Question 1

Which monosaccharide combines with glucose to form the disaccharide lactose?

Accepted Answer

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

Question 2

What is the principal carbohydrate found in milk?

Accepted Answer

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

Question 3

The Fischer projection for the monosaccharide ribulose is shown below.How may this monosaccharide be appropriately classified?

Accepted Answer

A) ketotetrose 
B) ketopentose 
C) aldotriose 
D) aldopentose 
E) ketotriose 
A) ketotetrose 
B) ketopentose 
C) aldotriose 
D) aldopentose 
E) ketotriose

Question 4

A ketose can be converted to an aldose through an enediol intermediate.What is the structure of the enediol intermediate when D-fructose is converted to D-glucose?

Accepted Answer

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

Question 5

What is the simplest type of carbohydrate?

Accepted Answer

A) sugars 
B) monosaccharides 
C) cellulose 
D) starch 
E) None of the choices are correct. 
A) sugars 
B) monosaccharides 
C) cellulose 
D) starch 
E) None of the choices are correct.

Question 6

Enantiomers are related as non-superimposable mirror images.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following is the major storage molecule of glucose in animals?

Accepted Answer

A) cellulose 
B) sucrose 
C) blood sugar 
D) amylose 
E) glycogen 
A) cellulose 
B) sucrose 
C) blood sugar 
D) amylose 
E) glycogen

Question 8

What term describes carbohydrates consisting of two to ten monosaccharide units bonded together?

Accepted Answer

A) disaccharide 
B) polysaccharide 
C) oligosaccharide 
D) glycogen 
E) starch 
A) disaccharide 
B) polysaccharide 
C) oligosaccharide 
D) glycogen 
E) starch

Question 9

Which of the following is NOT a term that would properly describe glucose as it is shown below?

Accepted Answer

A) monosaccharide 
B) aldose 
C) hemiacetal 
D) D-sugar 
E) reducing sugar 
A) monosaccharide 
B) aldose 
C) hemiacetal 
D) D-sugar 
E) reducing sugar

Question 10

What is the name of the simplest ketose?

Accepted Answer

A) acetone 
B) fructose 
C) ethanone 
D) 1,3-dihydroxyacetone 
E) ethose 
A) acetone 
B) fructose 
C) ethanone 
D) 1,3-dihydroxyacetone 
E) ethose

Question 11

What heteropolysaccharide is a component of cartilage and may relieve symptoms of osteoarthritis?

Accepted Answer

A) chondroitin sulfate 
B) hyaluronic acid 
C) heparin 
D) glycogen 
E) α-D-glucuronate 
A) chondroitin sulfate 
B) hyaluronic acid 
C) heparin 
D) glycogen 
E) α-D-glucuronate

Question 12

Which monosaccharide found in the blood has its concentration regulated by the hormones insulin and glucagon?

Accepted Answer

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

Question 13

Which statement concerning a chiral carbon is always TRUE?

Accepted Answer

A) A chiral carbon is bonded to four different atoms or groups of atoms. 
B) A chiral carbon is bonded to a hydroxyl group and carbonyl group. 
C) A chiral carbon has two double bonds connected to it. 
D) A chiral carbon causes plane-polarized light to rotate in a clockwise fashion. 
E) A chiral carbon is present in all aldehydes. 
A) A chiral carbon is bonded to four different atoms or groups of atoms. 
B) A chiral carbon is bonded to a hydroxyl group and carbonyl group. 
C) A chiral carbon has two double bonds connected to it. 
D) A chiral carbon causes plane-polarized light to rotate in a clockwise fashion. 
E) A chiral carbon is present in all aldehydes.

Question 14

For D-glyceraldehyde shown below, which carbon, if any, is chiral?

Accepted Answer

A) C-1 
B) C-2 and C-3 
C) C-2 
D) None of the carbon atoms are chiral. 
E) C-3 
A) C-1 
B) C-2 and C-3 
C) C-2 
D) None of the carbon atoms are chiral. 
E) C-3

Question 15

A laboratory sample contains enantiomers present in equal concentrations.Which of the following statements concerning this sample is FALSE?

Accepted Answer

A) The sample contains a racemic mixture. 
B) The sample will be optically inactive. 
C) The sample contains two different compounds related as non-superimposable mirror image isomers. 
D) The sample contains a meso compound. 
A) The sample contains a racemic mixture. 
B) The sample will be optically inactive. 
C) The sample contains two different compounds related as non-superimposable mirror image isomers. 
D) The sample contains a meso compound.

Question 16

What is the position of the -OH group on carbon-1 in the Haworth projection of β-D-glucose?

Accepted Answer

A) above the ring 
B) below the ring 
C) in the plane of the ring 
D) to the left of carbon-1 
E) to the right of carbon-1 
A) above the ring 
B) below the ring 
C) in the plane of the ring 
D) to the left of carbon-1 
E) to the right of carbon-1

Question 17

To what class of carbonyl-containing compounds does glucose belong?

Accepted Answer

A) aldehyde 
B) ketone 
C) alcohol 
D) amide 
E) Both aldehyde and ketone are correct. 
A) aldehyde 
B) ketone 
C) alcohol 
D) amide 
E) Both aldehyde and ketone are correct.

Question 18

What is the stereochemical relationship between your right and left hands?

Accepted Answer

A) cis- and trans- isomers 
B) structural isomers 
C) conformers 
D) enantiomers 
E) diastereomers 
A) cis- and trans- isomers 
B) structural isomers 
C) conformers 
D) enantiomers 
E) diastereomers

Question 19

What two functional groups are present in all monosaccharides?

Accepted Answer

A) hydroxyl and carboxyl 
B) alkene and phosphate 
C) acid and carbonyl 
D) amino and hydroxyl 
E) hydroxyl and carbonyl 
A) hydroxyl and carboxyl 
B) alkene and phosphate 
C) acid and carbonyl 
D) amino and hydroxyl 
E) hydroxyl and carbonyl

Question 20

What term is used to describe an excess of glucose in a urine sample?

Accepted Answer

A) glucosamine 
B) glucosemia 
C) glucosuria 
D) hypoglucose 
E) glucagon 
A) glucosamine 
B) glucosemia 
C) glucosuria 
D) hypoglucose 
E) glucagon

Exam 16: Carbohydrates

Which monosaccharide combines with glucose to form the disaccharide lactose?

What is the principal carbohydrate found in milk?

The Fischer projection for the monosaccharide ribulose is shown below.How may this monosaccharide be appropriately classified?

A ketose can be converted to an aldose through an enediol intermediate.What is the structure of the enediol intermediate when D-fructose is converted to D-glucose?

What is the simplest type of carbohydrate?

Enantiomers are related as non-superimposable mirror images.

Which of the following is the major storage molecule of glucose in animals?

What term describes carbohydrates consisting of two to ten monosaccharide units bonded together?

Which of the following is NOT a term that would properly describe glucose as it is shown below?

What is the name of the simplest ketose?

What heteropolysaccharide is a component of cartilage and may relieve symptoms of osteoarthritis?

Which monosaccharide found in the blood has its concentration regulated by the hormones insulin and glucagon?

Which statement concerning a chiral carbon is always TRUE?

For D-glyceraldehyde shown below, which carbon, if any, is chiral?

A laboratory sample contains enantiomers present in equal concentrations.Which of the following statements concerning this sample is FALSE?

What is the position of the -OH group on carbon-1 in the Haworth projection of β-D-glucose?

To what class of carbonyl-containing compounds does glucose belong?

What is the stereochemical relationship between your right and left hands?

What two functional groups are present in all monosaccharides?

What term is used to describe an excess of glucose in a urine sample?

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

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