triphosphate (ATP). ATP, made up of an adenine nucleotide bound to three phosphates, is the molecular currency of transfer of energy within the cell.
What is the energy source for ATP synthase quizlet?
water. ADP. are the source of energy driving prokaryotic ATP synthesis. provide the energy that establishes the proton gradient.
What drives the formation of ATP by ATP synthase quizlet?
gradient provides energy for production of ATP by ATP synthase.