Podcast
Questions and Answers
Which enzyme is responsible for cleaving a fatty acid from a triglyceride during lipolysis?
Which enzyme is responsible for cleaving a fatty acid from a triglyceride during lipolysis?
- Glycerol kinase
- Adenylate cyclase
- Hormone-sensitive lipase (correct)
- Glycerol phosphate dehydrogenase
What is the fate of glycerol released during triacylglycerol degradation in adipose tissue?
What is the fate of glycerol released during triacylglycerol degradation in adipose tissue?
- Converted to ketone bodies in the bloodstream
- Transported to the liver for phosphorylation (correct)
- Stored within the adipose tissue for later use
- Metabolized by adipocytes to produce energy
What happens to the free fatty acids released into the bloodstream during triacylglycerol degradation?
What happens to the free fatty acids released into the bloodstream during triacylglycerol degradation?
- They are broken down by adipocytes for energy production
- They are converted to glucose in the liver
- They are stored in the adipose tissue for later use
- They bind to serum albumin in the blood (correct)
Why do adipocytes lack the ability to metabolize the glycerol released during triacylglycerol degradation?
Why do adipocytes lack the ability to metabolize the glycerol released during triacylglycerol degradation?
Which organelle is essential for carrying out β-oxidation of fatty acids?
Which organelle is essential for carrying out β-oxidation of fatty acids?
Which hormones activate adenylate cyclase in adipose tissue, leading to the mobilization of stored fats?
Which hormones activate adenylate cyclase in adipose tissue, leading to the mobilization of stored fats?
What is the first step in the carbon backbone reaction sequence during fatty acid degradation?
What is the first step in the carbon backbone reaction sequence during fatty acid degradation?
What is the effect of Malonyl-CoA on β-oxidation?
What is the effect of Malonyl-CoA on β-oxidation?
Which of the following is a positive effector for regulating β-oxidation?
Which of the following is a positive effector for regulating β-oxidation?
What is the purpose of Acyl CoA synthetase reaction in fatty acid activation?
What is the purpose of Acyl CoA synthetase reaction in fatty acid activation?
During β-oxidation, the carbon backbone reaction sequence involves hydration to L–3–Hydroxylacyl CoA before oxidation to 3–Ketoacyl CoA.
During β-oxidation, the carbon backbone reaction sequence involves hydration to L–3–Hydroxylacyl CoA before oxidation to 3–Ketoacyl CoA.
Adipocytes have the ability to metabolize the glycerol released during triacylglycerol degradation.
Adipocytes have the ability to metabolize the glycerol released during triacylglycerol degradation.
Acyl CoA synthetase reaction occurs in the cytoplasm, and the resulting product, acyl-CoA, is directly transported into the mitochondrial matrix.
Acyl CoA synthetase reaction occurs in the cytoplasm, and the resulting product, acyl-CoA, is directly transported into the mitochondrial matrix.
High levels of insulin and low levels of glucagon are negative effectors for regulating β-oxidation.
High levels of insulin and low levels of glucagon are negative effectors for regulating β-oxidation.
Carnitine carries long-chain activated fatty acids out of the mitochondria for use as fuel.
Carnitine carries long-chain activated fatty acids out of the mitochondria for use as fuel.
Adipocytes can metabolize the glycerol released during TAG degradation because they have glycerol kinase.
Adipocytes can metabolize the glycerol released during TAG degradation because they have glycerol kinase.
The maximum solubility of fatty acid in blood is relatively high.
The maximum solubility of fatty acid in blood is relatively high.
Glycerol can be transported through the blood to the liver, where it can be phosphorylated.
Glycerol can be transported through the blood to the liver, where it can be phosphorylated.
Hormone-sensitive lipase cleaves a fatty acid from a triglyceride during lipolysis.
Hormone-sensitive lipase cleaves a fatty acid from a triglyceride during lipolysis.
Epinephrine and norepinephrine inhibit the activation of adenylate cyclase in adipose tissue.
Epinephrine and norepinephrine inhibit the activation of adenylate cyclase in adipose tissue.
