Question 1

The following two monosaccharides form a disaccharide by forming a bond between the two carbons indicated with an asterisk (*).  What type of linkage results?

Accepted Answer

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

Question 2

A short description of a stereoisomer would be?

Accepted Answer

A) Stereoisomers are all of the isomers for compounds that can have in excess of two isomers. 
B) Stereoisomers are those compounds that can have two isomers that are straight chain and the right side is different from the left side. 
C) Stereoisomers are two isomers that resemble each other in the sense that one of the isomers is the mirror image of the other. 
D) There is more than one correct response. 
A) Stereoisomers are all of the isomers for compounds that can have in excess of two isomers. 
B) Stereoisomers are those compounds that can have two isomers that are straight chain and the right side is different from the left side. 
C) Stereoisomers are two isomers that resemble each other in the sense that one of the isomers is the mirror image of the other. 
D) There is more than one correct response.

Question 3

The following structure is shown in what form?

Accepted Answer

A) a D form 
B) an L form 
C) neither D nor L 
D) both D and L 
A) a D form 
B) an L form 
C) neither D nor L 
D) both D and L

Question 4

Which of the following choices is a carbohydrate?

Accepted Answer

A) progestin 
B) formaldehyde 
C) galactose 
D) hexamide 
A) progestin 
B) formaldehyde 
C) galactose 
D) hexamide

Question 5

The simplest carbohydrates are called  _____ .

Accepted Answer

A) monosaccharides 
B) disaccharides 
C) polysaccharides 
D) oligosaccharides 
A) monosaccharides 
B) disaccharides 
C) polysaccharides 
D) oligosaccharides

Question 6

Starch is made up of 50 to 100 glucose units.

Accepted Answer

A) True 
 B)False

Question 7

Glyceraldehyde is the simplest member of the carbohydrates and is shown below.  What is the total number of functional groups that this molecule contain?

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 3 
A) 0 
B) 1 
C) 2 
D) 3

Question 8

Worldwide, the major use of glucose is for energy storage.

Accepted Answer

A) True 
 B)False

Question 9

In order for molecules to be mirror images, there must be at least one carbon that does not have duplicate groups attached.

Accepted Answer

A) True 
 B)False

Question 10

Which carbon atoms in the following structure are correctly called chiral carbon atoms?

Accepted Answer

A) carbons 1 and 2 
B) carbons 2 and 3 
C) carbons 3 and 4 
D) carbons, 1, 2, 3, and 5 
A) carbons 1 and 2 
B) carbons 2 and 3 
C) carbons 3 and 4 
D) carbons, 1, 2, 3, and 5

Question 11

A carbohydrate present in the blood is _____ .

Accepted Answer

A) sucrose 
B) glucose 
C) fructose 
D) maltose 
A) sucrose 
B) glucose 
C) fructose 
D) maltose

Question 12

Which of the following is NOT a carbohydrate?

Accepted Answer

A) amylopectin 
B) deoxyribose 
C) glycogen 
D) cellulose 
A) amylopectin 
B) deoxyribose 
C) glycogen 
D) cellulose

Question 13

What is the name of the following sugar?

Accepted Answer

A) sucrose 
B) maltose 
C) lactose 
D) xylobiose 
A) sucrose 
B) maltose 
C) lactose 
D) xylobiose

Question 14

Which polysaccharide usually makes up 80-90% of plant starch?

Accepted Answer

A) chitin 
B) amylopectin 
C) heparin 
D) hyaluronic acid 
A) chitin 
B) amylopectin 
C) heparin 
D) hyaluronic acid

Question 15

A molecule with 3 chiral atoms would have 6 stereoisomers.

Accepted Answer

A) True 
 B)False

Question 16

sec-butyl alcohol has two stereoisomers.

Accepted Answer

A) True 
 B)False

Question 17

Carbohydrates which contain two sugar units chemically linked together are called a(n)_____ .

Accepted Answer

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

Question 18

Artificial sweeteners should be avoided by people suffering from phenylketonuria (PKU)due to their body's inability to metabolize ____ properly.

Accepted Answer

A) aldehydes 
B) phenols 
C) ketones 
D) phenylalanine 
A) aldehydes 
B) phenols 
C) ketones 
D) phenylalanine

Question 19

A characteristic of carbohydrates is that a carbonyl carbon is usually incorporated in their structures.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following monosaccharides is a ketohexose?

Accepted Answer

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

Exam 17: Carbohydrates

The following two monosaccharides form a disaccharide by forming a bond between the two carbons indicated with an asterisk (*). What type of linkage results?

A short description of a stereoisomer would be?

The following structure is shown in what form?

Which of the following choices is a carbohydrate?

The simplest carbohydrates are called _____ .

Starch is made up of 50 to 100 glucose units.

Glyceraldehyde is the simplest member of the carbohydrates and is shown below. What is the total number of functional groups that this molecule contain?

Worldwide, the major use of glucose is for energy storage.

In order for molecules to be mirror images, there must be at least one carbon that does not have duplicate groups attached.

Which carbon atoms in the following structure are correctly called chiral carbon atoms?

A carbohydrate present in the blood is _____ .

Which of the following is NOT a carbohydrate?

What is the name of the following sugar?

Which polysaccharide usually makes up 80-90% of plant starch?

A molecule with 3 chiral atoms would have 6 stereoisomers.

sec-butyl alcohol has two stereoisomers.

Carbohydrates which contain two sugar units chemically linked together are called a(n)_____ .

Artificial sweeteners should be avoided by people suffering from phenylketonuria (PKU)due to their body's inability to metabolize ____ properly.

A characteristic of carbohydrates is that a carbonyl carbon is usually incorporated in their structures.

Which of the following monosaccharides is a ketohexose?

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Organic Compounds: Alkanes

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