Podcast
Questions and Answers
What is the primary role of fatty acids in the liver and heart?
What is the primary role of fatty acids in the liver and heart?
- Transport vitamins through the bloodstream
- Serve as a structural component of cell membranes
- Provide a significant source of energy (correct)
- Store excess carbohydrates as fats
Which substance facilitates the transport of fatty acids into mitochondria?
Which substance facilitates the transport of fatty acids into mitochondria?
- Glycerol
- Coenzyme A
- Albumin
- Carnitine (correct)
How many ATP molecules are net produced from the complete oxidation of palmitic acid (C16)?
How many ATP molecules are net produced from the complete oxidation of palmitic acid (C16)?
- 96 ATP
- 129 ATP (correct)
- 131 ATP
- 44 ATP
What is the initial step in the activation of fatty acids before oxidation?
What is the initial step in the activation of fatty acids before oxidation?
In which stage of fatty acid oxidation is NADH and FADH2 produced?
In which stage of fatty acid oxidation is NADH and FADH2 produced?
What ultimately determines whether acetyl-CoA enters the TCA cycle or is converted into ketone bodies?
What ultimately determines whether acetyl-CoA enters the TCA cycle or is converted into ketone bodies?
What occurs in untreated diabetes mellitus that leads to the overproduction of ketone bodies?
What occurs in untreated diabetes mellitus that leads to the overproduction of ketone bodies?
What happens to oxaloacetate levels during starvation, and what is its consequence?
What happens to oxaloacetate levels during starvation, and what is its consequence?
What physiological condition results from the inability of peripheral tissues to utilize ketone bodies quickly enough?
What physiological condition results from the inability of peripheral tissues to utilize ketone bodies quickly enough?
Which of the following best describes the role of glucagon in the context of ketone body production?
Which of the following best describes the role of glucagon in the context of ketone body production?
What stimulates the synthesis of malonyl-CoA in fatty acid oxidation?
What stimulates the synthesis of malonyl-CoA in fatty acid oxidation?
Which enzyme converts methylmalonyl-CoA to succinyl-CoA?
Which enzyme converts methylmalonyl-CoA to succinyl-CoA?
Which vitamin is essential for the synthesis of succinyl-CoA?
Which vitamin is essential for the synthesis of succinyl-CoA?
What effect does malonyl-CoA have on fatty acid oxidation?
What effect does malonyl-CoA have on fatty acid oxidation?
Which of the following ketone bodies contributes to ketoacidosis?
Which of the following ketone bodies contributes to ketoacidosis?
What is the role of hydroxocobalamin as approved by the FDA in December 2006?
What is the role of hydroxocobalamin as approved by the FDA in December 2006?
Which tissues are able to utilize ketone bodies when glucose is unavailable?
Which tissues are able to utilize ketone bodies when glucose is unavailable?
Which of the following does NOT synthesize Vitamin B12?
Which of the following does NOT synthesize Vitamin B12?
Which of the following is NOT a ketone body?
Which of the following is NOT a ketone body?
What is the primary alternative fuel to sugars mentioned for use in other tissues?
What is the primary alternative fuel to sugars mentioned for use in other tissues?
What is the primary energy yield from one NADH during cellular respiration?
What is the primary energy yield from one NADH during cellular respiration?
What is the main challenge faced during the oxidation of monounsaturated fatty acids?
What is the main challenge faced during the oxidation of monounsaturated fatty acids?
Which enzyme is needed to produce the trans-2 cis-4 intermediate during the oxidation of some polyunsaturated fatty acids?
Which enzyme is needed to produce the trans-2 cis-4 intermediate during the oxidation of some polyunsaturated fatty acids?
What product is generated at the end of the beta-oxidation of odd-numbered fatty acids?
What product is generated at the end of the beta-oxidation of odd-numbered fatty acids?
What does coenzyme B12 primarily catalyze in the metabolism of odd-number fatty acids?
What does coenzyme B12 primarily catalyze in the metabolism of odd-number fatty acids?
How does the energy yield from polyunsaturated fatty acids compare to that of saturated fatty acids?
How does the energy yield from polyunsaturated fatty acids compare to that of saturated fatty acids?
Which statement accurately describes the beta-oxidation of unsaturated fatty acids?
Which statement accurately describes the beta-oxidation of unsaturated fatty acids?
Flashcards
Fatty Acid Catabolism
Fatty Acid Catabolism
The process of breaking down fatty acids for energy production.
Fatty Acid Activation
Fatty Acid Activation
The preparatory step where fatty acids are conjugated with CoA to enter the mitochondria.
β-Oxidation
β-Oxidation
The process of breaking down fatty acids two carbons at a time in the mitochondria.
Carnitine Shuttle
Carnitine Shuttle
Signup and view all the flashcards
Energy Yield from Fatty Acids
Energy Yield from Fatty Acids
Signup and view all the flashcards
Unsaturated Fatty Acid Oxidation
Unsaturated Fatty Acid Oxidation
Signup and view all the flashcards
Odd-Number Fatty Acid Oxidation
Odd-Number Fatty Acid Oxidation
Signup and view all the flashcards
Isomerase Enzyme
Isomerase Enzyme
Signup and view all the flashcards
Coenzyme B12
Coenzyme B12
Signup and view all the flashcards
Ketone Body Formation
Ketone Body Formation
Signup and view all the flashcards
Ketone Body Use
Ketone Body Use
Signup and view all the flashcards
Cis-Trans Conversion
Cis-Trans Conversion
Signup and view all the flashcards
Starvation/Diabetes & Ketone Bodies
Starvation/Diabetes & Ketone Bodies
Signup and view all the flashcards
Reduced Energy Yield (Unsaturated)
Reduced Energy Yield (Unsaturated)
Signup and view all the flashcards
Diabetic Ketoacidosis
Diabetic Ketoacidosis
Signup and view all the flashcards
Succinyl-CoA
Succinyl-CoA
Signup and view all the flashcards
Oxaloacetate (OAA) Role
Oxaloacetate (OAA) Role
Signup and view all the flashcards
Succinyl-CoA synthesis
Succinyl-CoA synthesis
Signup and view all the flashcards
Methylmalonyl-CoA mutase
Methylmalonyl-CoA mutase
Signup and view all the flashcards
Vit B12 (Cobalamine)
Vit B12 (Cobalamine)
Signup and view all the flashcards
Fatty Acid Synthesis
Fatty Acid Synthesis
Signup and view all the flashcards
Malonyl-CoA
Malonyl-CoA
Signup and view all the flashcards
Beta-oxidation inhibition
Beta-oxidation inhibition
Signup and view all the flashcards
Ketone bodies
Ketone bodies
Signup and view all the flashcards
Ketoacidosis
Ketoacidosis
Signup and view all the flashcards
Fatty acid oxidation
Fatty acid oxidation
Signup and view all the flashcards
Regulation of fatty acid oxidation
Regulation of fatty acid oxidation
Signup and view all the flashcards