Question 1

How many different substituents are required on a carbon atom for it to be chiral?

Accepted Answer

A) one 
B) two 
C) three 
D) four 
E) Any number from 1 to 4; chiralty does not depend on substitution. 
A) one 
B) two 
C) three 
D) four 
E) Any number from 1 to 4; chiralty does not depend on substitution.

Question 2

Which of the following objects is chiral? Assume that each object has no markings or printing.

Accepted Answer

A) an pencil 
B) a baseball bat 
C) a glove 
D) a hockey puck 
E) a drinking glass 
A) an pencil 
B) a baseball bat 
C) a glove 
D) a hockey puck 
E) a drinking glass

Question 3

Which of the following contains a β-1,4-glycosidic bond?

Accepted Answer

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

Question 4

Which group of carbohydrates cannot be hydrolyzed to give simpler carbohydrates?

Accepted Answer

A) monosaccharides 
B) disaccharides 
C) trisaccharides 
D) tetrasaccharides 
E) polysaccharides 
A) monosaccharides 
B) disaccharides 
C) trisaccharides 
D) tetrasaccharides 
E) polysaccharides

Question 5

In beta-glucose,the new -OH group is above the plane of the ring.

Accepted Answer

A) True 
 B)False

Question 6

A monosaccharide that consists of 5 carbon atoms,one of which is in a ketone group,is classified as a(n)________.

Accepted Answer

A) aldotetrose 
B) aldopentose 
C) aldohexose 
D) ketotetrose 
E) ketopentose 
A) aldotetrose 
B) aldopentose 
C) aldohexose 
D) ketotetrose 
E) ketopentose

Question 7

Amylopectin is a form of starch which has ________.

Accepted Answer

A) only β-1,4-bonds between glucose units 
B) only α-1,4-links bonds glucose units 
C) both α-1,4-and α-1,6-bonds between glucose units 
D) hemiacetal links joining glucose units 
E) carbon-carbon bonds joining glucose units 
A) only β-1,4-bonds between glucose units 
B) only α-1,4-links bonds glucose units 
C) both α-1,4-and α-1,6-bonds between glucose units 
D) hemiacetal links joining glucose units 
E) carbon-carbon bonds joining glucose units

Question 8

Achiral compounds are those which ________.

Accepted Answer

A) have no "handedness" 
B) have different mirror images 
C) are nonsuperimposable 
D) have the same formula but different structures 
E) have a carbon attached to four different atoms 
A) have no "handedness" 
B) have different mirror images 
C) are nonsuperimposable 
D) have the same formula but different structures 
E) have a carbon attached to four different atoms

Question 9

Which of the following contains α-1,6-branches?

Accepted Answer

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

Question 10

Enantiomers are mirror images of each other.

Accepted Answer

A) True 
 B)False

Question 11

Chirality occurs when stereoisomers have mirror images that are ________.

Accepted Answer

A) superimposable 
B) the same 
C) not superimposable 
D) not visible to one another 
E) identical 
A) superimposable 
B) the same 
C) not superimposable 
D) not visible to one another 
E) identical

Question 12

Cellulose is not digestible by humans because it contains glucose units linked by ________-glycosidic bonds.

Accepted Answer

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

Question 13

State whether each of these structures is the α- or β-form
-

Accepted Answer

The answer of State whether each of these structures is...

Question 14

A carbohydrate that gives two molecules when it is completely hydrolyzed is known as a ________.

Accepted Answer

A) monosaccharide 
B) disaccharide 
C) polysaccharide 
D) starch 
E) trisaccharide 
A) monosaccharide 
B) disaccharide 
C) polysaccharide 
D) starch 
E) trisaccharide

Question 15

The sugar also known as dextrose,and blood sugar is ________.

Accepted Answer

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

Question 16

Hyperglycemia is a condition in which ________.

Accepted Answer

A) the glucose level in the blood is about 100 mg/dL 
B) the amount of glucose in the urine is lower than normal 
C) the glucose level in the blood is higher than normal 
D) the glucose level in the pancreas is lower than normal 
E) the glucose level in the liver is lower than normal 
A) the glucose level in the blood is about 100 mg/dL 
B) the amount of glucose in the urine is lower than normal 
C) the glucose level in the blood is higher than normal 
D) the glucose level in the pancreas is lower than normal 
E) the glucose level in the liver is lower than normal

Question 17

A reducing sugar gives a precipitate of silver metal with Benedict's reagent.

