Podcast
Questions and Answers
What is the main source of energy during fasting?
What is the main source of energy during fasting?
- Proteins
- Carbohydrates
- Glucose
- Lipids (correct)
During starvation, what process increases leading to a decrease in the need for glucose?
During starvation, what process increases leading to a decrease in the need for glucose?
- Glycolysis
- Ketogenesis (correct)
- Gluconeogenesis
- Lipolysis
Which amino acid is used by enterocytes to form alanine?
Which amino acid is used by enterocytes to form alanine?
- Aspartate
- Lysine
- Glutamine (correct)
- Threonine
What is the main substrate for gluconeogenesis during starvation?
What is the main substrate for gluconeogenesis during starvation?
What happens to the BMR during starvation?
What happens to the BMR during starvation?
What is the fate of excess Acetyl CoA produced from fatty acid breakdown during fasting?
What is the fate of excess Acetyl CoA produced from fatty acid breakdown during fasting?
What is the final product of the Krebs cycle in the process of oxidative phosphorylation?
What is the final product of the Krebs cycle in the process of oxidative phosphorylation?
When blood sugar levels drop, which process is responsible for the breakdown of glycogen to release glucose-1-phosphate?
When blood sugar levels drop, which process is responsible for the breakdown of glycogen to release glucose-1-phosphate?
What is the purpose of the enzyme glycogen synthase in the process of glycogenesis?
What is the purpose of the enzyme glycogen synthase in the process of glycogenesis?
Which of the following is NOT a product of the Krebs cycle in the process of oxidative phosphorylation?
Which of the following is NOT a product of the Krebs cycle in the process of oxidative phosphorylation?
When glucose is available in excess, what process is responsible for the conversion of glucose to glycogen for storage?
When glucose is available in excess, what process is responsible for the conversion of glucose to glycogen for storage?
Which enzyme is responsible for the conversion of glucose-1-phosphate to glucose-6-phosphate during the process of glycogenolysis?
Which enzyme is responsible for the conversion of glucose-1-phosphate to glucose-6-phosphate during the process of glycogenolysis?
What is the primary purpose of gluconeogenesis?
What is the primary purpose of gluconeogenesis?
Which of the following lipids can be routinely oxidized for energy?
Which of the following lipids can be routinely oxidized for energy?
What is the primary product of the oxidation of glycerol?
What is the primary product of the oxidation of glycerol?
How much ATP energy can be harvested from the complete oxidation of glycerol?
How much ATP energy can be harvested from the complete oxidation of glycerol?
What is the primary function of beta-oxidation?
What is the primary function of beta-oxidation?
When does lipogenesis, the synthesis of triglycerides, occur?
When does lipogenesis, the synthesis of triglycerides, occur?
What is the primary function of VLDL (very low density lipoprotein)?
What is the primary function of VLDL (very low density lipoprotein)?
What is the primary role of chylomicrons?
What is the primary role of chylomicrons?
What is the role of apolipoprotein B48 (APOB48) in chylomicron synthesis?
What is the role of apolipoprotein B48 (APOB48) in chylomicron synthesis?
What is the function of microsomal triglyceride transfer protein (MTP) in chylomicron synthesis?
What is the function of microsomal triglyceride transfer protein (MTP) in chylomicron synthesis?
What is the primary site of chylomicron synthesis in the intestine?
What is the primary site of chylomicron synthesis in the intestine?
Which of the following fatty acids are not incorporated into chylomicrons?
Which of the following fatty acids are not incorporated into chylomicrons?
What is the primary site of absorption for chylomicrons?
What is the primary site of absorption for chylomicrons?
Which enzyme is responsible for hydrolyzing the triglycerides of chylomicrons in the bloodstream?
Which enzyme is responsible for hydrolyzing the triglycerides of chylomicrons in the bloodstream?
What is the first step in the synthesis of triglycerides from fatty acids and monoglycerides within the epithelial cells?
What is the first step in the synthesis of triglycerides from fatty acids and monoglycerides within the epithelial cells?
What is the final and committed step in the synthesis of triglycerides within the epithelial cells?
What is the final and committed step in the synthesis of triglycerides within the epithelial cells?
What happens to the fatty acids and glycerol released from the hydrolysis of chylomicron triglycerides?
What happens to the fatty acids and glycerol released from the hydrolysis of chylomicron triglycerides?
What hormone stimulates the activity of lipoprotein lipase?
What hormone stimulates the activity of lipoprotein lipase?
