Question 1

Consider the following reaction.   Which of the following describes this reaction?&#10;A) is so strongly exergonic that it does not require a catalyst&#10;B) is an exergonic reaction not coupled to any other reaction&#10;C) is an endergonic reaction that takes place because it is coupled to the exergonic hydrolysis of ATP&#10;D) is an exergonic reaction that is coupled to the endergonic hydrolysis of ATP

Accepted Answer

C

Question 2

What amino acid is the following a-keto acid derived from?

Accepted Answer

glutamic acid

Question 3

Which group of small molecules best fit the boxes associated with the reaction shown? a b A) ADP + 2 P_i ATP B) NAD⁺ NADH C) NADP⁺ NADPH D) FAD FADH₂

Accepted Answer

B

Question 4

Which group of small molecules best fit the boxes associated with the reaction shown? a b A) GDP GTP B) NADP⁺ NADPH C) ADP + P_i ATP D) FAD FADH₂

Accepted Answer

The answer of Which group of small molecules best fit...

Question 5

Consider the deamination of serine to answer the following questions.&#10;

Accepted Answer

The answer of Consider the deamination of serine to answer...

Question 6

The reaction of fructose 1,6-bisphosphate to give glyceraldehyde-3-phosphate and dihydroxyacetone phosphate is an example of&#10;A) a reverse aldol condensation&#10;B) hydrolysis&#10;C) oxidation&#10;D) dehydration

Accepted Answer

The reaction of fructose 1,6-bisphosphate to give glyceraldehyde-3-phosphate and dihydroxyacetone phosphate is a reverse aldol condensation. This is because it involves the reverse of the aldol condensation reaction, where a molecule is broken down into two smaller molecules instead of being combined into a larger molecule.

Question 7

What product would be obtained from enzymatic transamination of 3-hydroxy-2-ketopropanoic acid?

Accepted Answer

The answer of What product would be obtained from enzymatic...

Question 8

A coenzyme frequently encountered in transamination reactions is&#10;A) tetrahydrofolate&#10;B) pyridoxal phosphate&#10;C) thiamine pyrophosphate&#10;D) biotin

Accepted Answer

Pyridoxal phosphate is a coenzyme frequently encountered in transamination reactions. It serves as a cofactor for aminotransferases, which catalyze the transfer of an amino group from an amino acid to an alpha-keto acid, thereby converting the latter to a new amino acid.

Question 9

What reaction does glutamate dehydrogenase (GDH) catalyze?&#10;A) The oxidative deamination of glutamate to yield a-ketoglutarate.&#10;B) Phosphorylation of carbamate to yield carbamoyl phosphate.&#10;C) The amidation of the g carboxyl group of glutamate to form glutamine.&#10;D) The deadenylation of glutamine synthetase (GS).&#10;E) The adenylation of glutamine synthetase.

Accepted Answer

Glutamate dehydrogenase (GDH) catalyzes the oxidative deamination of glutamate to yield a-ketoglutarate, which is an important step in the citric acid cycle. Therefore, the correct choice is A.

Question 10

The key functional group in the PLP-dependent transamination of an a-amino acid is an activated&#10;A) amine&#10;B) imine&#10;C) amide&#10;D) enamine

Accepted Answer

The key functional group in PLP-dependent transamination is an imine linkage between the PLP cofactor and the a-amino acid substrate, which is formed through the elimination of the amino group from the amino acid and the Schiff base formation with PLP. This imine linkage allows for the transfer of the amino group to the keto acid acceptor, which ultimately leads to the production of a new amino acid and a new keto acid. Therefore, the correct answer is B) imine.

Question 11

Which group of small molecules best fit the boxes associated with the reaction shown? a b c A) ATP ADP H₂O B) NADH NAD⁺ P_i C) NAD⁺ NADH H₂O D) NAD⁺ NADH P_i

Accepted Answer

The answer of Which group of small molecules best fit...

Question 12

Which enzyme catalyzes the reaction shown?  &#10;A) an epimerase&#10;B) an isomerase&#10;C) a mutase&#10;D) a dehydrogenase

Accepted Answer

The answer of Which enzyme catalyzes the reaction shown? ...

Question 13

Consider the structure of amylopectin below to answer the following questions.

Accepted Answer

The answer of Consider the structure of amylopectin below to...

Question 14

Which group of small molecules best fit the boxes associated with the reaction shown? a b A) ADP + 2 P_i ATP B) NAD⁺ NADH C) ATP ADP + 2 P_i D) FAD FADH₂

Accepted Answer

The answer of Which group of small molecules best fit...

