The following fatty acid, in which the indicated carbon is labeled with 14C, is fed to an animal: 14CH3(CH2)9COOH After allowing 30 minutes for fatty acid $\beta$oxidation, the label would MOST likely be recovered in:

A) acetyl-CoA. B) beta-hydroxy butyryl-CoA. C) both acetyl-CoA and propionyl-CoA. D) palmitoyl-CoA. E) propionyl-CoA. A) acetyl-CoA. B) beta-hydroxy butyryl-CoA. C) both acetyl-CoA and propionyl-CoA. D) palmitoyl-CoA. E) propionyl-CoA.

A) a 15-carbon fatty acid. B) an essential cofactor for the citric acid cycle. C) essential for intracellular transport of fatty acids. D) one of the amino acids commonly found in protein. E) present only in carnivorous animals. A) a 15-carbon fatty acid. B) an essential cofactor for the citric acid cycle. C) essential for intracellular transport of fatty acids. D) one of the amino acids commonly found in protein. E) present only in carnivorous animals.

If the fatty acid 12:1 $\Delta$ 7 is completely catabolized to CO2 and H2O, what would be the gross yield of ATP?

A) 60 ATP B) 76.5 ATP C) 78 ATP D) 78.5 ATP E) 80 ATP A) 60 ATP B) 76.5 ATP C) 78 ATP D) 78.5 ATP E) 80 ATP

Exam 17: Fatty Acid Catabolism

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The following fatty acid, in which the indicated carbon is labeled with ¹⁴C, is fed to an animal: ¹⁴CH₃(CH₂)₉COOH After allowing 30 minutes for fatty acid $\beta$ oxidation, the label would MOST likely be recovered in:

(Multiple Choice)

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Question 21

Describe the steps in the metabolic pathway in which cells oxidize a four-carbon, straight-chain, saturated fatty acid (butyrate; 4:0) to the fragments that enter the citric acid cycle. Show the structures of intermediates and products, and indicate where any cofactor(s) participate(s).

(Essay)

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Question 22

Indicate whether the following statement is likely true or false, and explain your answer. After a breakfast rich in fat and very low in carbohydrates, acetyl CoA levels rise and ketone body synthesis decreases.

(Short Answer)

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Question 23

Which statement about lipolysis in adipocytes is FALSE?

(Multiple Choice)

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Question 24

Fatty acids are activated to acyl-CoAs and the acyl group is further transferred to carnitine because:

(Multiple Choice)

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Question 25

Describe the steps in the metabolic pathway in which cells oxidize a five-carbon, straight-chain, saturated fatty acid (valerate; 5:0) to the fragments that enter the citric acid cycle. Show the structures of intermediates and products, and indicate where any cofactor(s) participate(s).

(Essay)

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Question 26

Carnitine is:

(Multiple Choice)

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Question 27

Various irreversible reactions "drive" processes bioenergetically. What is one such driving force leading to the formation of an acyl-CoA molecule?

(Multiple Choice)

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Question 28

How many molecules of water are produced by the electron-transport chain during the complete aerobic oxidation of 1 molecule of palmitate?

(Multiple Choice)

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Question 29

In the liver, which enzyme is NOT required in the catabolism of glycerol?

(Multiple Choice)

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Question 30

If the fatty acid 12:1 ^$\Delta$ ⁷ is completely catabolized to CO₂ and H₂O, what would be the gross yield of ATP?

(Multiple Choice)

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Question 31

Saturated fatty acids are degraded by the stepwise reactions of $\beta$ oxidation, producing acetyl-CoA. Under aerobic conditions, how many ATP molecules would be produced as a consequence of removal of each acetyl-CoA?

(Multiple Choice)

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Question 32

Which enzyme is the major regulatory control point for $\beta$ oxidation?

(Multiple Choice)

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Question 33

Which statement is TRUE regarding the regulation of $\beta$ oxidation?

(Multiple Choice)

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Question 34

The consumption of palmitoyl-CoA by $\beta$ oxidation is decreased under which conditions?

(Multiple Choice)

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Question 35

Transport of fatty acids from the cytoplasm to the mitochondrial matrix requires:

(Multiple Choice)

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Question 36

The major site of formation of acetoacetate from fatty acids is the:

(Multiple Choice)

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Question 37

What is the CORRECT order of function of the following enzymes of  oxidation? 1. -hydroxyacyl-CoA dehydrogenase 2. thiolase 3. enoyl-CoA hydratase 4. acyl-CoA dehydrogenase

(Multiple Choice)

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Question 38

The metabolite that regulates the activity of carnitine acyl transferase I is:

(Multiple Choice)

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Question 39

Which statement is TRUE regarding fatty acids in adipocytes?

