Podcast
Questions and Answers
What is the primary energy source for the brain, skeletal muscle, and red blood cells?
What is the primary energy source for the brain, skeletal muscle, and red blood cells?
- Propionate
- Glucose (correct)
- Alanine
- Glycerol
What is the purpose of gluconeogenesis in the liver and kidneys?
What is the purpose of gluconeogenesis in the liver and kidneys?
- To synthesize glucose from non-carbohydrate precursors (correct)
- To break down glucose into energy
- To convert glucose into lactate
- To store glucose in the form of glycogen
What are some examples of non-carbohydrate precursors used in gluconeogenesis?
What are some examples of non-carbohydrate precursors used in gluconeogenesis?
- Lactate, pyruvate, glucogenic amino acids, glycerol, and propionate (correct)
- Alanine, aspartate, and glucose
- Glycerol, propionate, and ketone bodies
- Lactate, pyruvate, and glucose
Why is gluconeogenesis necessary during periods of starvation or fasting?
Why is gluconeogenesis necessary during periods of starvation or fasting?
What is the estimated daily glucose requirement of the brain?
What is the estimated daily glucose requirement of the brain?
What is the primary function of the Cori cycle?
What is the primary function of the Cori cycle?
What is the byproduct of the breakdown of triacylglycerols in adipose tissue?
What is the byproduct of the breakdown of triacylglycerols in adipose tissue?
What is the type of bond that creates branches in glycogen?
What is the type of bond that creates branches in glycogen?
What is the net energy cost of gluconeogenesis?
What is the net energy cost of gluconeogenesis?
What happens to glucose after absorption in the well-fed state?
What happens to glucose after absorption in the well-fed state?
What is the intermediate molecule in the conversion of glycerol to glucose?
What is the intermediate molecule in the conversion of glycerol to glucose?
Which enzyme catalyzes the conversion of oxaloacetate to PEP in the gluconeogenesis pathway?
Which enzyme catalyzes the conversion of oxaloacetate to PEP in the gluconeogenesis pathway?
Which enzyme is responsible for converting fructose-1,6-bisphosphate to fructose-6-phosphate in the gluconeogenic pathway?
Which enzyme is responsible for converting fructose-1,6-bisphosphate to fructose-6-phosphate in the gluconeogenic pathway?
What are the non-carbohydrate precursors that can be converted to pyruvate and considered glucogenic?
What are the non-carbohydrate precursors that can be converted to pyruvate and considered glucogenic?
Which of the following enzymes is NOT involved in the gluconeogenesis process?
Which of the following enzymes is NOT involved in the gluconeogenesis process?
Which of the following statements about the energy cost of gluconeogenesis is true?
Which of the following statements about the energy cost of gluconeogenesis is true?
What enzyme catalyzes the conversion of glucose-6-phosphate to glucose in the liver and kidney?
What enzyme catalyzes the conversion of glucose-6-phosphate to glucose in the liver and kidney?
