the preparatory reaction is the conversion of pyruvate to acetyl CoA by the pyruvate dehydrogenase, during this reaction NAD+ is reduced to NADH and this reaction occurs in the mitochondrial matrix.
so the answer is
NAD+ goes to NADH+ H+ as acetyl CoA forms.
( this is hthe reaction whcih connetc glycolyss ot TCA cycle the producet of glycolysis is converted to acetyl CoA which is used in the TCA cycle)
Question 26 1 pts Which is a correct statement about the preparatory reaction? It connects glycolysis...
In glycolysis, one glucose molecule yields pyruvates, ATP and NADH. Depending on the system used to shuttle the electrons from NADH into mitochondria, these NADH become NADH or FADH2. Converting the pyruvate(s) into acetyl-CoA's produces 2 NADH. One pyruvate/Two pyruvates pass(es) through the citric acid cycle starting with acetyl-CoA produces GTP, FADH2, and NADH. In the electron transport chain, each FADH2 generates ATP and each NADH ATP.
What is the reducing agent (or electron donor) in the following reaction? Pyruvate + NADH + H^+ rightarrow Lactate + NAD^+ A. oxygen B. NADH+H^+ C. NAD^+ D. lactate E. pyruvate Reactants capable of interacting to form products in a chemical reaction must first overcome a thermodynamic barrier known as the reaction's A. entropy B. heat content. C. activation energy. D. endothermic level. E. free-energy content. What does the chemiosmotic process in mitochondria involve? A. establishment of a proton gradient...
Question 3 1 pts How many of the molecules below are products of glycolysis? ATP ADP NADH Pyruvate Acetyl-CoA CO2 FADH2 Water Oxygen Glucose FADH NAD
Select ALL of the statements that correctly describe the Krebs cycle. A. Pyruvic acid must be converted to acetyl CoA prior to entering the cycle B. The molecule oxaloacetic acid picks up the acetyl group from acetylCoA, and in the last step of the cycle, oxaloacetic acid is regenerated. C. Electrons removed during oxidation steps are picked up by NAD or FAD. D. Each turn of the cycle generates one ATP molecule for a total of two per molecule of...
1) Regarding the products and reactants in glycolysis (Choose All) A) although 4 ATPs are synthesized for every glucose molecule, there is a net gain of only 2 ATPs/glucose B) ATP is both a reactant and a product C) NAD+ is a product; NADH is a reactant D) glucose is a reactant that is converted to 2 pyruvate products 2) Glycolysis...(Choose All) A) is anaerobic; no oxygen is required B) is probably the most widespread metabolic pathway among organisms C)...
PRE-KREBS/TRANSITION PHASE: In the absence of oxygen the luyunde molecules from glycolysis are converted to lactic acid. If oxygen is present, they are instead converted into 2 molecules of _which then enter the mitochondria to undergo anaerob metabolism. During this transition phase, no ATP is produced but are released. and Mitochoadrial CITRIC ACID CYCLE: The citric acid cycle occurs in the matrix Both of the molecules of Adel produced after glycolysis run through the citric acid cycle reactions. At the...
D Question 19 2 pts Which of the following statements best describes the primary role played by oxygen in cellular respiration? It yields energy in the form of ATP as it is passed down the electron transport chain. It serves as an acceptor for carbon, forming CO2 in the citric acid cycle. It oxidizes glucose to form two molecules of pyruvate. It serves as the final acceptor for electrons from the electron transport chain. Question 20 2 pts Which of...
Catabolism can be considered to be the sum of stages. Question 1 options: 1 2 3 4 Question 2 (0.5 points) Glycolysis is the name of the process that converts glucose to . Question 2 options: lactate pyruvate carbonate acetyl Question 3 (0.5 points) Re-read 24.4A, if necessary, for this question. Consider the oxidation of pyruvate by in the presence of Coenzyme A and a dehydrogenase enzyme: Although oxygen is not needed for this specific reaction, oxygen IS needed to...
This is a biochemistry question i need answers to 6-12
What is the purpose of fermentation of pyruvate to lactate or ethanol? to produce additional ATP to provide a precursor for lactose synthesis to regenerate NAD* for glycolysis to prevent pyruvate from entering the TCA cycle none of the above Pyruvate kinase catalyzes what reaction? conversion of phosphoenol-pyruvate to pyruvate phosphorylation of pyruvate to 3-phosphoglycerate conversion of pyruvate to acetaldehyde and CO_2 conversion of pyruvate to lactate conversion of pyruvate...
2 NAD NADII and FAD/TADHa s bo (a) function as coenaymes b) ageats to anfer elesrons in beokugical oxidalion reduction reactions a source of energy in the comunon casabolic pathway (d) function as an agent to transfer 26 The final product of the common catabolic pathway ts aHO (b) ATP () NAD () co, (e all of these (a. b, c and d) 27. The molecule used by the body to transfer and store energy is (a) NAD (b) ATP...