Question 15

Instructions: Consider the reaction below to answer the following question(s).

Refer to instructions. The isomerization of glucose 6-phosphate to fructose 6-phosphate is an example of:

Accepted Answer

The answer of Instructions: Consider the reaction below to answer...

Question 16

The formation of amino acids from proteins&#10;A) occurs during anabolism.&#10;B) is endergonic.&#10;C) occurs during digestion.&#10;D) is a cellular process.&#10;E) all of these

Accepted Answer

The answer of The formation of amino acids from proteins&#10;A)...

Question 17

Consider the reaction below to answer the following questions.

Accepted Answer

The answer of Consider the reaction below to answer the...

Question 18

Many biological reactions are endergonic. Explain how it is possible that these reactions occur spontaneously.

Accepted Answer

The answer of Many biological reactions are endergonic. Explain how...

Question 19

During the complete catabolism of a molecule of glucose, the ultimate fate of the carbon atoms are&#10;A) pyruvate&#10;B) AcetylCoA&#10;C) carbon dioxide&#10;D) fructose-6-phosphate&#10;E) a, b or c

Accepted Answer

The answer of During the complete catabolism of a molecule...

Question 20

When acetyl-CoA reacts with oxaloacetate to form citrate&#10;A) a new carbon-carbon bond is formed&#10;B) an oxidative decarboxylation reaction takes place&#10;C) a dehydration reaction takes place&#10;D) a rearrangement takes place

Accepted Answer

The answer of When acetyl-CoA reacts with oxaloacetate to form...

Question 21

Draw and name the major product of the reaction of a-glucose with ATP.&#10;a-glucose-6-phosphate

Accepted Answer

The answer of Draw and name the major product of...

Question 22

Draw the product of the following reaction, which is involved in the catabolism of triacylglycerols.

Accepted Answer

The answer of Draw the product of the following reaction,...

Question 23

Instructions: Consider the reaction below to answer the following question(s).   Refer to instructions. Write the mechanism for this isomerization.

Accepted Answer

The answer of Instructions: Consider the reaction below to answer...

Question 24

How many molecules of acetyl CoA are produced in the catabolism of stearic acid?

Accepted Answer

The answer of How many molecules of acetyl CoA are...

Question 25

Instructions: Consider the reaction below to answer the following questions:   Refer to instructions. This reaction is an example of:&#10;

Accepted Answer

The answer of Instructions: Consider the reaction below to answer...

Question 26

What is the structure of the a-keto acid formed by transamination of the amino acid isoleucine?

Accepted Answer

The answer of What is the structure of the a-keto...

Question 27

All of the following describe b-oxidation, except: A) Two-carbon units are eliminated during each cycle. B) The process employs NAD⁺ as an oxidant. C) The process is the primary route to fatty acid degradation. D) The 2-carbon groups are eliminated from the methyl end of the fatty acid. E) Fatty acids are attached to coenzyme A during the process.

Accepted Answer

The answer of All of the following describe b-oxidation, except:&#10;A)...

Question 28

Instructions: Consider the reaction below to answer the following question(s).   Refer to instructions. The isomerization of glucose 6-phosphate to fructose 6-phosphate is an example of:&#10;

Accepted Answer

The answer of Instructions: Consider the reaction below to answer...

Question 29

All of the following are byproducts of b-oxidation, except: A) Acetyl CoA B) ADP C) NADH D) FADH₂ E) All of these are byproducts of b-oxidation.

Accepted Answer

The answer of All of the following are byproducts of...

Question 30

Instructions: Match a term or structure from the list below to each of the following definitions or names.

Accepted Answer

The answer of Instructions: Match a term or structure from...

Question 31

Draw the structure of the ultimate organic glycolysis product of a-glucose.

Accepted Answer

The answer of Draw the structure of the ultimate organic...

Question 32

Instructions: Consider the reaction below to answer the following questions:   Refer to instructions. Draw arrows on the structure below showing electron flow in this reaction.

Accepted Answer

The answer of Instructions: Consider the reaction below to answer...

Question 33

The source of oxygen for b-oxidation is: A) CO₂ B) O₂ C) Peroxide D) Water E) None of these is the source of oxygen for b-oxidation.

Accepted Answer

The answer of The source of oxygen for b-oxidation is:&#10;A)...

