Question 1

A nucleotide has the following general structure. What are the names of the components labeled 1-3 in this structure?

Accepted Answer

a. 1 = Phosphate group
b. 2 = Sugar group
c. 3 = Nitrogenous base

Question 2

Which of the following molecules do not exhibit quaternary structure? Select any that apply.

Accepted Answer

A)  Haemoglobin 
B)  Glycine 
C)  The ribosome 
D)  tRNA 
E)  Cholesterol 
A)  Haemoglobin 
B)  Glycine 
C)  The ribosome 
D)  tRNA 
E)  Cholesterol B,D,E

Question 3

Which of the following is the correct general structure for an amino acid?

Accepted Answer

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

Question 4

Fats and oils are types of which organic compound?

Accepted Answer

A)  Triacylglycerols 
B)  Glycerophospholipids 
C)  Fatty acids 
D)  Polysaccharides 
E)  Polypeptides 
A)  Triacylglycerols 
B)  Glycerophospholipids 
C)  Fatty acids 
D)  Polysaccharides 
E)  Polypeptides

Question 5

Match the following structural formulae of amino acid side chains with the correct names of the amino acids that possess them.
-Phenylalanine

Accepted Answer

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

Question 6

Match the following structural formulae of amino acid side chains with the correct names of the amino acids that possess them.
-Methionine

Accepted Answer

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

Question 7

Which of the following is the name of the type of bond linking monosaccharide units in a sugar?

Accepted Answer

A)  Peptide bond 
B)  Glycosidic bond 
C)  Phosphodiester bond 
D)  Disulfide bond 
E)  Hydrogen bond 
A)  Peptide bond 
B)  Glycosidic bond 
C)  Phosphodiester bond 
D)  Disulfide bond 
E)  Hydrogen bond

Question 8

Which of the following is the correct description of a saturated fat?

Accepted Answer

A)  A fat comprising fatty acids that contain one double carbon-carbon bond 
B)  A fat comprising fatty acids that contain only single carbon-carbon bond 
C)  A fat comprising fatty acids that contain more than one double carbon-carbon bond 
D)  A fat comprising fatty acids that contain alternating single and double carbon-carbon bonds 
A)  A fat comprising fatty acids that contain one double carbon-carbon bond 
B)  A fat comprising fatty acids that contain only single carbon-carbon bond 
C)  A fat comprising fatty acids that contain more than one double carbon-carbon bond 
D)  A fat comprising fatty acids that contain alternating single and double carbon-carbon bonds

Question 9

Polypeptides are polymers of which group of compounds?

Accepted Answer

A)  Nucleotides 
B)  Monosaccharides 
C)  Amino acids 
D)  Sterols 
E)  Alcohols 
A)  Nucleotides 
B)  Monosaccharides 
C)  Amino acids 
D)  Sterols 
E)  Alcohols

Question 10

Which of the following statements about nucleotides and nucleic acids are false? Select all that apply.

Accepted Answer

A)  deoxyribose 
B)  The nitrogenous base of a nucleotide is hydrophobic 
C)  Nucleotides join to form nucleic acids via peptide bonds 
D)  The sugar and phosphate groups of a nucleotide lie on the inside of the DNA helix 
E)  The two base pairs in DNA are adenine : thymine and cytosine : guanine 
A)  deoxyribose 
B)  The nitrogenous base of a nucleotide is hydrophobic 
C)  Nucleotides join to form nucleic acids via peptide bonds 
D)  The sugar and phosphate groups of a nucleotide lie on the inside of the DNA helix 
E)  The two base pairs in DNA are adenine : thymine and cytosine : guanine

Question 11

Match the following structural formulae of amino acid side chains with the correct names of the amino acids that possess them.
-Aspartic acid

Accepted Answer

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

Question 12

Nucleotides have which one of the following functions, in addition to being components of the nucleic acids DNA and RNA?