(Multiple Choice)

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Question 40

Showing 21 - 40 of 97

Exam 17: Fatty Acid Catabolism

The following fatty acid, in which the indicated carbon is labeled with 14C, is fed to an animal: 14CH3(CH2)9COOH After allowing 30 minutes for fatty acid β\betaβ oxidation, the label would MOST likely be recovered in:

Describe the steps in the metabolic pathway in which cells oxidize a four-carbon, straight-chain, saturated fatty acid (butyrate; 4:0) to the fragments that enter the citric acid cycle. Show the structures of intermediates and products, and indicate where any cofactor(s) participate(s).

Indicate whether the following statement is likely true or false, and explain your answer. After a breakfast rich in fat and very low in carbohydrates, acetyl CoA levels rise and ketone body synthesis decreases.

Which statement about lipolysis in adipocytes is FALSE?

Fatty acids are activated to acyl-CoAs and the acyl group is further transferred to carnitine because:

Describe the steps in the metabolic pathway in which cells oxidize a five-carbon, straight-chain, saturated fatty acid (valerate; 5:0) to the fragments that enter the citric acid cycle. Show the structures of intermediates and products, and indicate where any cofactor(s) participate(s).

Carnitine is:

Various irreversible reactions "drive" processes bioenergetically. What is one such driving force leading to the formation of an acyl-CoA molecule?

How many molecules of water are produced by the electron-transport chain during the complete aerobic oxidation of 1 molecule of palmitate?

In the liver, which enzyme is NOT required in the catabolism of glycerol?

If the fatty acid 12:1 Δ\DeltaΔ 7 is completely catabolized to CO2 and H2O, what would be the gross yield of ATP?

Saturated fatty acids are degraded by the stepwise reactions of β\betaβ oxidation, producing acetyl-CoA. Under aerobic conditions, how many ATP molecules would be produced as a consequence of removal of each acetyl-CoA?

Which enzyme is the major regulatory control point for β\betaβ oxidation?

Which statement is TRUE regarding the regulation of β\betaβ oxidation?

The consumption of palmitoyl-CoA by β\betaβ oxidation is decreased under which conditions?

Transport of fatty acids from the cytoplasm to the mitochondrial matrix requires:

The major site of formation of acetoacetate from fatty acids is the:

What is the CORRECT order of function of the following enzymes of  oxidation? 1. -hydroxyacyl-CoA dehydrogenase 2. thiolase 3. enoyl-CoA hydratase 4. acyl-CoA dehydrogenase

The metabolite that regulates the activity of carnitine acyl transferase I is:

Which statement is TRUE regarding fatty acids in adipocytes?

The Foundations of Biochemistry

Water

Amino Acids, Peptides, and Proteins

The Three-Dimensional Structure of Proteins

Protein Function

Enzymes

Carbohydrates and Glycobiology

Nucleotides and Nucleic Acids

DNA-Based Information Technologies

Lipids

Biological Membranes and Transport

Biosignaling

Bioenergetics and Biochemical Reaction Types

Glycolysis, Gluconeogenesis, and the Pentose Phosphate Pathway

Principles of Metabolic Regulation

The Citric Acid Cycle

Amino Acid Oxidation and the Production of Urea

Oxidative Phosphorylation and Photophosphorylation

Carbohydrate Biosynthesis in Plants and Bacteria

Lipid Biosynthesis

Biosynthesis of Amino Acids, Nucleotides, and Related Molecules

Hormonal Regulation and Integration of Mammalian Metabolism

Genes and Chromosomes

DNA Metabolism

RNA Metabolism

Protein Metabolism

Regulation of Gene Expression

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The following fatty acid, in which the indicated carbon is labeled with ¹⁴C, is fed to an animal: ¹⁴CH₃(CH₂)₉COOH After allowing 30 minutes for fatty acid $\beta$ oxidation, the label would MOST likely be recovered in:

If the fatty acid 12:1 ^$\Delta$ ⁷ is completely catabolized to CO₂ and H₂O, what would be the gross yield of ATP?

Saturated fatty acids are degraded by the stepwise reactions of $\beta$ oxidation, producing acetyl-CoA. Under aerobic conditions, how many ATP molecules would be produced as a consequence of removal of each acetyl-CoA?

Which enzyme is the major regulatory control point for $\beta$ oxidation?

Which statement is TRUE regarding the regulation of $\beta$ oxidation?

The consumption of palmitoyl-CoA by $\beta$ oxidation is decreased under which conditions?