Question 1

What metabolic intermediate is formed from the carbon skeleton of the amino acid asparagine?

Accepted Answer

A) α-ketoglutarate 
B) Oxaloacetate 
C) Citrate 
D) Succinyl CoA 
E) Fumarate 
A) α-ketoglutarate 
B) Oxaloacetate 
C) Citrate 
D) Succinyl CoA 
E) Fumarate

Question 2

Which food product does not rely on fermentation for its production?

Accepted Answer

A) Cheese 
B) Beer 
C) Yogurt 
D) Yeast bread 
E) All of the food products listed rely on fermentation for their production. 
A) Cheese 
B) Beer 
C) Yogurt 
D) Yeast bread 
E) All of the food products listed rely on fermentation for their production.

Question 3

Which condition does not lead to increased levels of ketone bodies?

Accepted Answer

A) Uncontrolled diabetes 
B) Starvation 
C) High carbohydrate diet 
D) All of the conditions result in increased levels of ketone bodies. 
A) Uncontrolled diabetes 
B) Starvation 
C) High carbohydrate diet 
D) All of the conditions result in increased levels of ketone bodies.

Question 4

A carboxylase enzyme catalyzes the removal of carbon dioxide from a substrate.

Accepted Answer

A) True 
 B)False

Question 5

Which enzyme is capable of catalyzing the reaction shown?

Accepted Answer

A) Propanol kinase 
B) Propanol isomerase 
C) Propanol dehydrogenase 
D) Propanol carboxylase 
A) Propanol kinase 
B) Propanol isomerase 
C) Propanol dehydrogenase 
D) Propanol carboxylase

Question 6

Pyruvate is converted to ________ under anaerobic conditions.

Accepted Answer

lactate or

Question 7

Transamination removes the amino group from an amino acid,leaving a carbon skeleton that contains only carbon,hydrogen,and oxygen atoms.

Accepted Answer

A) True 
 B)False

Question 8

Which compound can rise to dangerously high levels in individuals with galactosemia?

Accepted Answer

A) Galactase 
B) Glucose 1-phosphate 
C) Galactose 
D) Galactose 6-phosphate 
A) Galactase 
B) Glucose 1-phosphate 
C) Galactose 
D) Galactose 6-phosphate

Question 9

The complete catabolism of glucose forms ________ CO2 molecules and ________ ATP molecules.

Accepted Answer

six or 6;

Question 10

Glucogenic amino acids ________.

Accepted Answer

A) are converted to acetyl CoA 
B) are converted to glucose 
C) are catabolized to pyruvate or an intermediate in the citric acid cycle 
D) can be converted to ketone bodies 
A) are converted to acetyl CoA 
B) are converted to glucose 
C) are catabolized to pyruvate or an intermediate in the citric acid cycle 
D) can be converted to ketone bodies

Question 11

The hydrolysis of ATP to ADP releases 7.3 kcal/mol of energy. If the coupled reaction below releases 3.4 kcal/mol of energy,then the amount of energy required for the phosphorylation of fructose 6-phosphate is ________ kcal/mol.

Accepted Answer

The answer of The hydrolysis of ATP to ADP releases...

Question 12

Cortisol is an anti-inflammatory agent that also regulates carbohydrate metabolism. Cortisol contains a primary alcohol,a secondary alcohol,and a quaternary alcohol.

Accepted Answer

A) True 
 B)False

Question 13

Which steps in glycolysis form ATP?

Accepted Answer

A) Steps 1 and 2 
B) Steps 3 and 6 
C) Steps 7 and 10 
D) Steps 1 and 3 
E) Steps 4 and 5 
A) Steps 1 and 2 
B) Steps 3 and 6 
C) Steps 7 and 10 
D) Steps 1 and 3 
E) Steps 4 and 5

Question 14

How many molecules of ATP are formed during the complete catabolism of a saturated fatty acid with the chemical formula CH3(CH2)20CO2H?

Accepted Answer

A) 32 
B) 98 
C) 140 
D) 148 
E) 150 
A) 32 
B) 98 
C) 140 
D) 148 
E) 150

Question 15

The rate of glycolysis decreases when the body's ATP concentration is high.