Accepted Answer

A)  They transport cholesterol in the bloodstream 
B)  They act as a hormone, triggering the breakdown of glycogen to release glucose 
C)  They form a component of the cell membrane, and help to maintain its fluidity 
D)  They act as a store of energy to help power biochemical reactions 
A)  They transport cholesterol in the bloodstream 
B)  They act as a hormone, triggering the breakdown of glycogen to release glucose 
C)  They form a component of the cell membrane, and help to maintain its fluidity 
D)  They act as a store of energy to help power biochemical reactions

Question 13

Match the following structural formulae of amino acid side chains with the correct names of the amino acids that possess them.
-Serine

Accepted Answer

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

Question 14

Match the following structural formulae of amino acid side chains with the correct names of the amino acids that possess them.
-Valine

Accepted Answer

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

Question 15

Which one of the following polymers of glucose is the form in which glucose is stored in the human body?

Accepted Answer

A)  Amylose 
B)  Amylopectin 
C)  Cellulose 
D)  Glycogen 
E)  Fat 
A)  Amylose 
B)  Amylopectin 
C)  Cellulose 
D)  Glycogen 
E)  Fat

Question 16

Sugars possess which two of the following functional groups?

Accepted Answer

A)  Carbonyl group 
B)  Amino group 
C)  Thiol group 
D)  Alkoxyl group 
E)  Hydroxy group 
A)  Carbonyl group 
B)  Amino group 
C)  Thiol group 
D)  Alkoxyl group 
E)  Hydroxy group

Question 17

Which of the following amino acid residues act as helix disrupters? Select all that apply.

Accepted Answer

A)  Serine 
B)  Threonine 
C)  Glycine 
D)  Proline 
E)  Phenylalanine 
A)  Serine 
B)  Threonine 
C)  Glycine 
D)  Proline 
E)  Phenylalanine

Question 18

Match the following types of bond with the organic compounds that they are found within.
-Phosphodiester bond

Accepted Answer

A)  Polypeptides 
B)  Nucleic acids 
C)  Carbohydrates 
A)  Polypeptides 
B)  Nucleic acids 
C)  Carbohydrates

Question 19

Which of the following statements about triacylglycerols is true?

Accepted Answer

A)  Triacylglycerols with high saturated fatty acid content exist as solids at room temperature 
B)  Triacylglycerols with high unsaturated fatty acid content are known as fats 
C)  Triacylglycerols are also called fatty acids 
D)  Triacylglycerols contain only single carbon-carbon bonds 
A)  Triacylglycerols with high saturated fatty acid content exist as solids at room temperature 
B)  Triacylglycerols with high unsaturated fatty acid content are known as fats 
C)  Triacylglycerols are also called fatty acids 
D)  Triacylglycerols contain only single carbon-carbon bonds

Question 20

An amino acid possesses which two of the following functional groups?

Accepted Answer

A)  Amino group 
B)  Thiol group 
C)  Amide group 
D)  Carboxyl group 
E)  Alkoxy group 
A)  Amino group 
B)  Thiol group 
C)  Amide group 
D)  Carboxyl group 
E)  Alkoxy group

A nucleotide has the following general structure. What are the names of the components labeled 1-3 in this structure?

Which of the following molecules do not exhibit quaternary structure? Select any that apply.

Which of the following is the correct general structure for an amino acid?

Fats and oils are types of which organic compound?

Match the following structural formulae of amino acid side chains with the correct names of the amino acids that possess them. -Phenylalanine

Match the following structural formulae of amino acid side chains with the correct names of the amino acids that possess them. -Methionine

Which of the following is the name of the type of bond linking monosaccharide units in a sugar?

Which of the following is the correct description of a saturated fat?

Polypeptides are polymers of which group of compounds?

Which of the following statements about nucleotides and nucleic acids are false? Select all that apply.

Match the following structural formulae of amino acid side chains with the correct names of the amino acids that possess them. -Aspartic acid

Nucleotides have which one of the following functions, in addition to being components of the nucleic acids DNA and RNA?

