Question 1

Which classification of alcohols cannot be oxidized, and why?

Accepted Answer

A)  tertiary, because they don't have a hydrogen on the carbon adjacent to the alcohol 
B)  tertiary, because the alcohol is already attached to four atoms 
C)  secondary, because they are too hindered by carbons adjacent to the alcohol 
D)  primary, because they undergo competing reactions in the presence of an oxidant 
E)  primary, because the reaction takes too much energy 
A)  tertiary, because they don't have a hydrogen on the carbon adjacent to the alcohol 
B)  tertiary, because the alcohol is already attached to four atoms 
C)  secondary, because they are too hindered by carbons adjacent to the alcohol 
D)  primary, because they undergo competing reactions in the presence of an oxidant 
E)  primary, because the reaction takes too much energy A

Question 2

The metabolism of ethanol, like all biochemical reactions, requires

Accepted Answer

A)  energy. 
B)  heat. 
C)  catalysts. 
D)  water. 
E)  oxygen. 
A)  energy. 
B)  heat. 
C)  catalysts. 
D)  water. 
E)  oxygen. C

Question 3

What is the product of the following reaction?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)    A

Question 4

What is the product of the following reaction?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 5

What is the purpose of flavin adenine dinucleotide (FAD)in the body?

Accepted Answer

A)  It is an oxidizing agent. 
B)  It is a reducing agent. 
C)  It donates oxygen. 
D)  It donates hydrogen. 
E)  It accepts oxygen. 
A)  It is an oxidizing agent. 
B)  It is a reducing agent. 
C)  It donates oxygen. 
D)  It donates hydrogen. 
E)  It accepts oxygen.

Question 6

Which of the following statements describe esters? I.They are fruit flavorings.
II)They are sometimes a component of perfumes.
III)Soap can be made from an ester.

Accepted Answer

A)  All of these statements describe esters. 
B)  Only I describes esters. 
C)  I and II describe esters. 
D)  I and III describe esters. 
E)  II and III describe esters. 
A)  All of these statements describe esters. 
B)  Only I describes esters. 
C)  I and II describe esters. 
D)  I and III describe esters. 
E)  II and III describe esters.

Question 7

Which statement describes coenzymes?

Accepted Answer

A)  They are organic molecules derived from vitamins. 
B)  They are only found in bacterial cells. 
C)  They are chemically unchanged over the course of a reaction. 
D)  They are enzymes. 
E)  They are oxidoreductases. 
A)  They are organic molecules derived from vitamins. 
B)  They are only found in bacterial cells. 
C)  They are chemically unchanged over the course of a reaction. 
D)  They are enzymes. 
E)  They are oxidoreductases.

Question 8

What is the product of the following hydrolysis reaction between an ester and water?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 9

What does [H] represent in the following reaction?

Accepted Answer

A)  the oxidizing agent 
B)  the species that is oxidized 
C)  the reducing agent 
D)  the species that is protonated 
E)  atomic hydrogen 
A)  the oxidizing agent 
B)  the species that is oxidized 
C)  the reducing agent 
D)  the species that is protonated 
E)  atomic hydrogen

Question 10

Foods that contain the product of the reaction shown below are labeled as

Accepted Answer

A)  hydrogenated or partially hydrogenated. 
B)  fatty. 
C)  oily. 
D)  fat free. 
E)  diet. 
A)  hydrogenated or partially hydrogenated. 
B)  fatty. 
C)  oily. 
D)  fat free. 
E)  diet.

Question 11

The following reaction is one step in the key metabolic pathway called the citric acid cycle.This reaction is missing a reactant (A)which reacts to form a product (B).What is the identity of A and B?

Accepted Answer

A)  A is NAD+, and B is NADH + H+. 
B)  A is FAD, and B is FADH2. 
C)  A is NADH + H+, and B is NAD+. 
D)  A is FADH2, and B is FAD. 
E)  Actually, there is no A, but B is H2. 
A)  A is NAD+, and B is NADH + H+. 
B)  A is FAD, and B is FADH2. 
C)  A is NADH + H+, and B is NAD+. 
D)  A is FADH2, and B is FAD. 
E)  Actually, there is no A, but B is H2.

