Concept explainers
(a)
Interpretation: The B vitamin precursor for the coenzyme, PLP has to be identified.
Concept introduction: Vitamin-B is a water soluble vitamin. There are eight vitamins classified as Vitamin B on the basis of their biochemical function to act as a precursor for the enzyme cofactors. The eight vitamin B are: thiamin, riboflavin, niacin, pantothenic acid, vitamin
(b)
Interpretation: The B vitamin precursor for the coenzyme, TPP has to be identified.
Concept introduction: Vitamin-B is a water soluble vitamin. There are eight vitamins classified as Vitamin B on the basis of their biochemical function to act as a precursor for the enzyme cofactors. The eight vitamin B are: thiamin, riboflavin, niacin, pantothenic acid, vitamin
(c)
Interpretation: The B vitamin precursor for the coenzyme, CoA has to be identified.
Concept introduction: Vitamin-B is a water soluble vitamin. There are eight vitamins classified as Vitamin B on the basis of their biochemical function to act as a precursor for the enzyme cofactors. The eight vitamin B are: thiamin, riboflavin, niacin, pantothenic acid, vitamin
(d)
Interpretation: The B vitamin precursor for the coenzyme,
Concept introduction: Vitamin-B is a water soluble vitamin. There are eight vitamins classified as Vitamin B on the basis of their biochemical function to act as a precursor for the enzyme cofactors. The eight vitamin B are: thiamin, riboflavin, niacin, pantothenic acid, vitamin
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EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
- Which cofactor is essential for the synthesis of arginine in bacteria A. Tetrahydrofolate B. Pyridoxal phosphate C. FADH D. Acetyl-CoAarrow_forwardIn the reaction catalyzed by malate dehydrogenase, which of the following molecules is classified as the reduced donor? a. Malate b. Oxaloacetate c. Fumerate d. FAD e. FADH2 f. NAD+ g. NADHarrow_forwardDefine the following terms: a. thiolytic cleavage b. ketogenesis c. ketone bodies d. α-oxidation e. ACCarrow_forward
- Which one of the following will function to inhibit CPT1? A.palmitoyl-CoA B.citrate C propionyl-CoA D.acetyl-CoA E malonyl-CoAarrow_forwardWhich of the following is NOT produced during the reactions of acetyl-CoA formation? (only one choice is correct) A. Acetyl CoA B. Electrons C. CO2 D. ATParrow_forwardWhich of the following produces the highest number of reducing equivalent molecules per mole of a saturated 10 carbon fatty acid chain in aerobic conditions? A. Oxidation of Malate to Oxaloacetate B. the Electron Transport Chain C. Oxidation of a-Ketoglutarate to Succinyl-COA D. the B-Oxidation "spiral"arrow_forward
- Which of the following is NOT a component of the pyruvate dehydrogenase complex? a. dihydrolipoyl dehydrogenase b. dihydrolipoyl transacetylase c. pyruvate dehydrogenase d. dihydrolipoyl catalasearrow_forward"which of the following can be used to replenish oxaloacetate in the krebs cycle"a. aspartic acid b.glutamine c.asparagine d. glutamic acidarrow_forwardThe rate limiting and committed step of the pentose phosphate pathway is catalyzed by which of the following enzymes? A. Glucose-6-phosphate dehydrogenase B. Hexokinase C. 6-Phosphogluconate dehydrogenase D. Transketolasearrow_forward
- Five coenzymes are required by a-ketoglutarate dehydrogenase, the enzyme in the citric acid cycle that converts a-ketoglutarate to succinyl-CoA.a. Identify the coenzymes.b. Propose a mechanism for the reaction.arrow_forwardExplain the role of the coenzymes NAD + and NADH in each reaction. a. pyruvate-------> acetyl CoA b. pyruvate-------> lactate c. pyruvate--------> ethanolarrow_forwardA patient who has been drinking large amounts of alcohol for long periods of time shows thefollowing symptoms: apathy, loss of memory, and a rhythmical to-and-fro motion of the eyeballs.Which of the following reactions are most likely to be affected in the patient? A. Conversation of pyruvate to acetyl-CoA B. Conversation of a-ketoglutarate to succinyl-CoA C. Both A and B D. Neither A nor Barrow_forward
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