Question 1

ATP is the primary energy source for the cell.

Accepted Answer

A) True 
 B)False

Question 2

In this figure,identify the metabolic substance numbered.  
-substance 6

Accepted Answer

The answer of In this figure,identify the metabolic substance numbered....

Question 3

Which step is found in the breakdown of a fatty acid?

Accepted Answer

A) an activation that requires 2 ATP 
B) an oxidation with a cytochrome c 
C) an oxidation with CoQ 
D) direct substrate phosphorylation 
E) production of pyruvate 
A) an activation that requires 2 ATP 
B) an oxidation with a cytochrome c 
C) an oxidation with CoQ 
D) direct substrate phosphorylation 
E) production of pyruvate

Question 4

In mammals,the ammonium ion produced in oxidative deamination is ________.

Accepted Answer

A) excreted in the feces 
B) stored in the liver 
C) converted to uric acid,which is excreted in the urine 
D) converted to urea,which is excreted in the urine 
E) converted to uric acid,which is excreted by the liver 
A) excreted in the feces 
B) stored in the liver 
C) converted to uric acid,which is excreted in the urine 
D) converted to urea,which is excreted in the urine 
E) converted to uric acid,which is excreted by the liver

Question 5

The last reaction in the citric acid cycle converts malate to ________.

Accepted Answer

A) citrate 
B) isocitrate 
C) succinate 
D) fumarate 
E) oxaloacetate 
A) citrate 
B) isocitrate 
C) succinate 
D) fumarate 
E) oxaloacetate

Question 6

In the activation of a fatty acid,energy from the hydrolysis of ATP is used to ________.

Accepted Answer

A) form a double bond in an oxidation reaction 
B) join the fatty acid to CoA 
C) add a molecule of water across a double bond to give a hydroxyl group on the β-carbon 
D) oxidize the hydroxyl group on the β-carbon 
E) cause a unit of acetyl-CoA to separate from the fatty acid chain 
A) form a double bond in an oxidation reaction 
B) join the fatty acid to CoA 
C) add a molecule of water across a double bond to give a hydroxyl group on the β-carbon 
D) oxidize the hydroxyl group on the β-carbon 
E) cause a unit of acetyl-CoA to separate from the fatty acid chain

Question 7

When combined with electron transport,one turn of the citric acid cycle produces ________ ATP.

Accepted Answer

A) 20 
B) 12 
C) 10 
D) 14 
E) 2 
A) 20 
B) 12 
C) 10 
D) 14 
E) 2

Question 8

In this figure,identify the metabolic substance numbered.  
-substance 1

Accepted Answer

The answer of In this figure,identify the metabolic substance numbered....

Question 9

Under anaerobic conditions,lactate is produced from ________.

Accepted Answer

A) acetyl-CoA 
B) pyruvate 
C) ATP 
D) carbon dioxide 
E) NA   
A) acetyl-CoA 
B) pyruvate 
C) ATP 
D) carbon dioxide 
E) NA

Question 10

Glycolysis is a(n)________ process.

Accepted Answer

A) aerobic 
B) anaerobic 
C) anabolic 
D) one-step 
E) five-step 
A) aerobic 
B) anaerobic 
C) anabolic 
D) one-step 
E) five-step

Question 11

In this figure,identify the metabolic substance numbered.  
-process 9

Accepted Answer

The answer of In this figure,identify the metabolic substance numbered....

Question 12

What coenzyme(s)is(are)used in the citric acid cycle?

Accepted Answer

A) FAD only 
B)    only 
C) NADH +   + CoA 
D) CoQ 
E)    + FAD 
A) FAD only 
B)    only 
C) NADH +   + CoA 
D) CoQ 
E)    + FAD

Question 13

NA   acts as a hydrogen acceptor in metabolic reactions.

Accepted Answer

A) True 
 B)False

Question 14

The enzymes that break down triacylglycerols into fatty acids and glycerol are called ________.

Accepted Answer

A) lyases 
B) aconitases 
C) lipases 
D) hydrolases 
E) oxidoreductases 
A) lyases 
B) aconitases 
C) lipases 
D) hydrolases 
E) oxidoreductases

Question 15

In stage three of metabolism,the overall result is to release ________.

Accepted Answer

A) glucose and water 
B) lactate and acetyl-CoA 
C) lactate and glucose 
D) glycogen and water 
E) carbon dioxide and energy 
A) glucose and water 
B) lactate and acetyl-CoA 
C) lactate and glucose 
D) glycogen and water 
E) carbon dioxide and energy

Question 16

Most of the energy released in the citric acid cycle is used to produce ________.

Accepted Answer

A) glucose 
B) acetyl-CoA 
C) NADH and   
D) carbon dioxide and water 
E) citric acid 
A) glucose 
B) acetyl-CoA 
C) NADH and   
D) carbon dioxide and water 
E) citric acid

Question 17

Fatty acids and glycerol are produced from the metabolism of ________.

Accepted Answer

A) lipids 
B) proteins 
C) carbohydrates 
D) amino acids 
E) glucose 
A) lipids 
B) proteins 
C) carbohydrates 
D) amino acids 
E) glucose

Question 18

The middle stage of catabolism is the point at which ________.

