What are the three names for the metabolic cycle that occurs in the matrix of the mitochondria? This pathway receives acetyl-CoA, combines it to other metabolites, steals its available electrons, and releases carbon in its most oxidized form.
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What are the three names for the
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- Study Figure 19.18 and decide which of the following statements is false. Pyruvate dehydrogenase is inhibited by· NIADH. Pyruvate dehydrogenase is inhibited by AΤΡ. Citrate synthase is inhibited by NADH. Succinyl-CoA activates citrate synthase. Acetyl-CoA activates pyruvate carboxylase.Both prokaryotic and eukaryotic organisms carry out some form of glycolysis. How does ha fact support or not support the assertion that glycolysis is one of the oldest metabolic pathways?Two carbon atoms are fed into the citric acid cycle as acetyl-CoA. In what form are two carbon atoms removed from the cycle?
- What is the final fate of the carbons in acetyl-CoA after several turns of the citric acid cycle?How many cycles of "citric acid cycle" are necessary to reveal the "C" that come from acetyl-CoA that take place in the first cycle known as "CO2"?The citric acid cycle consumes oxygen Group of answer choices True False Oxidative phosphorylation converts the phosphoryl-transfer potential of ATP into the electron transfer potential of NADH and FADH2 Group of answer choices True False Carbohydrate metabolism is the source of all acetyl CoA that enters the citric acid cycle Group of answer choices True False
- When one acetyl CoA is processed through the citric acid cycle, how many times does each of the following events occur? a. A FAD molecule is a reactant. b. A CoA-SH molecule is produced. c. A dehydrogenase enzyme is needed for the reaction to occur. d. A C5 molecule is produced.Which of the following pair of substances are products of the citric acid cycle? a) Acetyl CoA and NADH b) Acetyl CoA and CO2 c) CoA-SH and FADH2 d) Citrate and CO2The Krebs cycle occurs in the Select one: a. cytoplasm, as the compound acetyl CoA enters. b. mitochondria, as the compound pyruvate (C3) enters. c. mitochondria, as the compound acetyl CoA enters. d. cytoplasm, as the compound pyruvate (C3) enters.
- The citric acid cycle is a critical sequence of reactions for energy production, which take place in the matrix of the mitochondria. The reaction cycle requires materials from the cytosol to be converted into acetyl CoA, which represents the starting point of a new cycle. Which of the following statements about acetyl CoA is true? (a) Acetyl CoA is recycled at the end of every cycle. (b) Oxaloacetate is attached to acetyl CoA to feed the citric acid cycle. (c) Triacylglycerol molecules are transported into the mitochondrial matrix and cleaved by lipases to produce acetyl CoA. (d) Oxaloacetate is converted directly into acetyl CoA to feed the citric acid cycleIf 30 molecules of acetyl CoA enter into the mitochondria in the presence of O2, how many molecules of ATP will be formed through oxidative phosphorylation?What is the common metabolic pathway of Acetyl-CoA, the TCA Cycle, and the Electron Transport Chain (ECT).? Explain the process involved.
