Question 1

Use the following figure to answer the questions below.
  
-Which functional group shown above is characteristic of alcohols?

Accepted Answer

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

Question 2

Of the biologically important functional groups listed below,which is not reactive but serves as a tag or marker?

Accepted Answer

A) hydroxyl 
B) carboxyl 
C) amino 
D) sulfhydryl 
E) methyl 
A) hydroxyl 
B) carboxyl 
C) amino 
D) sulfhydryl 
E) methyl E

Question 3

Which functional groups can act as acids?

Accepted Answer

A) amino and sulfhydryl 
B) carbonyl and carboxyl 
C) carboxyl and phosphate 
D) hydroxyl and aldehyde 
E) ketone and amino 
A) amino and sulfhydryl 
B) carbonyl and carboxyl 
C) carboxyl and phosphate 
D) hydroxyl and aldehyde 
E) ketone and amino C

Question 4

A compound contains hydroxyl groups as its predominant functional group.Which of the following statements is true concerning this compound?

Accepted Answer

A) It lacks an asymmetric carbon, and it is probably a fat or lipid. 
B) It should dissolve in water. 
C) It should dissolve in a nonpolar solvent. 
D) It won't form hydrogen bonds with water. 
E) It is hydrophobic. 
A) It lacks an asymmetric carbon, and it is probably a fat or lipid. 
B) It should dissolve in water. 
C) It should dissolve in a nonpolar solvent. 
D) It won't form hydrogen bonds with water. 
E) It is hydrophobic.

Question 5

Which model best depicts a molecule's volume?

Accepted Answer

A) atomic 
B) molecular 
C) structural 
D) ball-and-stick 
E) space-filling 
A) atomic 
B) molecular 
C) structural 
D) ball-and-stick 
E) space-filling

Question 6

What is the abbreviated structural formula good at showing?

Accepted Answer

A) The carbon skeleton and functional groups of complex organic molecules. 
B) Multiple sequential stereocentres. 
C) Functional groups directly above or below the carbon ring atom. 
D) Axial and equatorial positioning of functional groups. 
E) Stereochemistry. 
A) The carbon skeleton and functional groups of complex organic molecules. 
B) Multiple sequential stereocentres. 
C) Functional groups directly above or below the carbon ring atom. 
D) Axial and equatorial positioning of functional groups. 
E) Stereochemistry.

Question 7

Research indicates that ibuprofen,a drug used to relieve inflammation and pain,is a mixture of two enantiomers,that is,molecules that

Accepted Answer

A) have identical chemical formulas but differ in the branching of their carbon skeletons. 
B) are mirror images of one another. 
C) exist in either linear chain or ring forms. 
D) differ in the location of their double bonds. 
E) differ in the arrangement of atoms around their double bonds. 
A) have identical chemical formulas but differ in the branching of their carbon skeletons. 
B) are mirror images of one another. 
C) exist in either linear chain or ring forms. 
D) differ in the location of their double bonds. 
E) differ in the arrangement of atoms around their double bonds.

Question 8

Which of the pairs of molecular structures shown below do not depict enantiomers (enantiomeric forms)of the same molecule?

Accepted Answer

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

Question 9

What determines whether a carbon atom's covalent bonds to other atoms are in a tetrahedral configuration or a planar configuration?

Accepted Answer

A) the presence or absence of bonds with oxygen atoms 
B) the presence or absence of double bonds between the carbon atom and other atoms 
C) the polarity of the covalent bonds between carbon and other atoms 
D) the presence or absence of bonds with nitrogen atoms 
E) the solvent that the organic molecule is dissolved in 
A) the presence or absence of bonds with oxygen atoms 
B) the presence or absence of double bonds between the carbon atom and other atoms 
C) the polarity of the covalent bonds between carbon and other atoms 
D) the presence or absence of bonds with nitrogen atoms 
E) the solvent that the organic molecule is dissolved in

Question 10

Use the following figure to answer the questions below.
  
-Which of the groups shown above is a carbonyl functional group?

Accepted Answer

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

Question 11

Use the following figure to answer the questions below.
  
-Which molecule shown above has a carbonyl functional group in the form of an aldehyde?

Accepted Answer

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

Question 12

Use the following information to answer the questions below.
You are investigating the differences between three organic compounds.They all have the same carbon skeleton but have differences in their functional groups.
-The third molecule displays both acidic and basic properties.It most likely has

Accepted Answer

A) at least one carboxyl group. 
B) at least one amino group. 
C) at least one hydroxyl group. 
D) both an amino and a carboxyl group. 
E) both an hydroxyl and a carboxyl group. 
A) at least one carboxyl group. 
B) at least one amino group. 
C) at least one hydroxyl group. 
D) both an amino and a carboxyl group. 
E) both an hydroxyl and a carboxyl group.

Question 13

Use the following figure to answer the questions below.
  
-Which molecule shown above can form a dimer linked by a covalent bond?

Accepted Answer

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

Question 14

What is an important source of the molecular complexity and diversity of living matter?

Accepted Answer

A) The unique properties of water. 
B) The variation in carbon skeletons. 
C) The non-polar nature of hydrocarbons. 
D) The diversity of elements on Earth. 
E) Evolution. 
A) The unique properties of water. 
B) The variation in carbon skeletons. 
C) The non-polar nature of hydrocarbons. 
D) The diversity of elements on Earth. 
E) Evolution.

