Question 1

Which arrow is pointing to a glycosidic bond?

Accepted Answer

A)  a only 
B)  b only 
C)  c only 
D)  b and c 
E)  b, c, and d 
A)  a only 
B)  b only 
C)  c only 
D)  b and c 
E)  b, c, and d

Question 2

Which disaccharide is found in milk?

Accepted Answer

A)  lactose 
B)  sucrose 
C)  cellobiose 
D)  maltose 
E)  both cellobiose and maltose 
A)  lactose 
B)  sucrose 
C)  cellobiose 
D)  maltose 
E)  both cellobiose and maltose

Question 3

Only one of the following molecules is a naturally occurring sugar.Which statement is a reason that only one of the sugars is naturally occurring?

Accepted Answer

A)  Naturally occurring sugars do not have multiple hydroxyl groups on a single carbon. 
B)  D-sugars are much more common than L-sugars. 
C)  Naturally occurring sugars are polyhydroxylated. 
D)  Naturally occurring sugars contain a carbonyl. 
E)  All of the above are true statements. 
A)  Naturally occurring sugars do not have multiple hydroxyl groups on a single carbon. 
B)  D-sugars are much more common than L-sugars. 
C)  Naturally occurring sugars are polyhydroxylated. 
D)  Naturally occurring sugars contain a carbonyl. 
E)  All of the above are true statements.

Question 4

The most common polysaccharides found in plants and animals are polymers of

Accepted Answer

A)  galactose. 
B)  glucose. 
C)  fructose. 
D)  glucose and fructose. 
E)  glucose, fructose, and galactose. 
A)  galactose. 
B)  glucose. 
C)  fructose. 
D)  glucose and fructose. 
E)  glucose, fructose, and galactose.

Question 5

D-glucose is shown below.Which of the choices below is L-glucose?

Accepted Answer

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

Question 6

A racemic mixture is

Accepted Answer

A)  a 50:50 mixture of enantiomers. 
B)  optically active. 
C)  a pure sample of a single enantiomer. 
D)  dextrorotatory. 
E)  indicated by the IUPAC prefix R. 
A)  a 50:50 mixture of enantiomers. 
B)  optically active. 
C)  a pure sample of a single enantiomer. 
D)  dextrorotatory. 
E)  indicated by the IUPAC prefix R.

Question 7

Which glycosidic linkage does the sugar shown below contain?

Accepted Answer

A)  β-(2→4) 
B)  α-(1→4) 
C)  β-(1→4) 
D)  α-(2→4) 
E)  α-(2→6) 
A)  β-(2→4) 
B)  α-(1→4) 
C)  β-(1→4) 
D)  α-(2→4) 
E)  α-(2→6)

Question 8

Which of the following molecules is NOT a polysaccharide?

Accepted Answer

A)  amylose 
B)  amylopectin 
C)  cellulose 
D)  glycogen 
E)  glucose 
A)  amylose 
B)  amylopectin 
C)  cellulose 
D)  glycogen 
E)  glucose

Question 9

How are disaccharides separated into two monosaccharides?

Accepted Answer

A)  It is not possible to separate disaccharides into monosaccharides. 
B)  by esterification 
C)  by hydration 
D)  by hydrolysis 
E)  by amidation 
A)  It is not possible to separate disaccharides into monosaccharides. 
B)  by esterification 
C)  by hydration 
D)  by hydrolysis 
E)  by amidation

Question 10

The result of a patient's fasting plasma glucose test is 60 mg glucose per deciliter.This patient is

Accepted Answer

A)  normal. 
B)  hypoglycemic. 
C)  hyperglycemic. 
D)  diabetic. 
E)  both hyperglycemic and diabetic. 
A)  normal. 
B)  hypoglycemic. 
C)  hyperglycemic. 
D)  diabetic. 
E)  both hyperglycemic and diabetic.

Question 11

What is the relationship between the two molecules shown?

Accepted Answer

A)  identical molecules 
B)  isomers 
C)  enantiomers 
D)  conformations 
E)  diastereomers 
A)  identical molecules 
B)  isomers 
C)  enantiomers 
D)  conformations 
E)  diastereomers

Question 12

Select the species present in higher concentration at equilibrium in aqueous solution.

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  II and III 
E)  There are equal concentrations of these three species in solution. 
A)  I 
B)  II 
C)  III 
D)  II and III 
E)  There are equal concentrations of these three species in solution.

Question 13

Which statement BEST describes how a cell distinguishes between a host cell and foreign cell?

Accepted Answer

A)  Antibodies detect foreign cells. 
B)  This is what T-cells do. 
C)  Oligosaccharide cell markers on the surface of the cell do this. 
D)  A cell sends out special proteins to do this. 
E)  The proteins within the cell membrane do this. 
A)  Antibodies detect foreign cells. 
B)  This is what T-cells do. 
C)  Oligosaccharide cell markers on the surface of the cell do this. 
D)  A cell sends out special proteins to do this. 
E)  The proteins within the cell membrane do this.

Question 14

Which of the following blood types can be donated to someone with type A blood?

Accepted Answer

A)  type A only 
B)  type A or type O 
C)  type A or type AB 
D)  any of the blood types except A 
E)  Type A can receive blood from any of the blood types. 
A)  type A only 
B)  type A or type O 
C)  type A or type AB 
D)  any of the blood types except A 
E)  Type A can receive blood from any of the blood types.