Accepted Answer

A) True 
 B)False

Question 16

Which is not a step in the Cori cycle?

Accepted Answer

A) The catabolism of glucose in muscle forms pyruvate,which is reduced to lactate when the oxygen supply is limited. 
B) Lactate is transported to the liver. 
C) Oxidation of lactate forms pyruvate,which is then converted to glucose by the 10-step process of gluconeogenesis. 
D) Pyruvate and NAD+ are transported to the muscle. 
A) The catabolism of glucose in muscle forms pyruvate,which is reduced to lactate when the oxygen supply is limited. 
B) Lactate is transported to the liver. 
C) Oxidation of lactate forms pyruvate,which is then converted to glucose by the 10-step process of gluconeogenesis. 
D) Pyruvate and NAD+ are transported to the muscle.

Question 17

Glycolysis is an anaerobic pathway.

Accepted Answer

A) True 
 B)False

Question 18

Where does gluconeogenesis take place?

Accepted Answer

A) In the brain 
B) In the muscle tissue 
C) In the liver 
D) In the kidney 
E) Gluconeogenesis takes place in all of the locations listed. 
A) In the brain 
B) In the muscle tissue 
C) In the liver 
D) In the kidney 
E) Gluconeogenesis takes place in all of the locations listed.

Question 19

Ketone bodies are produced in the kidneys,and since they are small molecules that can hydrogen bond with water,they are readily soluble in blood and urine.

Accepted Answer

A) True 
 B)False

Exam 24: Carbohydrate,lipid,and Protein Metabolism

What metabolic intermediate is formed from the carbon skeleton of the amino acid asparagine?

Which food product does not rely on fermentation for its production?

Which condition does not lead to increased levels of ketone bodies?

A carboxylase enzyme catalyzes the removal of carbon dioxide from a substrate.

Which enzyme is capable of catalyzing the reaction shown?

Pyruvate is converted to ________ under anaerobic conditions.

Transamination removes the amino group from an amino acid,leaving a carbon skeleton that contains only carbon,hydrogen,and oxygen atoms.

Which compound can rise to dangerously high levels in individuals with galactosemia?

The complete catabolism of glucose forms ________ CO2 molecules and ________ ATP molecules.

Glucogenic amino acids ________.

The hydrolysis of ATP to ADP releases 7.3 kcal/mol of energy. If the coupled reaction below releases 3.4 kcal/mol of energy,then the amount of energy required for the phosphorylation of fructose 6-phosphate is ________ kcal/mol.

Cortisol is an anti-inflammatory agent that also regulates carbohydrate metabolism. Cortisol contains a primary alcohol,a secondary alcohol,and a quaternary alcohol.

Which steps in glycolysis form ATP?

How many molecules of ATP are formed during the complete catabolism of a saturated fatty acid with the chemical formula CH3(CH2)20CO2H?

The rate of glycolysis decreases when the body's ATP concentration is high.

Which is not a step in the Cori cycle?

Glycolysis is an anaerobic pathway.

Where does gluconeogenesis take place?

Ketone bodies are produced in the kidneys,and since they are small molecules that can hydrogen bond with water,they are readily soluble in blood and urine.

Matter and Measurement

Atoms and the Periodic Table

Ionic Compounds

Covalent Compounds

Chemical Reactions

Energy Changes,reaction Rates,and Equilibrium

Gases,liquids,and Solids

Solutions

Acids and Bases

Nuclear Chemistry

Introduction to Organic Molecules and Functional Groups

Alkanes

Unsaturated Hydrocarbons

Organic Compounds That Contain Oxygen,halogen,or Sulfur

The Three-Dimensional Shape of Molecules

Aldehydes and Ketones

Carboxylic Acids,esters,and Amides

Amines and Neurotransmitters

Lipids

Carbohydrates

Amino Acids,proteins,and Enzymes

Nucleic Acids and Protein Synthesis

Metabolism and Energy Production

Filters

The complete catabolism of glucose forms CO₂ molecules and ATP molecules.

How many molecules of ATP are formed during the complete catabolism of a saturated fatty acid with the chemical formula CH₃(CH₂)₂₀CO₂H?