To determine the B-vitamin-containing coenzymes that do not participate in the reactions involved in the metabolism of carbohydrate. Concept introduction: Carbohydrates are the biomolecules composed of carbon, oxygen and hydrogen atoms. Carbohydrate molecules are joined together by glycosidic linkage. Carbohydrates are an important source of energy and therefore, they are important parts of human nutrients. Vitamins are defined as the micronutrients that are needed in the small amount for the proper functioning of the metabolic activities in the organisms. B vitamins function as coenzymes in the metabolic reactions. B vitamins are involved in glycolysis, glycogenesis, glycogenolysis, gluconeogenesis, and conversion of pyruvate to lactate and acetyl CoA . Coenzymes are non-protein organic compounds that are used along with the enzymes and help to carry forward the reaction. Coenzymes cannot perform on their own alone. In glycolysis, glucose is converted into pyruvate; in glycogenesis, glucose 6 − phosphate is converted into glycogen; in glycogenolysis, glycogen is converted to glucose 6 − phosphate ; in gluconeogenesis, a non-carbohydrate substance is converted into glucose; pyruvate is converted to acetyl CoA under oxygen-rich conditions and to lactate under oxygen-poor conditions in the human body.

Question

Want to see the full answer?

Answer 1

Question

Chapter 24.10, Problem 2QQ

Interpretation Introduction

Interpretation: To determine the B-vitamin-containing coenzymes that do not participate in the reactions involved in the metabolism of carbohydrate.

Concept introduction: Carbohydrates are the biomolecules composed of carbon, oxygen and hydrogen atoms. Carbohydrate molecules are joined together by glycosidic linkage. Carbohydrates are an important source of energy and therefore, they are important parts of human nutrients.

Vitamins are defined as the micronutrients that are needed in the small amount for the proper functioning of the metabolic activities in the organisms. B vitamins function as coenzymes in the metabolic reactions. B vitamins are involved in glycolysis, glycogenesis, glycogenolysis, gluconeogenesis, and conversion of pyruvate to lactate and acetyl CoA.

Coenzymes are non-protein organic compounds that are used along with the enzymes and help to carry forward the reaction. Coenzymes cannot perform on their own alone.

In glycolysis, glucose is converted into pyruvate; in glycogenesis, glucose 6−phosphate is converted into glycogen; in glycogenolysis, glycogen is converted to glucose 6−phosphate; in gluconeogenesis, a non-carbohydrate substance is converted into glucose; pyruvate is converted to acetyl CoA under oxygen-rich conditions and to lactate under oxygen-poor conditions in the human body.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Which of the following is true concerning the function of lipoic acid in pyruvate metabolism? a. transfer of acetyl groups b. pyruvate decarboxylation c. conversion of pyruvate to lactate d. oxidation of FADH2 to yield NADH

Before a fatty acid can undergo β-oxidation, it must be activated and then shuttled across the inner mitochondrial membrane. The activating agent and shuttle molecule are, respectively: A. CoA and carnitine B. CoA and citrate C. acetyl CoA and carnitine D. acetyl CoA and citrate

Which of the following statements about the ß-oxidation cycle is/are TRUE?A. The fatty acyl produced is shorter by 2 carbon atoms than the previous cycle.B. The two oxidation reactions involve both NADH and NADPH.C. Acetyl-CoA is produced in the hydration reaction.D. In the cleavage reaction, the bond between the α- and β- carbons become a double bund.