Question 1

Which one of the following is an example of an amino acid?

Accepted Answer

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

Question 2

Given the two bases used in DNA, guanine and cytosine, shown below, draw the hydrogen bonding interactions between the two molecules that assist in construction of the DNA double helix.

Accepted Answer

@#IMG-DLM& A total of three hy

Question 3

Which one of the following is a base contained in a nucleotide?

Accepted Answer

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

Question 4

Which statement is not correct? A chiral molecule ________

Accepted Answer

A) is an enantiomer. 
B) rotates the plane of polarized light. 
C) has four different groups bonded to the same carbon atom. 
D) has properties different from those of its mirror image. 
E) can be superimposed on its mirror image. 
A) is an enantiomer. 
B) rotates the plane of polarized light. 
C) has four different groups bonded to the same carbon atom. 
D) has properties different from those of its mirror image. 
E) can be superimposed on its mirror image.

Question 5

Trans fats are unhealthy in foods and tend to be solid at room temperature because they have bonds that force the triglyceride to be ________

Accepted Answer

A) rigid and straight. 
B) rigid and bent. 
C) flexible and straight. 
D) flexible and bent. 
E) highly reactive. 
A) rigid and straight. 
B) rigid and bent. 
C) flexible and straight. 
D) flexible and bent. 
E) highly reactive.

Question 6

Which of the following are not amino acids?

Accepted Answer

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

Question 7

Fluvalinate is a pesticide used to control mite populations in honeybee colonies. Identify the ether functional group in fluvalinate.

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) V 
A) I 
B) II 
C) III 
D) IV 
E) V

Question 8

The ordering of subunits, such as amino acids, in a polymer, is called ________

Accepted Answer

A) the primary structure. 
B) the secondary structure. 
C) the tertiary structure. 
D) the ordering structure. 
E) the quaternary structure. 
A) the primary structure. 
B) the secondary structure. 
C) the tertiary structure. 
D) the ordering structure. 
E) the quaternary structure.

Question 9

Identify the functional groups present in the following molecule.

Accepted Answer

There are

Question 10

Which structure contains the ester functional group?

Accepted Answer

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

Question 11

In glycolysis, ________ is converted into pyruvic acid.

Accepted Answer

A) sucrose 
B) fructose 
C) galactose 
D) glucose 
E) glycolase 
A) sucrose 
B) fructose 
C) galactose 
D) glucose 
E) glycolase

Question 12

A glycosidic bond links two sugar molecules in carbohydrates. This linkage could also be called an ________

Accepted Answer

A) alcohol. 
B) amide. 
C) ether. 
D) aldehyde. 
E) ester. 
A) alcohol. 
B) amide. 
C) ether. 
D) aldehyde. 
E) ester.

Question 13

In its linear form, which functional groups are present in glucose?

Accepted Answer

A) aldehyde and alcohol 
B) aldehyde and carboxyl 
C) alcohol and ketone 
D) amino and alcohol 
E) amino and aldehyde 
A) aldehyde and alcohol 
B) aldehyde and carboxyl 
C) alcohol and ketone 
D) amino and alcohol 
E) amino and aldehyde

Question 14

Which one of the following is best associated with lipids?

Accepted Answer

A) amino acids 
B) saccharides 
C) ribose units 
D) phosphate linkages 
E) fatty acids 
A) amino acids 
B) saccharides 
C) ribose units 
D) phosphate linkages 
E) fatty acids

Question 15

Identify all of the functional groups in the following molecule.

Accepted Answer

amide, ether, carbox

Question 16

In its ring structure, which functional groups are present in glucose?

Accepted Answer

A) ether and alcohol 
B) aldehyde and carboxyl 
C) alcohol and ketone 
D) amino and alcohol 
E) amino and aldehyde 
A) ether and alcohol 
B) aldehyde and carboxyl 
C) alcohol and ketone 
D) amino and alcohol 
E) amino and aldehyde

Question 17

The cyclization of glucose forms a ________

Accepted Answer

A) four-membered ring. 
B) five-membered ring. 
C) six-membered ring. 
D) seven-membered ring. 
E) double ring. 
A) four-membered ring. 
B) five-membered ring. 
C) six-membered ring. 
D) seven-membered ring. 
E) double ring.