Question 12

Carbohydrates are molecules that are composed of many oxygen-containing functional groups.Carbohydrates, like other oxygen-containing molecules, can be oxidized in the laboratory.Which choice illustrates the oxidation of mannose, a simple carbohydrate?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 13

Cellular respiration is an example of a(n)___________ reaction. I.Oxidation-reduction
II)Acid-base
III)Combustion

Accepted Answer

A)  I only 
B)  I and II only 
C)  III only 
D)  I and III only 
E)  I, II, and III 
A)  I only 
B)  I and II only 
C)  III only 
D)  I and III only 
E)  I, II, and III

Question 14

The first two steps of ethanol metabolism are shown below.Which molecule is reduced over the course of these reactions?

Accepted Answer

A)  ethanol and acetaldehyde 
B)  alcohol dehydrogenase and acetaldehyde dehydrogenase 
C)  ethanol and alcohol dehydrogenase 
D)  acetic acid 
E)  NAD+ 
A)  ethanol and acetaldehyde 
B)  alcohol dehydrogenase and acetaldehyde dehydrogenase 
C)  ethanol and alcohol dehydrogenase 
D)  acetic acid 
E)  NAD+

Question 15

Which of the following is the missing reactant in the reaction below, the hydrolysis of a thioester?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 16

Which of the following statements describes the processes that can occur during oxidation? I.Loss of electrons
II)Gain of electrons
III)Loss of oxygens
IV)Loss of hydrogens

Accepted Answer

A)  I only 
B)  II only 
C)  I and III 
D)  I and IV 
E)  II and IV 
A)  I only 
B)  II only 
C)  I and III 
D)  I and IV 
E)  II and IV

Question 17

Is the alkene oxidized or reduced during this reaction, and how can you tell?

Accepted Answer

A)  Neither.This is not an oxidation-reduction reaction. 
B)  The alkene is both oxidized and reduced because this is an oxidation-reduction reaction. 
C)  The alkene is oxidized because it loses two hydrogens. 
D)  The alkene is reduced because it loses two hydrogens. 
E)  The alkene is reduced because it gains two hydrogens. 
A)  Neither.This is not an oxidation-reduction reaction. 
B)  The alkene is both oxidized and reduced because this is an oxidation-reduction reaction. 
C)  The alkene is oxidized because it loses two hydrogens. 
D)  The alkene is reduced because it loses two hydrogens. 
E)  The alkene is reduced because it gains two hydrogens.

Question 18

What is the product of the following reduction reaction?

Accepted Answer

A)  molecule a 
B)  molecule b 
C)  molecule c 
D)  molecule d 
E)  molecule e 
A)  molecule a 
B)  molecule b 
C)  molecule c 
D)  molecule d 
E)  molecule e

Question 19

The following reaction occurs in the body.Which reactant is most probably required for this reaction to occur?

Accepted Answer

A)  O2 
B)  H2 
C)  FAD 
D)  NAD 
E)  FADH2 
A)  O2 
B)  H2 
C)  FAD 
D)  NAD 
E)  FADH2

Question 20

What is the name of the functional group produced by the following reaction?

Accepted Answer

A)  a thioester 
B)  a sulfur 
C)  a sulfhydride 
D)  a thiol 
E)  a hydrogen sulfide 
A)  a thioester 
B)  a sulfur 
C)  a sulfhydride 
D)  a thiol 
E)  a hydrogen sulfide

Which classification of alcohols cannot be oxidized, and why?

The metabolism of ethanol, like all biochemical reactions, requires

What is the product of the following reaction?

What is the product of the following reaction?

What is the purpose of flavin adenine dinucleotide (FAD)in the body?

Which of the following statements describe esters? I.They are fruit flavorings. II)They are sometimes a component of perfumes. III)Soap can be made from an ester.

Which statement describes coenzymes?

What is the product of the following hydrolysis reaction between an ester and water?

What does [H] represent in the following reaction?

