Concept explainers
(a)
Interpretation:
Whether the B-vitamin niacin is involved in (1) β-oxidation pathway, (2) ketogenesis, (3) lipogenesis, or (4) conversion of
Concept introduction:
Niacin includes NAD+, NADH and NADPH coenzymes. Niacin and nicotinamide are precursors of the coenzyme NAD and NADP. Both NAD and NADP are involved in many dehydrogenation reactions. While NAD participates in the catabolic activities, NADP participates in the anabolic activities.
(b)
Interpretation:
Whether the B-vitamin thiamin is involved in (1) β-oxidation pathway, (2) ketogenesis, (3) lipogenesis, or (4) conversion of ketone bodies to acetyl CoA, has to be determined.
Concept introduction:
Thiamin is also called vitamin B1. Vitamins are defined as the micronutrients that are needed in a small amount for the proper functioning of the metabolic activities in the organisms. Cofactors are non-protein organic compounds that are used along with the enzymes and help to carry forward the reaction. Cofactors cannot perform on their own alone.
(c)
Interpretation:
Whether pantothenic acid is involved in (1) β-oxidation pathway, (2) ketogenesis, (3) lipogenesis, or (4) conversion of ketone bodies to acetyl CoA, has to be determined.
Concept introduction:
Vitamins are defined as the micronutrients that are needed in a small amount for the proper functioning of the metabolic activities in the organisms. Cofactors are non-protein organic compounds that are used along with the enzymes and help to carry forward the reaction. Cofactors cannot perform on their own alone. Pantothenic acid is also called vitamin B5. Its coenzyme derivative is CoA. It plays a vital role in carbohydrate, protein and fat
(d)
Interpretation:
Whether folate is involved in (1) β-oxidation pathway, (2) ketogenesis, (3) lipogenesis, or (4) conversion of ketone bodies to acetyl CoA, has to be determined.
Concept introduction:
Vitamins are defined as the micronutrients that are needed in a small amount for the proper functioning of the metabolic activities in the organisms. Cofactors are non-protein organic compounds that are used along with the enzymes and help to carry forward the reaction. Cofactors cannot perform on their own alone. Folate is also known as vitamin B9. Folate is required for the synthesis of RNA, DNA, and carbohydrate metabolism.
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GENERAL,ORGANIC,+BIO.CHEM.-MINDTAP
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- How many molecules of ATP are obtained from the NADH and FADH2 formed in the beta-oxidation of one molecule of a 16-carbon saturated fatty acyl-CoAarrow_forwardWhich of the three common metabolic pathways for pyruvate is compatible with each of the following characterizations concerning the reactions that pyruvate undergoes? a. Acetaldehyde is an intermediate in this pathway b. An anaerobic pathway that does not function in humans c. An anaerobic pathway that does function in humans d. A C2 molecule is a product under aerobic reaction conditions for this pathwayarrow_forwardSelect the metabolite that activates the citric acid cycle. ADP O Citrate O NADH Succinyl-CoAarrow_forward
- Can you help to solve this?arrow_forwardModify the given molecule to show the product of the oxidation reaction using NAD+ as the oxidizing agent. Include the appropriate hydrogen atoms and charges. OH O .lari. -CH₂- NAD+ Select Draw Rings More / ||| ||| C 0 H 44 H 4 Erase +NADH- ho given molecule to show the product of the oxidation reaction using FAD as the oxidizing agent. Include thearrow_forwardThe TCA cycle (or tricarboxylic acid cycle) breaks down acetyl CoA and captures the energy in high energy molecules. For each molecule of acetyl CoA, the TCA cycle yields A) 1 ATP and 1 NADH B) 1 CO₂ and 2 NADH C) 4 CO₂ and 6 NADH and 2 FADH2 2 D) 2 CO₂ and 3 NADH and 1 FADH₂ E) 2 CO₂ and 3 NADH and and 1 FADH₂ and 1 ATParrow_forward
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