Accepted Answer

A) True 
 B)False

Question 18

Refer to the disaccharide below to answer the following question(s). 
 
-In the figure above,the monosaccharide on the top is a(n)________.

Accepted Answer

A) aldopentose 
B) ketopentose 
C) aldohexose 
D) aldoheptose 
E) ketohexose 
A) aldopentose 
B) ketopentose 
C) aldohexose 
D) aldoheptose 
E) ketohexose

Question 19

An enantiomer is ________.

Accepted Answer

A) a stereoisomer that is not a mirror image of another molecule 
B) a stereoisomer whose mirror image cannot be superimposed 
C) a diastereoisomer 
D) a constitutional isomer 
E) a geometric isomer 
A) a stereoisomer that is not a mirror image of another molecule 
B) a stereoisomer whose mirror image cannot be superimposed 
C) a diastereoisomer 
D) a constitutional isomer 
E) a geometric isomer

Question 20

Galactose is a ________.

Accepted Answer

A) monosaccharide 
B) disaccharide 
C) trisaccharide 
D) polysaccharide 
E) phosphosaccharide 
A) monosaccharide 
B) disaccharide 
C) trisaccharide 
D) polysaccharide 
E) phosphosaccharide

How many different substituents are required on a carbon atom for it to be chiral?

Which of the following objects is chiral? Assume that each object has no markings or printing.

Which of the following contains a β-1,4-glycosidic bond?

Which group of carbohydrates cannot be hydrolyzed to give simpler carbohydrates?

In beta-glucose,the new -OH group is above the plane of the ring.

A monosaccharide that consists of 5 carbon atoms,one of which is in a ketone group,is classified as a(n)________.

Amylopectin is a form of starch which has ________.

Achiral compounds are those which ________.

Which of the following contains α-1,6-branches?

Enantiomers are mirror images of each other.

Chirality occurs when stereoisomers have mirror images that are ________.

Cellulose is not digestible by humans because it contains glucose units linked by ________-glycosidic bonds.

State whether each of these structures is the α- or β-form -

A carbohydrate that gives two molecules when it is completely hydrolyzed is known as a ________.

The sugar also known as dextrose,and blood sugar is ________.

Hyperglycemia is a condition in which ________.

A reducing sugar gives a precipitate of silver metal with Benedict's reagent.

Refer to the disaccharide below to answer the following question(s). -In the figure above,the monosaccharide on the top is a(n)________.

An enantiomer is ________.

Galactose is a ________.

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Alcohols, Thiols, Ethers, Aldehydes, and Ketones

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Exam 13: Carbohydrates

How many different substituents are required on a carbon atom for it to be chiral?

Which of the following objects is chiral? Assume that each object has no markings or printing.

Which of the following contains a β-1,4-glycosidic bond?

Which group of carbohydrates cannot be hydrolyzed to give simpler carbohydrates?

In beta-glucose,the new -OH group is above the plane of the ring.

A monosaccharide that consists of 5 carbon atoms,one of which is in a ketone group,is classified as a(n)________.

Amylopectin is a form of starch which has ________.

Achiral compounds are those which ________.

Which of the following contains α-1,6-branches?

Enantiomers are mirror images of each other.

Chirality occurs when stereoisomers have mirror images that are ________.

Cellulose is not digestible by humans because it contains glucose units linked by ________-glycosidic bonds.

State whether each of these structures is the α- or β-form -

A carbohydrate that gives two molecules when it is completely hydrolyzed is known as a ________.

The sugar also known as dextrose,and blood sugar is ________.

Hyperglycemia is a condition in which ________.

A reducing sugar gives a precipitate of silver metal with Benedict's reagent.

Refer to the disaccharide below to answer the following question(s). -In the figure above,the monosaccharide on the top is a(n)________.

An enantiomer is ________.

Galactose is a ________.

Chemistry in Our Lives

Chemistry and Measurement

Matter and Energy

Atoms and Elements

Nuclear Chemistry

Ionic and Molecular Compounds

Chemical Quantities and Reactions

Gases

Solutions

Acids and Bases and Equilibrium

Introduction to Organic Chemistry: Hydrocarbons

Alcohols, Thiols, Ethers, Aldehydes, and Ketones

Carboxylic Acids, Esters, Amines, and Amides

Lipids

Amino Acids, Proteins, and Enzymes

Nucleic Acids and Protein Synthesis

Metabolic Pathways and Energy Production

Filters