Question 18

A peptide bond is the result of a condensation reaction between ________

Accepted Answer

A) two carboxylic acid groups on different amino acids. 
B) an amino group on one amino acid and the carboxylic acid group on another. 
C) two amino groups on different amino acids. 
D) an amino group and a carboxylic acid group on the same amino acid. 
E) an amino group and a carboxylic acid group, producing a zwitterion. 
A) two carboxylic acid groups on different amino acids. 
B) an amino group on one amino acid and the carboxylic acid group on another. 
C) two amino groups on different amino acids. 
D) an amino group and a carboxylic acid group on the same amino acid. 
E) an amino group and a carboxylic acid group, producing a zwitterion.

Question 19

Oleic acid, shown below, is ________

Accepted Answer

A) a lipid. 
B) a cis fatty acid. 
C) a trans fatty acid. 
D) a peptide. 
E) a saccharide. 
A) a lipid. 
B) a cis fatty acid. 
C) a trans fatty acid. 
D) a peptide. 
E) a saccharide.

Question 20

Which structure contains the ketone functional group?

Accepted Answer

A)    
B)    
C)    
D)    
E) All of the above illustrate the ketone functional group. 
A)    
B)    
C)    
D)    
E) All of the above illustrate the ketone functional group.

Exam 20: Organic and Biological Molecules: the Compounds of Life

Which one of the following is an example of an amino acid?

Given the two bases used in DNA, guanine and cytosine, shown below, draw the hydrogen bonding interactions between the two molecules that assist in construction of the DNA double helix.

Which one of the following is a base contained in a nucleotide?

Which statement is not correct? A chiral molecule ________

Trans fats are unhealthy in foods and tend to be solid at room temperature because they have bonds that force the triglyceride to be ________

Which of the following are not amino acids?

Fluvalinate is a pesticide used to control mite populations in honeybee colonies. Identify the ether functional group in fluvalinate.

The ordering of subunits, such as amino acids, in a polymer, is called ________

Identify the functional groups present in the following molecule.

Which structure contains the ester functional group?

In glycolysis, ________ is converted into pyruvic acid.

A glycosidic bond links two sugar molecules in carbohydrates. This linkage could also be called an ________

In its linear form, which functional groups are present in glucose?

Which one of the following is best associated with lipids?

Identify all of the functional groups in the following molecule.

In its ring structure, which functional groups are present in glucose?

The cyclization of glucose forms a ________

A peptide bond is the result of a condensation reaction between ________

Oleic acid, shown below, is ________

Which structure contains the ketone functional group?

Matter and Energy: The Origin of the Universe

Atoms, Ions, and Molecules: Matter Starts Here

Stoichiometry: Mass, Formulas, and Reactions

Solution Chemistry: The Hydrosphere

Thermochemistry: Energy Changes in Reactions

Properties of Gases: The Air We Breathe

A Quantum Model of Atoms: Waves and Particles

Chemical Bonds: What Makes a Gas a Greenhouse Gas

Molecular Geometry: Shape Determines Function

Intermolecular Forces: The Uniqueness of Water

Solutions: Properties and Behavior

Solids: Crystals, Alloys, and Polymers

Chemical Kinetics: Reactions in the Atmosphere

Chemical Equilibrium: How Much Product Does a Reaction Really Make

Acidbase Equilibria: Proton Transfer in Biological Systems

Additional Aqueous Equilibria: Chemistry and the Oceans

Thermodynamics: Spontaneous and Nonspontaneous Reactions and Processes

Electrochemistry: The Quest for Clean Energy

Nuclear Chemistry: Applications to Energy and Medicine

The Main Group Elements: Life and the Periodic Table

Transition Metals: Biological and Medical Applications

Filters