Match the following structural formulae of amino acid side chains with the correct names of the amino acids that possess them. -Serine

Match the following structural formulae of amino acid side chains with the correct names of the amino acids that possess them. -Valine

Which one of the following polymers of glucose is the form in which glucose is stored in the human body?

Sugars possess which two of the following functional groups?

Which of the following amino acid residues act as helix disrupters? Select all that apply.

Match the following types of bond with the organic compounds that they are found within. -Phosphodiester bond

Which of the following statements about triacylglycerols is true?

An amino acid possesses which two of the following functional groups?

Chemical Analysis: Characterizing Chemical Compounds

Acids, Bases, and Buffer Solutions: Life in an Aqueous Environment

Kinetics: What Affects the Speed of a Reaction

Equilibria: How Far Do Reactions Go

Energy: What Makes Reactions Go

Reaction Mechanisms: The Chemical Changes That Drive the Chemistry of Life

Chemical Reactions, Oxidation, and Reduction: Bringing Molecules to Life

Metals in Biology: Life Beyond Carbon

Isomerism: Generating Chemical Variety

Molecular Shape and Structure: Life in Three Dimensions

Functional Groups: Adding Function to the Framework of Life

Hydrocarbons: The Framework of Life

Moles, Concentrations, and Dilutions: Making Sense of Chemical Numbers

Molecular Interactions: Holding It All Together

Compounds and Chemical Bonding: Bringing Atoms Together

Atoms: The Foundations of Life

Introduction: Why Biologists Need Chemistry

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Exam 10: Biological Macromolecules: The Infrastructure of Life

A nucleotide has the following general structure. What are the names of the components labeled 1-3 in this structure?

Which of the following molecules do not exhibit quaternary structure? Select any that apply.

Which of the following is the correct general structure for an amino acid?

Fats and oils are types of which organic compound?

Match the following structural formulae of amino acid side chains with the correct names of the amino acids that possess them. -Phenylalanine

Match the following structural formulae of amino acid side chains with the correct names of the amino acids that possess them. -Methionine

Which of the following is the name of the type of bond linking monosaccharide units in a sugar?

Which of the following is the correct description of a saturated fat?

Polypeptides are polymers of which group of compounds?

Which of the following statements about nucleotides and nucleic acids are false? Select all that apply.

Match the following structural formulae of amino acid side chains with the correct names of the amino acids that possess them. -Aspartic acid

Nucleotides have which one of the following functions, in addition to being components of the nucleic acids DNA and RNA?

Match the following structural formulae of amino acid side chains with the correct names of the amino acids that possess them. -Serine

Match the following structural formulae of amino acid side chains with the correct names of the amino acids that possess them. -Valine

Which one of the following polymers of glucose is the form in which glucose is stored in the human body?

Sugars possess which two of the following functional groups?

Which of the following amino acid residues act as helix disrupters? Select all that apply.

Match the following types of bond with the organic compounds that they are found within. -Phosphodiester bond

Which of the following statements about triacylglycerols is true?

An amino acid possesses which two of the following functional groups?

Chemical Analysis: Characterizing Chemical Compounds

Acids, Bases, and Buffer Solutions: Life in an Aqueous Environment

Kinetics: What Affects the Speed of a Reaction

Equilibria: How Far Do Reactions Go

Energy: What Makes Reactions Go

Reaction Mechanisms: The Chemical Changes That Drive the Chemistry of Life

Chemical Reactions, Oxidation, and Reduction: Bringing Molecules to Life

Metals in Biology: Life Beyond Carbon

Isomerism: Generating Chemical Variety

Molecular Shape and Structure: Life in Three Dimensions

Functional Groups: Adding Function to the Framework of Life

Hydrocarbons: The Framework of Life

Moles, Concentrations, and Dilutions: Making Sense of Chemical Numbers

Molecular Interactions: Holding It All Together

Compounds and Chemical Bonding: Bringing Atoms Together

Atoms: The Foundations of Life

Introduction: Why Biologists Need Chemistry

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