Which of the following coenzymes participate in the reactions of the pyruvate dehydrogenase complex?

1) thiamine pyrophosphate
2) lipoic acid
3) FAD
4) NAD+
5) CoA

Solutions

Expert Solution

The preparation of pyruvate is not a step in aerobic respiration.

Dr. OWL answered 3 years ago

Next > < Previous

Related Solutions

Briefly explain the steps by which the pyruvate dehydrogenase complex converts pyruvate to acetyl CoA and...

Briefly explain the steps by which the pyruvate dehydrogenase complex converts pyruvate to acetyl CoA and deposits it in the mitochondrial matrix. What cofactors are used, what are the products formed? How is the complex activity regulated?

Which pathway reduces the most NAD+? 1. Glycolysis 2. Pyruvate Dehydrogenase Complex 3. Both Pyruvate Dehydrogenase...

Which pathway reduces the most NAD+? 1. Glycolysis 2. Pyruvate Dehydrogenase Complex 3. Both Pyruvate Dehydrogenase Complex & Glycolysis are the same as each other but greater than fermentation 4. Fermentation

Compare the Pyruvate Dehydrogenase Complex to the Branched Chain Ketoacid Dehydrogenase Complex. How are they similar...

Compare the Pyruvate Dehydrogenase Complex to the Branched Chain Ketoacid Dehydrogenase Complex. How are they similar and different in terms of functionality and nutrient requirements l. What organic acids are elevated when there is insufficient activity of the Pyruvate Dehydrogenase Complex (PDC) vs the Branched Chain Ketoacid Dehydrogenase Complex (BCKDC)? (Make sure to understand the difference between BKCDC and BCAA transaminase. These are two completely different enzymes in the BCAA degradation pathway) 1 point

Pyruvate dehydrogenase complex catalyzes the conversion of pyruvate to acetyl CoA. In this reaction, five cofactors...

Pyruvate dehydrogenase complex catalyzes the conversion of pyruvate to acetyl CoA. In this reaction, five cofactors (a) thiamine pyrophosphate; (b) nicotine adenine dinucleotide (NAD+); (c) acetylCoA; (d) flavin adenine dinucleotide (FAD); and (e) lipoamide participate at various steps of the reaction. Explain the role of each cofactor in this reaction. You must use the chemical structures and electronic properties of the intermediates to justify your answers.

The pyruvate dehydrogenase complex catalyzes the reaction pyruvate → acetyl-CoA (Reaction 0 in the TCA cycle)....

The pyruvate dehydrogenase complex catalyzes the reaction pyruvate → acetyl-CoA (Reaction 0 in the TCA cycle). It is activated by AMP, CoA and NAD+, but it is inhibited by ATP, acetyl-CoA and NADH. What is the biochemical logic of this regulatory mechanism of the citric acid cycle? (In your response, be sure to address why specific molecules are activators and why specific molecules are inhibitors)

22. The pyruvate dehydrogenase complex provides a transition between glycolysis and the citric acid cycle. Which...

22. The pyruvate dehydrogenase complex provides a transition between glycolysis and the citric acid cycle. Which co-factors are considered stoichiometric and which are considered catalytic? 23. Which conditions exert a negative influence (reduce the activity) of pyruvate dehydrogenase? 24. What is the critical role for lipoic acid in the pyruvate dehydrogenase complex? 25. Central to the function of the citric acid cycle are two decarboxylation reactions. What are these decarboxylation reaction? 26. Your friend tells you of a celebrity touting...

Pyruvate Dehydrogenase is a huge multi-enzyme complex in which substrates are channeled from one enzyme to...

Pyruvate Dehydrogenase is a huge multi-enzyme complex in which substrates are channeled from one enzyme to the next. In fact, recent evidence suggests that many citric acid cycle enzymes may interact pass substrates along the pathway and that the components of the electron transport chain associate into an electron transfer super complex. What are the advantages of such an arrangement?

11. In the Pyruvate Dehydrogenase complex, the acetyl unit is passed to the coA directly from...

11. In the Pyruvate Dehydrogenase complex, the acetyl unit is passed to the coA directly from __________________. A. biotin B. TPP C. FAD D. pyruvate E. lipoyllysine 13. A common feature of molecules that signal through steroid and metabolite hormone receptors is: A. they are hydrophobic B. they are polar C. their receptors are mostly found in the cell surface membrane D. their receptors signal through second messengers. E. their...

Can someone explain the role of the three subunits of the pyruvate dehydrogenase complex? Like how...

Can someone explain the role of the three subunits of the pyruvate dehydrogenase complex? Like how those subunits help with the complex turnign pyruvate into acetyl coA? Also why and how does the pyruvate move from cytoplasm to mitochondria? Also why does the Krebs cycle not accept pyruvate? Why does it need to be turned into acetyl coA first?

The pyruvate dehydrogenase complex utilizes 5 cofactors: for the listed cofactors describes briefly what its role...

The pyruvate dehydrogenase complex utilizes 5 cofactors: for the listed cofactors describes briefly what its role is. 1. ATP 2. Lipoic acid 3.HSCoA 4.FAD 5. NAD+

Subjects