Question 1

Carbohydrates are chiral or "handed" biomolecules.What does the term chiral describe?

Accepted Answer

A) a molecule that has a mirror image 
B) a molecule that can be superimposed on its mirror image 
C) a molecule that exists in two nonsuperimposable mirror image forms 
D) a molecule that can be digested by the body 
E) a molecule that may be synthesized by the body 
A) a molecule that has a mirror image 
B) a molecule that can be superimposed on its mirror image 
C) a molecule that exists in two nonsuperimposable mirror image forms 
D) a molecule that can be digested by the body 
E) a molecule that may be synthesized by the body

Question 2

Which of the following carbohydrates cannot be digested by humans?

Accepted Answer

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

Question 3

Which of the following correctly matches the term with its definition?

Accepted Answer

A) ketose - monosaccharide with a ketone functional group 
B) aldose - monosaccharide with a carbonyl group on the end carbon 
C) tetrose - has the formula (CH2O)n where n = 4 
D) pentose - a five carbon sugar 
E) All of the choices are correct. 
A) ketose - monosaccharide with a ketone functional group 
B) aldose - monosaccharide with a carbonyl group on the end carbon 
C) tetrose - has the formula (CH2O)n where n = 4 
D) pentose - a five carbon sugar 
E) All of the choices are correct.

Question 4

Which of the following is a nonreducing disaccharide?

Accepted Answer

A) mannose 
B) maltose 
C) sucrose 
D) lactose 
E) ribose 
A) mannose 
B) maltose 
C) sucrose 
D) lactose 
E) ribose

Question 5

Which of the following is a highly branched polymer of glucose?

Accepted Answer

A) dextran 
B) cellulose 
C) amylose 
D) amylopectin 
E) peptidoglycan 
A) dextran 
B) cellulose 
C) amylose 
D) amylopectin 
E) peptidoglycan

Question 6

Disaccharides and polysaccharides contain monosaccharide units joined together by which of the following?

Accepted Answer

A) dipole/dipole forces 
B) hydrogen bonding 
C) hemiacetal bonds 
D) glycosidic linkages 
E) peptide bonds 
A) dipole/dipole forces 
B) hydrogen bonding 
C) hemiacetal bonds 
D) glycosidic linkages 
E) peptide bonds

Question 7

The simplest aldose is named 2,3-dihydroxypropanal, although it is more commonly referred to as glyceraldehyde.What is the structure of glyceraldehyde?

Accepted Answer

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

Question 8

Which of the following is NOT a common name for D-glucose?

Accepted Answer

A) table sugar 
B) dextrose 
C) grape sugar 
D) blood sugar 
E) All of the choices are correct. 
A) table sugar 
B) dextrose 
C) grape sugar 
D) blood sugar 
E) All of the choices are correct.

Question 9

What disaccharide is composed of two glucose units joined together?

Accepted Answer

A) lactose 
B) maltose 
C) sucrose 
D) cellulose 
E) galactose 
A) lactose 
B) maltose 
C) sucrose 
D) cellulose 
E) galactose

Question 10

A meso compound is a chiral compound because it contains two chiral carbons and an internal plane of symmetry.

Accepted Answer

A) True 
 B)False

Question 11

What type of glycosidic linkage between glucose units is present in cellulose?

Accepted Answer

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

Question 12

How does the structure of α-D-glucose differ from that of β-D-glucose?

Accepted Answer

A) α-D-Glucose is an aldose and β-D-glucose is a ketose. 
B) In α-D-glucose the −OH group on the last chiral carbon is on the left, and in β-D-glucose the −OH group on the last chiral carbon is on the right. 
C) In α-D-glucose the −OH group on the hemiacetal carbon is below the ring, and in β-D-glucose the −OH group on the hemiacetal carbon is above the ring. 
D) In α-D-glucose the last −CH2OH group is on the right, and in β-D-glucose the −CH2OH group is on the left. 
E) There is no structural difference between the two. 
A) α-D-Glucose is an aldose and β-D-glucose is a ketose. 
B) In α-D-glucose the −OH group on the last chiral carbon is on the left, and in β-D-glucose the −OH group on the last chiral carbon is on the right. 
C) In α-D-glucose the −OH group on the hemiacetal carbon is below the ring, and in β-D-glucose the −OH group on the hemiacetal carbon is above the ring. 
D) In α-D-glucose the last −CH2OH group is on the right, and in β-D-glucose the −CH2OH group is on the left. 
E) There is no structural difference between the two.

Question 13

The principal carbohydrate in milk is galactose.