Foods that contain the product of the reaction shown below are labeled as

The following reaction is one step in the key metabolic pathway called the citric acid cycle.This reaction is missing a reactant (A)which reacts to form a product (B).What is the identity of A and B?

Carbohydrates are molecules that are composed of many oxygen-containing functional groups.Carbohydrates, like other oxygen-containing molecules, can be oxidized in the laboratory.Which choice illustrates the oxidation of mannose, a simple carbohydrate?

Cellular respiration is an example of a(n)___________ reaction. I.Oxidation-reduction II)Acid-base III)Combustion

The first two steps of ethanol metabolism are shown below.Which molecule is reduced over the course of these reactions?

Which of the following is the missing reactant in the reaction below, the hydrolysis of a thioester?

Which of the following statements describes the processes that can occur during oxidation? I.Loss of electrons II)Gain of electrons III)Loss of oxygens IV)Loss of hydrogens

Is the alkene oxidized or reduced during this reaction, and how can you tell?

What is the product of the following reduction reaction?

The following reaction occurs in the body.Which reactant is most probably required for this reaction to occur?

What is the name of the functional group produced by the following reaction?

Matter, Energy, and Measurement

Atomic Structure and Radioisotopes

Ionic and Covalent Compounds

Molecular Geometry, Polarity, and Intermolecular

Chemical Quantities and Introduction to Reactions

Chemical Reactions: Energy, Rates, and Equilibrium

Changes of State and Gas Laws

Mixtures, Solution Concentrations, and Diffusion

Acids and Bases, Ph, and Buffers

Introduction to Organic Chemistry:

Alcohols, Phenols, Thiols, Ethers, and Amines

The Carbonyl Containing Functional Groups

Carbohydrates: Structure and Function

Lipids: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

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Exam 13: The Common Organic Reactions in Biochemistry

Which classification of alcohols cannot be oxidized, and why?

The metabolism of ethanol, like all biochemical reactions, requires

What is the product of the following reaction?

What is the product of the following reaction?

What is the purpose of flavin adenine dinucleotide (FAD)in the body?

Which of the following statements describe esters? I.They are fruit flavorings. II)They are sometimes a component of perfumes. III)Soap can be made from an ester.

Which statement describes coenzymes?

What is the product of the following hydrolysis reaction between an ester and water?

What does [H] represent in the following reaction?

Foods that contain the product of the reaction shown below are labeled as

The following reaction is one step in the key metabolic pathway called the citric acid cycle.This reaction is missing a reactant (A)which reacts to form a product (B).What is the identity of A and B?

Carbohydrates are molecules that are composed of many oxygen-containing functional groups.Carbohydrates, like other oxygen-containing molecules, can be oxidized in the laboratory.Which choice illustrates the oxidation of mannose, a simple carbohydrate?

Cellular respiration is an example of a(n)___________ reaction. I.Oxidation-reduction II)Acid-base III)Combustion

The first two steps of ethanol metabolism are shown below.Which molecule is reduced over the course of these reactions?

Which of the following is the missing reactant in the reaction below, the hydrolysis of a thioester?

Which of the following statements describes the processes that can occur during oxidation? I.Loss of electrons II)Gain of electrons III)Loss of oxygens IV)Loss of hydrogens

Is the alkene oxidized or reduced during this reaction, and how can you tell?

What is the product of the following reduction reaction?

The following reaction occurs in the body.Which reactant is most probably required for this reaction to occur?

What is the name of the functional group produced by the following reaction?

Matter, Energy, and Measurement

Atomic Structure and Radioisotopes

Ionic and Covalent Compounds

Molecular Geometry, Polarity, and Intermolecular

Chemical Quantities and Introduction to Reactions

Chemical Reactions: Energy, Rates, and Equilibrium

Changes of State and Gas Laws

Mixtures, Solution Concentrations, and Diffusion

Acids and Bases, Ph, and Buffers

Introduction to Organic Chemistry:

Alcohols, Phenols, Thiols, Ethers, and Amines

The Carbonyl Containing Functional Groups

Carbohydrates: Structure and Function

Lipids: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

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