Question 1

One of the characteristics of organic molecules is that they all can exist as stereoisomers.

Accepted Answer

A) True 
 B)False

Question 2

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 LE) None of the above
F) C) and D)

Question 3

When the compound below is treated with Benedict's reagent,that is the product of the reaction?

Accepted Answer

A)  
B)  
C)  
D)   no reactionE) A) and B)
F) A) and C)

Question 4

Which of the following monosaccharides is a ketohexose?

Accepted Answer

A)   ribose
B)   glucose
C)   galactose
D)   fructoseE) A) and B)
F) A) and C)

Question 5

The cyclic form of ____ contains a furanose ring.

Accepted Answer

A)   glucose
B)   maltose
C)   galactose
D)   fructoseE) A) and B)
F) None of the above

Question 6

Many commercials sell fiber supplements but you do not have the money to buy them.Which of the following is a poor source of fiber?

Accepted Answer

A)   steak
B)   beans
C)   carrots
D)   bananaE) B) and C)
F) C) and D)

Question 7

Monosaccharides and disaccharides both have a sweet taste.What taste does a polysaccharide have?

Accepted Answer

A)   sweet
B)   sour
C)   bitter
D)   tastelessE) A) and D)
F) A) and C)

Question 8

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

Accepted Answer

A) True 
 B)False

Question 9

Carbohydrates have their name because the ratio of carbon to water is always 1:1.

Accepted Answer

A) True 
 B)False

Question 10

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)   phenylalanineE) A) and D)
F) C) and D)

Question 11

Which of the following is a disaccharide?

Accepted Answer

A)   glucose
B)   fructose
C)   galactose
D)   maltoseE) B) and D)
F) C) and D)

Question 12

Which of the following sugars fails to give a positive Benedict's test?

Accepted Answer

A)   glucose
B)   galactose
C)   lactose
D)   sucroseE) A) and B)
F) All of the above

Question 13

Which of the following correctly describes the structure shown?

Accepted Answer

A)   aldopentose with 5 chiral carbon atoms
B)   aldopentose with 3 chiral carbon atoms
C)   ketopentose with 5 chiral carbon atoms
D)   ketopentose with 3 chiral carbon atomsE) A) and B)
F) A) and C)

Question 14

Polysaccharides usually give a negative Benedict's test.

Accepted Answer

A) True 
 B)False

Question 15

There are currently several artificial sweeteners on the market.Which of the following is NOT one of those artificial sweeteners?

Accepted Answer

A)   maltose
B)   aspartame
C)   sorbitol
D)   acesulfame-KE) C) and D)
F) All of the above

Question 16

A molecule with 3 chiral atoms would have 6 stereoisomers.

Accepted Answer

A) True 
 B)False

Question 17

Cellulose does not contribute to the caloric intake in humans.

Accepted Answer

A) True 
 B)False

Question 18

What polysaccaride would NOT exhibit the following type of linkage for all or a major portion of its structure?

Accepted Answer

A)   amylose
B)   amylopectin
C)   glycogen
D)   celluloseE) B) and C)
F) C) and D)

Question 19

A monosaccharide used to form nucleic acids is _____ .

Accepted Answer

A)   glucose
B)   galactose
C)   ribose
D)   maltoseE) B) and D)
F) B) and C)

Question 20

Which of the following compounds is the enantiomer of the structure shown below?

Accepted Answer

A)  
B)  
C)  
D)  E) B) and C)
F) A) and B)

Exam 17: Carbohydrates

The cyclic form of ____ contains a furanose ring.

Correct AnswerverifiedShow Answer

Cellulose does not contribute to the caloric intake in humans.

Correct AnswerverifiedShow Answer

A molecule with 3 chiral atoms would have 6 stereoisomers.

Correct AnswerverifiedShow Answer

Which of the following compounds is the enantiomer of the structure shown below?

Correct AnswerverifiedShow Answer

Monosaccharides and disaccharides both have a sweet taste.What taste does a polysaccharide have?

Correct AnswerverifiedShow Answer

Polysaccharides usually give a negative Benedict's test.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

When the compound below is treated with Benedict's reagent,that is the product of the reaction?

Correct AnswerverifiedShow Answer

The following structure is shown in what form?

Correct AnswerverifiedShow Answer

Which of the following sugars fails to give a positive Benedict's test?

Correct AnswerverifiedShow Answer

One of the characteristics of organic molecules is that they all can exist as stereoisomers.

Correct AnswerverifiedShow Answer

Which of the following correctly describes the structure shown?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Carbohydrates have their name because the ratio of carbon to water is always 1:1.

Correct AnswerverifiedShow Answer

Which of the following is a disaccharide?

Correct AnswerverifiedShow Answer

Which of the following monosaccharides is a ketohexose?

Correct AnswerverifiedShow Answer

Many commercials sell fiber supplements but you do not have the money to buy them.Which of the following is a poor source of fiber?

Correct AnswerverifiedShow Answer

There are currently several artificial sweeteners on the market.Which of the following is NOT one of those artificial sweeteners?

Correct AnswerverifiedShow Answer

What polysaccaride would NOT exhibit the following type of linkage for all or a major portion of its structure?

Correct AnswerverifiedShow Answer

A monosaccharide used to form nucleic acids is _____ .

Correct AnswerverifiedShow Answer

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