Which part of the cellular respiration produces the most NADH quizlet?

The Kreb’s cycle produces the most NADH. It produces 3 per turn which translates into 6 per glucose molecule.

What produces the majority of NADH?

The majority of NADH produced during the oxidation of glucose (in the presence of oxygen) is generated during glycolysis.

Where are NADH produced?

NADH is produced in glycolysis and in the conversion of lactate (Lac) to pyruvate (Pyr) via lactate dehydrogenase (LDH). The reducing equivalents from NADH are transferred via the malate aspartate shuttle to be oxidized via electron transport to support oxidative phosphorylation.

What part of cellular respiration produces the most ATP?

The Krebs cycle takes place inside the mitochondria. The Krebs cycle produces the CO2 that you breath out. This stage produces most of the energy ( 34 ATP molecules, compared to only 2 ATP for glycolysis and 2 ATP for Krebs cycle).

Which metabolic pathway produces the most NADH quizlet?

citric acid cycle and respiratory chain produce the most energy in cellular respiration. pyruvate oxidation—the portion of the pathway that releases the smallest amount of energy. citric acid cycle—the portion of the pathway that generates the most NADH.

How many NADH are produced in cellular respiration?

net yield of 2 NADH per glucose (NADH is nicotine adenine dinucleotide, a co-enzyme that serves as a carrier for H+ ions liberated as glucose is oxidized.)

What is NADH in cellular respiration?

NADH: High energy electron carrier used to transport electrons generated in Glycolysis and Krebs Cycle to the Electron Transport Chain.

Is NADH a substrate or product in cellular respiration?

Finally, in the electron transport chain stage of cellular respiration, NADH, FADH2, ADP, and phosphate are the substrates and the resulting products are NAD, FAD, and ATP.

Where is NADH produced glycolysis?

Glycolysis generates ATP through substrate-level phosphorylation, and it also generates NADH. This NADH will travel into the mitochondria where it will donate its electrons into the electron transport chain.

How many ATP are produced from 1 NADH?

Inside the mitochondria, one molecule of NADH is equivalent to 3 ATP. Note: NADH generated in the cytoplasm during glycolysis must be transported across the mitochondrial membrane before it can transfer electrons to the electron transport chain and this requires energy.

Where does the NADH from glycolysis go?

In the process of glycolysis, NAD+ is reduced to form NADH + H+. If NAD+ is not present, glycolysis will not be able to continue. During aerobic respiration, the NADH formed in glycolysis will be oxidized to reform NAD+ for use in glycolysis again.

What is Chemiosmosis in cellular respiration?

Chemiosmosis is the movement of ions across a semipermeable membrane bound structure, down their electrochemical gradient. An important example is the formation of adenosine triphosphate (ATP) by the movement of hydrogen ions (H+) across a membrane during cellular respiration or photosynthesis.

What happens to the NADH produced in glycolysis quizlet?

Glycolytic NADH undergoes a reoxidation back to NAD+ in order to provide a an electron acceptor foor Glyceraldehyde 3-P dehydrogenase. Thhis will prevent feddback inhibition, Glycolysis cannot continue without the oxidation of NADH.

How is NADH formed?

In glycolysis and the Krebs cycle, NADH molecules are formed from NAD+. Meanwhile, in the electron transport chain, all of the NADH molecules are subsequently split into NAD+, producing H+ and a couple of electrons, too.

Why does NADH produce more ATP?

FADH2 produces less ATP then NADH because NADH has more energetic electrons. … FADH2 produces less ATP then NADH because NADH is reduced more. FADH2 produces less ATP then NADH because FADH2 produces a larger proton gradient.

What compound receives electrons from NADH?

The NADH dehydrogenase complex (generally known as complex I) is the largest of the respiratory enzyme complexes, containing more than 40 polypeptide chains. It accepts electrons from NADH and passes them through a flavin and at least seven iron-sulfur centers to ubiquinone.

What does chemiosmosis produce?

Chemiosmosis is used to generate 90 percent of the ATP made during aerobic glucose catabolism. The production of ATP using the process of chemiosmosis in mitochondria is called oxidative phosphorylation.

Which of the following statements best explains why NADH produces more ATP per molecule than a molecule of FADH?

Which statement best explains why more ATP is made per molecule of NADH than per molecule of FADH2? Fewer protons are pumped across the inner mitochondrial membrane when FADH2 is the electron donor than when NADH is the electron donor.

Why does 1 NADH make 2.5 ATP?

When electrons from NADH move through the transport chain, about 10 H +start superscript, plus, end superscript ions are pumped from the matrix to the intermembrane space, so each NADH yields about 2.5 ATP.

Why does NADH produce more ATP than FADH2 quizlet?

FADH2 produces fewer ATP molecules than NADH when it passes its electrons down the electron transport chain because FADH2 only activates 2 proton pumps, while NADH activates 3 proton pumps.

Which of the following statements best describes the role of NAD NADH in glycolysis?

Which of the following statements best describes the role of NAD+/NADH in glycolysis? A NADH is used to produce energy by directly creating the phosphoanhydride bonds in ATP.