Question 1

Starch is made up of 50 to 100 glucose units.

Accepted Answer

A) True 
 B)False

Question 2

How many chiral carbons are contained in ribose,which is shown below?

Accepted Answer

A)  1
B)  2
C)  3
D)  4E) A) and C)
F) All of the above

Question 3

The hydrolysis of cellulose and starch would give the same monosaccharide.

Accepted Answer

A) True 
 B)False

Question 4

A monosaccharide used to form nucleic acids is _____ .

Accepted Answer

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

Question 5

The maximum number of stereoisomers for a compound containing 6 chiral carbon atoms is _____ .

Accepted Answer

A)  6
B)  16
C)  64
D)  132E) A) and B)
F) A) and C)

Question 6

The two forms of the glucose ring resulting from the substituents on the C-1 carbon are anomers.

Accepted Answer

A) True 
 B)False

Question 7

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 5E) A) and C)
F) C) and D)

Question 8

The structure shown is in what anomeric form?

Accepted Answer

A)  " α\alphaα "
B)  " β\betaβ "
C)  "cis"
D)  "trans" E) B) and C)
F) All of the above

Question 9

Which of the following is a disaccharide?

Accepted Answer

A)  glucose
B)  fructose
C)  galactose
D)  maltoseE) None of the above
F) B) and C)

Question 10

Which form of monosaccharides is preferred by human cells?

Accepted Answer

A)  D
B)  L
C)  both
D)  neitherE) C) and D)
F) B) and D)

Question 11

Of the monosaccharides,which is the most important nutritionally?

Accepted Answer

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

Question 12

The linkage between the two monosaccharide units of a disaccharide is a

Accepted Answer

A)  hemiacetal linkage.
B)  alpha linkage.
C)  ester linkage.
D)  glycosidic linkage.E) B) and C)
F) A) and D)

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

One can expect that a D enantiomer will rotate polarized light to the right (+ direction).

Accepted Answer

A) True 
 B)False

Question 15

Which of the following choices is a carbohydrate?

Accepted Answer

A)  progestin
B)  formaldehyde
C)  galactose
D)  hexamideE) A) and B)
F) C) and D)

Question 16

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) C) and D)
F) B) and C)

Question 17

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

Accepted Answer

A) True 
 B)False

Question 18

This compound is classified as a pyranose.

Accepted Answer

A) True 
 B)False

Question 19

Carbohydrates serve a number of important functions in our bodies.Which of the following is NOT one of those functions?

Accepted Answer

A)  They provide energy through their oxidation.
B)  They serve as a carbon supply for the synthesis of cell components.
C)  They serve as a way to store chemical energy.
D)  They are used as structural elements in cell walls.E) A) and C)
F) C) and D)

Question 20

How many stereoisomers of an aldopentose exist?

Accepted Answer

A)  2
B)  4
C)  6
D)  8E) A) and B)
F) B) and C)

Exam 17: Carbohydrates

Which of the following is a disaccharide?

Correct AnswerverifiedShow Answer

The maximum number of stereoisomers for a compound containing 6 chiral carbon atoms is _____ .

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The hydrolysis of cellulose and starch would give the same monosaccharide.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The two forms of the glucose ring resulting from the substituents on the C-1 carbon are anomers.

Correct AnswerverifiedShow Answer

How many stereoisomers of an aldopentose exist?

Correct AnswerverifiedShow Answer

Which of the following choices is a carbohydrate?

Correct AnswerverifiedShow Answer

This compound is classified as a pyranose.

Correct AnswerverifiedShow Answer

One can expect that a D enantiomer will rotate polarized light to the right (+ direction).

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

The linkage between the two monosaccharide units of a disaccharide is a

Correct AnswerverifiedShow Answer

Of the monosaccharides,which is the most important nutritionally?

Correct AnswerverifiedShow Answer

Starch is made up of 50 to 100 glucose units.

Correct AnswerverifiedShow Answer

Carbohydrates serve a number of important functions in our bodies.Which of the following is NOT one of those functions?

Correct AnswerverifiedShow Answer

A monosaccharide used to form nucleic acids is _____ .

Correct AnswerverifiedShow Answer

Which form of monosaccharides is preferred by human cells?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The structure shown is in what anomeric form?

Correct AnswerverifiedShow Answer

How many chiral carbons are contained in ribose,which is shown below?

Correct AnswerverifiedShow Answer

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The structure shown is in what anomeric form? $The structure shown is in what anomeric form? A) \alpha B) \beta C) cis D) trans$

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