Homework Answers
alpha-ketoglutarate is found in the citric acid cycle and aspartate- malate shuttle pathway. It has 5 carbons while aspartate has 4 carbon.
The answer is E.
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Biochemistry
5. Alpha ketoglutarate. A. Has the same number of carbons as aspartate B. Is found...
The number of electrons produced by one cycle of Krebs is 6 b. 8 &n
The number of electrons produced by one cycle of Krebs is 6 b. 8 c. 4 d. 2 The Ala that comes from the muscle is returned to the muscle as pyruvate c. glucose glutamate d. a-ketoglutarate Oxaloacetate enters the urea cycle as citrulline c. glutamate aspartate d. fumarate The oxidation of pyruvate to AcCoA uses similar cofactors as the oxidation of malate succinate a-ketoglutarate isocitrate The enzyme that requires FAD as cofactor is...
GTP or ATP is produced during the conversion of _ A isocitrate into a-ketoglutarate o B...
GTP or ATP is produced during the conversion of _ A isocitrate into a-ketoglutarate o B succinyl CoA into succinate O C fumarate into malate O D malate into oxaloacetate Fill in the Blanks For each of these products, indicate how many are made as a result of the citric acid cycle for each glucose molecule that is broken down: NADH FADH2 CO2
12. Which enzyme catalyzes the reaction shown? Oo 9% a. succinyl-CoA synthetase b. succinate dehydrogenase c....
12. Which enzyme catalyzes the reaction shown? Oo 9% a. succinyl-CoA synthetase b. succinate dehydrogenase c. pyruvate dehydrogenase d、a-ketoglutarate dehydrogenase 13. Which of the reactions of the citric acid cycle requires FAD as a coenzyme? a. the conversion of isocitrate to a-ketoglutarate b. the conversion of citrate to isocitrate c. the conversion of succinate to fumarate d. the conversion of malate to oxaloacetate 14. Another name for Complex I in the electron transport chain is a. cytochrome c oxidase. b....
Molecule G is a four carbon molecule which is formed from the Molecule F a tricarboxylic...
Molecule G is a four carbon molecule which is formed from the Molecule F a tricarboxylic acid after it has gone through oxidative decarboxylations to yield G during citric acid cycle. Molecule F is formed from Molecule E which in turn is formed from Molecules C and D condensation. Molecule C is formed from the oxidative decarboxylation of Molecule A and Molecule D is formed from the oxidation of Molecule X. 1. Molecule X is: A. Alpha-ketoglutarate B. Oxaloacetate C....
1. The enzyme responsible for the substrate level phosphorylation in the citric acid cycle is: a...
1. The enzyme responsible for the substrate level phosphorylation in the citric acid cycle is: a succinate dehydrogenase b. a-ketoglutarate dehydrogenase c. succinyl thiokinase d. isocitrate dehydrogenase e. aconitase 2. Which of the listed enzymes of the TCA cycle does not represent a regulatory enzyme?: a. isocitrate dehydrogenase b. succinate dehydrogenase c. malate dehydrogenase d. a-ketoglutarate dehydrogenase complex e. citrate synthase 3. Oxidative decarboxylation of pyruvic acid is regulated by: a. cyclic AMP-dependent mechanism b. cyclic AMP-independent mechanism 4. The...
5. Which sequence illustrates the order of the steps from food to biochemically useful energy? (2...
5. Which sequence illustrates the order of the steps from food to biochemically useful energy? (2 points) A) digestion; citric acid cycle; ATP production; acetyl-SCoA production B) digestion; citric acid cycle; acetyl-SCoA production; ATP production C) citric acid cycle; digestion; acetyl-SCoA production; ATP production D) digestion; acetyl-SCoA production; citric acid cycle; ATP production E) digestion; acetyl-SCoA production; ATP production; citric acid cycle 6. When electrons are lost during a metabolic oxidation: (2 points) A) they go off into the environment...
What type of gradient is critical to ATP formation by oxidativephosphorylation?A.sodium ionB....
What type of gradient is critical to ATP formation by oxidative phosphorylation?A.sodium ionB.chloride ionC.protonD.potassium ionE.None of the answers is correct.Which of the following citric acid cycle intermediates would become depleted if malonate, a competitive inhibitor of succinate dehydrogenase, were present?A.citrateB.α-ketoglutarateC.succinateD.malateE.None of the answers is correct.Which of the following correctly pairs a coenzyme with the enzyme of the pyruvate dehydrogenase complex with which it is associated?A.coenzyme A: pyruvate dehydrogenaseB.NAD+: dihydrolipoyl dehydrogenaseC.lipoic acid: pyruvate dehydrogenase kinaseD.thiamine pyrophosphate: dihydrolipoyl dehydrogenaseE.FAD: dihydrolipoyl transacetylaseWhich of...