Question 34

Match between columns&#10;                        Premises: The &#34;energy currency&#34; of the cell.&#10;The &#34;energy currency&#34; of the cell.&#10;The &#34;energy currency&#34; of the cell.&#10;The &#34;energy currency&#34; of the cell.&#10;The &#34;energy currency&#34; of the cell.&#10;The &#34;energy currency&#34; of the cell.&#10;The &#34;energy currency&#34; of the cell.&#10;The &#34;energy currency&#34; of the cell.&#10;Pathways that break down larger biomolecules into smaller ones.&#10;Pathways that break down larger biomolecules into smaller ones.&#10;Pathways that break down larger biomolecules into smaller ones.&#10;Pathways that break down larger biomolecules into smaller ones.&#10;Pathways that break down larger biomolecules into smaller ones.&#10;Pathways that break down larger biomolecules into smaller ones.&#10;Pathways that break down larger biomolecules into smaller ones.&#10;Pathways that break down larger biomolecules into smaller ones.&#10;The product of the citric acid cycle, which is a reactant in the first step.&#10;The product of the citric acid cycle, which is a reactant in the first step.&#10;The product of the citric acid cycle, which is a reactant in the first step.&#10;The product of the citric acid cycle, which is a reactant in the first step.&#10;The product of the citric acid cycle, which is a reactant in the first step.&#10;The product of the citric acid cycle, which is a reactant in the first step.&#10;The product of the citric acid cycle, which is a reactant in the first step.&#10;The product of the citric acid cycle, which is a reactant in the first step.&#10;Pyridoxal phosphate, the cofactor in transaminations.&#10;Pyridoxal phosphate, the cofactor in transaminations.&#10;Pyridoxal phosphate, the cofactor in transaminations.&#10;Pyridoxal phosphate, the cofactor in transaminations.&#10;Pyridoxal phosphate, the cofactor in transaminations.&#10;Pyridoxal phosphate, the cofactor in transaminations.&#10;Pyridoxal phosphate, the cofactor in transaminations.&#10;Pyridoxal phosphate, the cofactor in transaminations.&#10;Discoverer of the glycolysis pathway.&#10;Discoverer of the glycolysis pathway.&#10;Discoverer of the glycolysis pathway.&#10;Discoverer of the glycolysis pathway.&#10;Discoverer of the glycolysis pathway.&#10;Discoverer of the glycolysis pathway.&#10;Discoverer of the glycolysis pathway.&#10;Discoverer of the glycolysis pathway.&#10;Coenzyme NAD+ required in the b-oxidation of fatty acids, glycolysis, and the citric acid cycle.&#10;Coenzyme NAD+ required in the b-oxidation of fatty acids, glycolysis, and the citric acid cycle.&#10;Coenzyme NAD+ required in the b-oxidation of fatty acids, glycolysis, and the citric acid cycle.&#10;Coenzyme NAD+ required in the b-oxidation of fatty acids, glycolysis, and the citric acid cycle.&#10;Coenzyme NAD+ required in the b-oxidation of fatty acids, glycolysis, and the citric acid cycle.&#10;Coenzyme NAD+ required in the b-oxidation of fatty acids, glycolysis, and the citric acid cycle.&#10;Coenzyme NAD+ required in the b-oxidation of fatty acids, glycolysis, and the citric acid cycle.&#10;Coenzyme NAD+ required in the b-oxidation of fatty acids, glycolysis, and the citric acid cycle.&#10;Acetyl groups are oxidized to yield carbon dioxide and water.&#10;Acetyl groups are oxidized to yield carbon dioxide and water.&#10;Acetyl groups are oxidized to yield carbon dioxide and water.&#10;Acetyl groups are oxidized to yield carbon dioxide and water.&#10;Acetyl groups are oxidized to yield carbon dioxide and water.&#10;Acetyl groups are oxidized to yield carbon dioxide and water.&#10;Acetyl groups are oxidized to yield carbon dioxide and water.&#10;Acetyl groups are oxidized to yield carbon dioxide and water.&#10;Reactions that put smaller molecules together to synthesize larger biomolecules.&#10;Reactions that put smaller molecules together to synthesize larger biomolecules.&#10;Reactions that put smaller molecules together to synthesize larger biomolecules.&#10;Reactions that put smaller molecules together to synthesize larger biomolecules.&#10;Reactions that put smaller molecules together to synthesize larger biomolecules.&#10;Reactions that put smaller molecules together to synthesize larger biomolecules.&#10;Reactions that put smaller molecules together to synthesize larger biomolecules.&#10;Reactions that put smaller molecules together to synthesize larger biomolecules.

Accepted Answer

The Answer of catabolism and citric acid cycle and 80c806ce_c6a8_11ee_89ef_824372e81c00_TB4942_00 is...

Deck 17: The Organic Chemistry of Metabolic Pathways