Question 15

Which one of these molecules is a naturally occurring sugar?

Accepted Answer

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

Question 16

Which of the following classes of biomolecules causes dental caries?

Accepted Answer

A)  carbohydrates 
B)  proteins 
C)  fats 
D)  nucleic acids 
E)  All foods cause dental caries. 
A)  carbohydrates 
B)  proteins 
C)  fats 
D)  nucleic acids 
E)  All foods cause dental caries.

Question 17

In which of the following Haworth projections is the arrow pointing to the anomeric carbon?

Accepted Answer

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

Question 18

What is the relationship between the two molecules shown?

Accepted Answer

A)  identical molecules 
B)  isomers 
C)  enantiomers 
D)  conformations 
E)  diastereomers 
A)  identical molecules 
B)  isomers 
C)  enantiomers 
D)  conformations 
E)  diastereomers

Question 19

Cellulose and starch are similar in that they are both polymers of glucose.Cellulose, however, forms sheet-like structures, which give rigidity to a plant, whereas starch forms spirals.What accounts for this difference in macroscopic structure?

Accepted Answer

A)  Cellulose is composed of D-glucose, whereas starch is composed of L-glucose. 
B)  Cellulose and starch are connected together on different carbons. 
C)  Cellulose is composed of L-glucose, whereas starch is composed of D-glucose. 
D)  Cellulose has a β-(1→4)linkage, whereas starch has an α-(1→4)linkage. 
E)  Starch has a β-(1→4)linkage, whereas cellulose has an α-(1→4)linkage. 
A)  Cellulose is composed of D-glucose, whereas starch is composed of L-glucose. 
B)  Cellulose and starch are connected together on different carbons. 
C)  Cellulose is composed of L-glucose, whereas starch is composed of D-glucose. 
D)  Cellulose has a β-(1→4)linkage, whereas starch has an α-(1→4)linkage. 
E)  Starch has a β-(1→4)linkage, whereas cellulose has an α-(1→4)linkage.

Question 20

Which of the following is NOT a function of carbohydrates?

Accepted Answer

A)  Carbohydrates are used for long-term energy storage. 
B)  Carbohydrates are fuels for cells. 
C)  Carbohydrates are part of DNA and RNA. 
D)  Carbohydrates are used in cellular recognition. 
E)  Carbohydrates make some foods taste sweet. 
A)  Carbohydrates are used for long-term energy storage. 
B)  Carbohydrates are fuels for cells. 
C)  Carbohydrates are part of DNA and RNA. 
D)  Carbohydrates are used in cellular recognition. 
E)  Carbohydrates make some foods taste sweet.

Which arrow is pointing to a glycosidic bond?

Which disaccharide is found in milk?

Only one of the following molecules is a naturally occurring sugar.Which statement is a reason that only one of the sugars is naturally occurring?

The most common polysaccharides found in plants and animals are polymers of

D-glucose is shown below.Which of the choices below is L-glucose?

A racemic mixture is

Which glycosidic linkage does the sugar shown below contain?

Which of the following molecules is NOT a polysaccharide?

How are disaccharides separated into two monosaccharides?

The result of a patient's fasting plasma glucose test is 60 mg glucose per deciliter.This patient is

What is the relationship between the two molecules shown?

Select the species present in higher concentration at equilibrium in aqueous solution.

Which statement BEST describes how a cell distinguishes between a host cell and foreign cell?

Which of the following blood types can be donated to someone with type A blood?

Which one of these molecules is a naturally occurring sugar?

Which of the following classes of biomolecules causes dental caries?

In which of the following Haworth projections is the arrow pointing to the anomeric carbon?

What is the relationship between the two molecules shown?

Cellulose and starch are similar in that they are both polymers of glucose.Cellulose, however, forms sheet-like structures, which give rigidity to a plant, whereas starch forms spirals.What accounts for this difference in macroscopic structure?

Which of the following is NOT a function of carbohydrates?

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

The Common Organic Reactions in Biochemistry

Lipids: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

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Exam 14: Carbohydrates: Structure and Function

Which arrow is pointing to a glycosidic bond?

Which disaccharide is found in milk?

Only one of the following molecules is a naturally occurring sugar.Which statement is a reason that only one of the sugars is naturally occurring?

The most common polysaccharides found in plants and animals are polymers of

D-glucose is shown below.Which of the choices below is L-glucose?

A racemic mixture is

Which glycosidic linkage does the sugar shown below contain?

Which of the following molecules is NOT a polysaccharide?

How are disaccharides separated into two monosaccharides?

The result of a patient's fasting plasma glucose test is 60 mg glucose per deciliter.This patient is

What is the relationship between the two molecules shown?

Select the species present in higher concentration at equilibrium in aqueous solution.

Which statement BEST describes how a cell distinguishes between a host cell and foreign cell?

Which of the following blood types can be donated to someone with type A blood?

Which one of these molecules is a naturally occurring sugar?

Which of the following classes of biomolecules causes dental caries?

In which of the following Haworth projections is the arrow pointing to the anomeric carbon?

What is the relationship between the two molecules shown?

Cellulose and starch are similar in that they are both polymers of glucose.Cellulose, however, forms sheet-like structures, which give rigidity to a plant, whereas starch forms spirals.What accounts for this difference in macroscopic structure?

Which of the following is NOT a function of carbohydrates?

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

The Common Organic Reactions in Biochemistry

Lipids: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

Filters