Please explain why as well. 4. On average, how many ATP molecules are synthesized per NADH?...
Please explain why as well. 4. On average, how many ATP molecules are synthesized per NADH? A. 0 B. 1 C. 2 D. 3 E. 4 5. The FADH2 that is produced donates its electrons directly to A. Complex I B. Complex III C. Complex IV D. Coenzyme Q E. Cytochrome C F. O2 6. In the Binding Change Mechanism the 3 conformational states that occur in the F1 subunit of ATP synthase depend on A. interaction with b subunits...
When melting or boiling a substance (both of which are physical changes), which kinds of attractions...
When melting or boiling a substance (both of which are physical changes), which kinds of attractions may be broken? Circle all that apply. dipole-dipole London forces covalent bonds hydrogen bonding он но. Vs. If I told you that only one of these molecules is a solid at room temperature, which one is that more likely to be? How can you tell from the structure? Circle the hydrophilic portion of the molecules above and put a box around the hydrophobic parts....
15. Genetic defect in pyruvate dehydrogenase complex lead a. maple syrup urine disease b. phenyike d....
15. Genetic defect in pyruvate dehydrogenase complex lead a. maple syrup urine disease b. phenyike d. lactic acidemia e. pellagra syrup urine disease b, phenylketonuria c. galactosemia 10. Chemical modification by phosphorylation of pyruvate dehydros a. deactivates the enzyme b. activates the enzyme lation of pyruvate dehydrogenase complex : 17. Pyruvate carboxylase is positively ated through the allosteric mechanism by : a. ATP b. NADH c. Acetyl-SCOA d. TPP e. Biotin 18. Which of the listed coenzymes does not particip...
GTP or ATP is produced during the conversion of _ A isocitrate into a-ketoglutarate o B succinyl CoA into succinate O C fumarate into malate O D malate into oxaloacetate Fill in the Blanks For each of these products, indicate how many are made as a result of the citric acid cycle for each glucose molecule that is broken down: NADH FADH2 CO2
12. Which enzyme catalyzes the reaction shown? Oo 9% a. succinyl-CoA synthetase b. succinate dehydrogenase c. pyruvate dehydrogenase d、a-ketoglutarate dehydrogenase 13. Which of the reactions of the citric acid cycle requires FAD as a coenzyme? a. the conversion of isocitrate to a-ketoglutarate b. the conversion of citrate to isocitrate c. the conversion of succinate to fumarate d. the conversion of malate to oxaloacetate 14. Another name for Complex I in the electron transport chain is a. cytochrome c oxidase. b....
1. The enzyme responsible for the substrate level phosphorylation in the citric acid cycle is: a succinate dehydrogenase b. a-ketoglutarate dehydrogenase c. succinyl thiokinase d. isocitrate dehydrogenase e. aconitase 2. Which of the listed enzymes of the TCA cycle does not represent a regulatory enzyme?: a. isocitrate dehydrogenase b. succinate dehydrogenase c. malate dehydrogenase d. a-ketoglutarate dehydrogenase complex e. citrate synthase 3. Oxidative decarboxylation of pyruvic acid is regulated by: a. cyclic AMP-dependent mechanism b. cyclic AMP-independent mechanism 4. The...
When melting or boiling a substance (both of which are physical changes), which kinds of attractions may be broken? Circle all that apply. dipole-dipole London forces covalent bonds hydrogen bonding он но. Vs. If I told you that only one of these molecules is a solid at room temperature, which one is that more likely to be? How can you tell from the structure? Circle the hydrophilic portion of the molecules above and put a box around the hydrophobic parts....
15. Genetic defect in pyruvate dehydrogenase complex lead a. maple syrup urine disease b. phenyike d. lactic acidemia e. pellagra syrup urine disease b, phenylketonuria c. galactosemia 10. Chemical modification by phosphorylation of pyruvate dehydros a. deactivates the enzyme b. activates the enzyme lation of pyruvate dehydrogenase complex : 17. Pyruvate carboxylase is positively ated through the allosteric mechanism by : a. ATP b. NADH c. Acetyl-SCOA d. TPP e. Biotin 18. Which of the listed coenzymes does not particip...
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