Accepted Answer

A) True 
 B)False

Question 14

Aldaric acids are a type of monosaccharide derivative, formed when both the aldehyde group and the terminal -CH2OH group of a monosaccharide are oxidized to carboxylic acids.D-Glucaric acid is the aldaric acid derivative of D-glucose.What is the structure of D-glucaric acid?

Accepted Answer

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

Carbohydrates are chiral or "handed" biomolecules.What does the term chiral describe?

Which of the following carbohydrates cannot be digested by humans?

Which of the following correctly matches the term with its definition?

Which of the following is a nonreducing disaccharide?

Which of the following is a highly branched polymer of glucose?

Disaccharides and polysaccharides contain monosaccharide units joined together by which of the following?

The simplest aldose is named 2,3-dihydroxypropanal, although it is more commonly referred to as glyceraldehyde.What is the structure of glyceraldehyde?

Which of the following is NOT a common name for D-glucose?

What disaccharide is composed of two glucose units joined together?

A meso compound is a chiral compound because it contains two chiral carbons and an internal plane of symmetry.

What type of glycosidic linkage between glucose units is present in cellulose?

How does the structure of α-D-glucose differ from that of β-D-glucose?

The principal carbohydrate in milk is galactose.

Aldaric acids are a type of monosaccharide derivative, formed when both the aldehyde group and the terminal -CH₂OH group of a monosaccharide are oxidized to carboxylic acids.D-Glucaric acid is the aldaric acid derivative of D-glucose.What is the structure of D-glucaric acid?

Chemistry:methods and Measurement

The Structure of the Atom and the Periodic Table

Structure and Properties of Ionic and Covalent Compounds

Calculations, Chemical Changes, and the Chemical Equation

States of Matter- Gases, Liquids, and Solids

Solutions

Energy, Rate and Equilibrium

Acids and Bases

The Nucleus, Radioactivity, and Nuclear Medicine

An Introduction to Organic Chemistry- the Saturated Hydrocarbons

The Unsaturated Hydrocarbons- Alkenes, Alkynes, and Aromatics

Alcohols, Phenols, Thiols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Carboxylic Acid Derivatives

Amines and Amides

Lipids and Their Functions in Biochemical Systems

Protein Structure and Function

Enzymes

Introduction to Molecular Genetics

Carbohydrate Metabolism

Aerobic Respiration and Energy Production

Fatty Acid Metabolism

Filters

Exam 16: Carbohydrates

Carbohydrates are chiral or "handed" biomolecules.What does the term chiral describe?

Which of the following carbohydrates cannot be digested by humans?

Which of the following correctly matches the term with its definition?

Which of the following is a nonreducing disaccharide?

Which of the following is a highly branched polymer of glucose?

Disaccharides and polysaccharides contain monosaccharide units joined together by which of the following?

The simplest aldose is named 2,3-dihydroxypropanal, although it is more commonly referred to as glyceraldehyde.What is the structure of glyceraldehyde?

Which of the following is NOT a common name for D-glucose?

What disaccharide is composed of two glucose units joined together?

A meso compound is a chiral compound because it contains two chiral carbons and an internal plane of symmetry.

What type of glycosidic linkage between glucose units is present in cellulose?

How does the structure of α-D-glucose differ from that of β-D-glucose?

The principal carbohydrate in milk is galactose.

Aldaric acids are a type of monosaccharide derivative, formed when both the aldehyde group and the terminal -CH2OH group of a monosaccharide are oxidized to carboxylic acids.D-Glucaric acid is the aldaric acid derivative of D-glucose.What is the structure of D-glucaric acid?

Chemistry:methods and Measurement

The Structure of the Atom and the Periodic Table

Structure and Properties of Ionic and Covalent Compounds

Calculations, Chemical Changes, and the Chemical Equation

States of Matter- Gases, Liquids, and Solids

Solutions

Energy, Rate and Equilibrium

Acids and Bases

The Nucleus, Radioactivity, and Nuclear Medicine

An Introduction to Organic Chemistry- the Saturated Hydrocarbons

The Unsaturated Hydrocarbons- Alkenes, Alkynes, and Aromatics

Alcohols, Phenols, Thiols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Carboxylic Acid Derivatives

Amines and Amides

Lipids and Their Functions in Biochemical Systems

Protein Structure and Function

Enzymes

Introduction to Molecular Genetics

Carbohydrate Metabolism

Aerobic Respiration and Energy Production

Fatty Acid Metabolism

Filters

Aldaric acids are a type of monosaccharide derivative, formed when both the aldehyde group and the terminal -CH₂OH group of a monosaccharide are oxidized to carboxylic acids.D-Glucaric acid is the aldaric acid derivative of D-glucose.What is the structure of D-glucaric acid?