Question 15

Use the following figure to answer the questions below.
  
-Which molecule(s)shown above is (are)ionized in aqueous solution at pH 7?

Accepted Answer

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

Question 16

Which model best depicts the angles between atoms in a molecule?

Accepted Answer

A) atomic 
B) molecular 
C) structural 
D) ball-and-stick 
E) space-filling 
A) atomic 
B) molecular 
C) structural 
D) ball-and-stick 
E) space-filling

Question 17

Use the following figure to answer the questions below.
  
-Which molecule shown above contains an amino functional group,but is not an amino acid?

Accepted Answer

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

Question 18

Which of the following is a false statement concerning amino groups?

Accepted Answer

A) They are basic in pH. 
B) They are found in amino acids. 
C) They contain nitrogen. 
D) They are nonpolar. 
E) They are components of urea. 
A) They are basic in pH. 
B) They are found in amino acids. 
C) They contain nitrogen. 
D) They are nonpolar. 
E) They are components of urea.

Question 19

Use the following figure to answer the questions below.
  
-In which of the structures illustrated above are the atoms bonded by ionic bonds?

Accepted Answer

A) A 
B) B 
C) C 
D) C, D, and E only 
E) none of the structures 
A) A 
B) B 
C) C 
D) C, D, and E only 
E) none of the structures

Question 20

Use the following figure to answer the questions below.
  
-Which of the structures illustrated above cannot form hydrogen bonds with water molecules?

Accepted Answer

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

Exam 4: Carbon and the Molecular Diversity of Life

Use the following figure to answer the questions below. -Which functional group shown above is characteristic of alcohols?

Of the biologically important functional groups listed below,which is not reactive but serves as a tag or marker?

Which functional groups can act as acids?

A compound contains hydroxyl groups as its predominant functional group.Which of the following statements is true concerning this compound?

Which model best depicts a molecule's volume?

What is the abbreviated structural formula good at showing?

Research indicates that ibuprofen,a drug used to relieve inflammation and pain,is a mixture of two enantiomers,that is,molecules that

Which of the pairs of molecular structures shown below do not depict enantiomers (enantiomeric forms)of the same molecule?

What determines whether a carbon atom's covalent bonds to other atoms are in a tetrahedral configuration or a planar configuration?

Use the following figure to answer the questions below. -Which of the groups shown above is a carbonyl functional group?

Use the following figure to answer the questions below. -Which molecule shown above has a carbonyl functional group in the form of an aldehyde?

Use the following information to answer the questions below. You are investigating the differences between three organic compounds.They all have the same carbon skeleton but have differences in their functional groups. -The third molecule displays both acidic and basic properties.It most likely has

Use the following figure to answer the questions below. -Which molecule shown above can form a dimer linked by a covalent bond?

What is an important source of the molecular complexity and diversity of living matter?

Use the following figure to answer the questions below. -Which molecule(s)shown above is (are)ionized in aqueous solution at pH 7?

Which model best depicts the angles between atoms in a molecule?

Use the following figure to answer the questions below. -Which molecule shown above contains an amino functional group,but is not an amino acid?

Which of the following is a false statement concerning amino groups?

Use the following figure to answer the questions below. -In which of the structures illustrated above are the atoms bonded by ionic bonds?

Use the following figure to answer the questions below. -Which of the structures illustrated above cannot form hydrogen bonds with water molecules?

Introduction: Evolution and Themes of Biology

The Chemical Context of Life

Water and Life

The Structure and Function of Large Biological Molecules

A Tour of the Cell

Membrane Structure and Function

An Introduction to Metabolism

Cellular Respiration and Fermentation

Photosynthesis

Cell Communication

The Cell Cycle

Meiosis and Sexual Life Cycles

Mendel and the Gene Idea

The Chromosomal Basis of Inheritance

The Molecular Basis of Inheritance

From Gene to Protein

Regulation of Gene Expression

Viruses

DNA Tools and Biotechnology

Genomes and Their Evolution

Descent with Modification: A Darwinian View of Life

The Evolution of Populations

The Origin of Species

The History of Life on Earth

Phylogeny and the Tree of Life

Bacteria and Archaea

Protists

Plant Diversity I: How Plants Colonized Land

Plant Diversity II: The Evolution of Seed Plants

Fungi

An Overview of Animal Diversity

An Introduction to Invertebrates

The Origin and Evolution of Vertebrates

Plant Structure,Growth,and Development

Resource Acquisition and Transport in Vascular Plants

Soil and Plant Nutrition

Angiosperm Reproduction and Biotechnology

Plant Responses to Internal and External Signals

Basic Principles of Animal Form and Function

Animal Nutrition

Circulation and Gas Exchange

The Immune System

Osmoregulation and Excretion

Hormones and the Endocrine System

Animal Reproduction

Animal Development

Neurons,Synapses,and Signalling

Nervous Systems

Sensory and Motor Mechanisms

Animal Behaviour

An Introduction to Ecology and the Biosphere

Population Ecology

Community Ecology

Ecosystems and Restoration Ecology

Conservation Biology and Global Change

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