Accepted Answer

A) acetyl-CoA is produced 
B) monomers are produced from macromolecules 
C) macromolecules are made from monomers 
D) glycogen is converted to glucose 
E) excess nutrients are stored as fats 
A) acetyl-CoA is produced 
B) monomers are produced from macromolecules 
C) macromolecules are made from monomers 
D) glycogen is converted to glucose 
E) excess nutrients are stored as fats

Question 19

The compounds formed when fructose-1,6-bisphosphate is split are ________.

Accepted Answer

A) pyruvic acid and lactic acid 
B) ethanol and acetyl-CoA 
C) dihydroxyacetone phosphate and pyruvic acid 
D) dihydroxyacetone phosphate and glyceraldehyde-3-phosphate 
E) glyceraldehyde 3-phosphate and pyruvic acid 
A) pyruvic acid and lactic acid 
B) ethanol and acetyl-CoA 
C) dihydroxyacetone phosphate and pyruvic acid 
D) dihydroxyacetone phosphate and glyceraldehyde-3-phosphate 
E) glyceraldehyde 3-phosphate and pyruvic acid

Question 20

The reactions by which complex molecules are broken down into simpler ones for the body's use are ________.

Accepted Answer

A) transmission reactions 
B) catabolic reactions 
C) anabolic reactions 
D) glucogenesis 
E) gluconeogenesis 
A) transmission reactions 
B) catabolic reactions 
C) anabolic reactions 
D) glucogenesis 
E) gluconeogenesis

ATP is the primary energy source for the cell.

In this figure,identify the metabolic substance numbered. -substance 6

Which step is found in the breakdown of a fatty acid?

In mammals,the ammonium ion produced in oxidative deamination is ________.

The last reaction in the citric acid cycle converts malate to ________.

In the activation of a fatty acid,energy from the hydrolysis of ATP is used to ________.

When combined with electron transport,one turn of the citric acid cycle produces ________ ATP.

In this figure,identify the metabolic substance numbered. -substance 1

Under anaerobic conditions,lactate is produced from ________.

Glycolysis is a(n)________ process.

In this figure,identify the metabolic substance numbered. -process 9

What coenzyme(s)is(are)used in the citric acid cycle?

NA acts as a hydrogen acceptor in metabolic reactions.

The enzymes that break down triacylglycerols into fatty acids and glycerol are called ________.

In stage three of metabolism,the overall result is to release ________.

Most of the energy released in the citric acid cycle is used to produce ________.

Fatty acids and glycerol are produced from the metabolism of ________.

The middle stage of catabolism is the point at which ________.

The compounds formed when fructose-1,6-bisphosphate is split are ________.

The reactions by which complex molecules are broken down into simpler ones for the body's use are ________.

Chemistry in Our Lives

Chemistry and Measurement

Matter and Energy

Atoms and Elements

Nuclear Chemistry

Ionic and Molecular Compounds

Chemical Quantities and Reactions

Gases

Solutions

Acids and Bases and Equilibrium

Introduction to Organic Chemistry: Hydrocarbons

Alcohols, thiols, ethers, aldehydes, and Ketones

Carbohydrates

Carboxylic Acids, esters, amines, and Amides

Lipids

Amino Acids, proteins, and Enzymes

Nucleic Acids and Protein Synthesis

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Exam 18: Metabolic Pathways and Energy Production

ATP is the primary energy source for the cell.

In this figure,identify the metabolic substance numbered. -substance 6

Which step is found in the breakdown of a fatty acid?

In mammals,the ammonium ion produced in oxidative deamination is ________.

The last reaction in the citric acid cycle converts malate to ________.

In the activation of a fatty acid,energy from the hydrolysis of ATP is used to ________.

When combined with electron transport,one turn of the citric acid cycle produces ________ ATP.

In this figure,identify the metabolic substance numbered. -substance 1

Under anaerobic conditions,lactate is produced from ________.

Glycolysis is a(n)________ process.

In this figure,identify the metabolic substance numbered. -process 9

What coenzyme(s)is(are)used in the citric acid cycle?

NA acts as a hydrogen acceptor in metabolic reactions.

The enzymes that break down triacylglycerols into fatty acids and glycerol are called ________.

In stage three of metabolism,the overall result is to release ________.

Most of the energy released in the citric acid cycle is used to produce ________.

Fatty acids and glycerol are produced from the metabolism of ________.

The middle stage of catabolism is the point at which ________.

The compounds formed when fructose-1,6-bisphosphate is split are ________.

The reactions by which complex molecules are broken down into simpler ones for the body's use are ________.

Chemistry in Our Lives

Chemistry and Measurement

Matter and Energy

Atoms and Elements

Nuclear Chemistry

Ionic and Molecular Compounds

Chemical Quantities and Reactions

Gases

Solutions

Acids and Bases and Equilibrium

Introduction to Organic Chemistry: Hydrocarbons

Alcohols, thiols, ethers, aldehydes, and Ketones

Carbohydrates

Carboxylic Acids, esters, amines, and Amides

Lipids

Amino Acids, proteins, and Enzymes

Nucleic Acids and Protein Synthesis

Filters