Question 1

Some amino acids are converted to glucose via conversion to pyruvate and ________________.

Accepted Answer

oxaloacetate

Question 2

In spirit, gluconeogenesis is the reversal of glycolysis ________________ (true or false).

Accepted Answer

False

Question 3

The gluconeogenesis step responsible for reversing pyruvate kinase is ________________.

Accepted Answer

PEPCK

Question 4

The cellular compartment where the first step in gluconeogenesis occurs is _______________.

Accepted Answer

The answer of The cellular compartment where the first step...

Question 5

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-The conversion of glucose 6-phosphate to glucose takes place in the ____________.

Accepted Answer

The answer of Use the following to answer questions
Choose the...

Question 6

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-____________: This essential nutrient is required for the carboxylation of pyruvate in humans.

Accepted Answer

Biotin is required as a cofactor for the enzymatic activity of pyruvate carboxylase, which carboxylates pyruvate to oxaloacetate.

Question 7

Glycerol from fats is modified first by glycerol kinase and then a second enzyme to enter gluconeogenesis at the intermediate ________________.

Accepted Answer

The answer of Glycerol from fats is modified first by...

Question 8

The process of forming glucose from amino acids is called ________________.

Accepted Answer

The answer of The process of forming glucose from amino...

Question 9

The amount of glucose in the bloodstream and other body fluids is ________________.

Accepted Answer

The answer of The amount of glucose in the bloodstream...

Question 10

The enzyme that carboxylates pyruvate is oxaloacetate is __________________.

Accepted Answer

The answer of The enzyme that carboxylates pyruvate is oxaloacetate...

Question 11

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-____________ controls the synthesis and degradation of fructose 2,6-bisphosphate.

Accepted Answer

PFK2 controls the synthesis and degradation of fructose 2,6-bisphosphate.

Question 12

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-The compound ____________ activates glycolysis and inhibits gluconeogenesis via conversion of fructose 1,6-bisphosphate.

Accepted Answer

Fructose 2,6-bisphosphate activates glycolysis and inhibits gluconeogenesis via conversion of fructose 1,6-bisphosphate.

Question 13

The daily glucose requirement for a typical adult brain is ________________.

Accepted Answer

The answer of The daily glucose requirement for a typical...

Question 14

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-The reaction that uses GTP and not ATP as its high-phosphoryl-transfer potential donor is ____________.

Accepted Answer

Phosphoenolpyruvate carboxykinase (PEPCK) is an enzyme in the gluconeogenesis pathway that uses GTP, rather than ATP, to catalyze the conversion of oxaloacetate to phosphoenolpyruvate.

Question 15

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-The ____________ cycle is responsible for converting muscle lactate into glucose in the liver.

Accepted Answer

The Cori cycle is responsible for converting muscle lactate into glucose in the liver, allowing lactate produced by anaerobic metabolism in muscles to be converted back into glucose by the liver.

Question 16

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-The stores of glucose are enough to support metabolism of a person for ____________.

Accepted Answer

The question is asking about the amount of time that the stores of glucose are enough to support metabolism of a person for. Only option C mentions a time frame, which is one day.

Question 17

ATP in the reaction catalyzed by PEPCK is used to fix ________________ to biotin.

Accepted Answer

The answer of ATP in the reaction catalyzed by PEPCK...

Question 18

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-The process by which noncarbohydrate precursor molecules are converted into glucose is ____________.

Accepted Answer

Gluconeogenesis is the process by which noncarbohydrate precursor molecules are converted into glucose.

Answer: F
 PFK2 (phosphofructokinase-2) is an enzyme that plays a key role in the regulation of gluconeogenesis. Phosphoenolpyruvate carboxykinase is another key enzyme involved in the process of gluconeogenesis.

Answer: K
 Oxaloacetate is an intermediate molecule involved in the process of gluconeogenesis.

Answer: L
 Biotin is a coenzyme that is necessary for the proper function of several enzymes involved in gluconeogenesis.

Question 19

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-The major tissue in which gluconeogenesis takes place is the ____________.

Accepted Answer

Gluconeogenesis primarily occurs in the liver, not in muscle or other tissues.

Question 20

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-____________: An intermediate that is decarboxylated and phosphorylated to produce phosphoenolpyruvate.

Accepted Answer

Oxaloacetate is the intermediate that is decarboxylated and phosphorylated to produce phosphoenolpyruvate in gluconeogenesis.

Answer: F
 Phosphoenolpyruvate carboxykinase is the enzyme responsible for catalyzing the decarboxylation and phosphorylation of oxaloacetate to produce phosphoenolpyruvate in gluconeogenesis.

Answer: I
 Fructose 2,6-bisphosphate is a regulatory molecule that activates PFK2, which in turn stimulates glycolysis and inhibits gluconeogenesis.

Quiz 17: Gluconeogenesis

Some amino acids are converted to glucose via conversion to pyruvate and ________________.

In spirit, gluconeogenesis is the reversal of glycolysis ________________ (true or false).

The gluconeogenesis step responsible for reversing pyruvate kinase is ________________.

The cellular compartment where the first step in gluconeogenesis occurs is _______________.

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -The conversion of glucose 6-phosphate to glucose takes place in the ____________.

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -____________: This essential nutrient is required for the carboxylation of pyruvate in humans.

Glycerol from fats is modified first by glycerol kinase and then a second enzyme to enter gluconeogenesis at the intermediate ________________.

The process of forming glucose from amino acids is called ________________.

The amount of glucose in the bloodstream and other body fluids is ________________.

The enzyme that carboxylates pyruvate is oxaloacetate is __________________.

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -____________ controls the synthesis and degradation of fructose 2,6-bisphosphate.

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -The compound ____________ activates glycolysis and inhibits gluconeogenesis via conversion of fructose 1,6-bisphosphate.

The daily glucose requirement for a typical adult brain is ________________.

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -The reaction that uses GTP and not ATP as its high-phosphoryl-transfer potential donor is ____________.

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -The ____________ cycle is responsible for converting muscle lactate into glucose in the liver.

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -The stores of glucose are enough to support metabolism of a person for ____________.

ATP in the reaction catalyzed by PEPCK is used to fix ________________ to biotin.

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -The process by which noncarbohydrate precursor molecules are converted into glucose is ____________.

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -The major tissue in which gluconeogenesis takes place is the ____________.

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -____________: An intermediate that is decarboxylated and phosphorylated to produce phosphoenolpyruvate.