Question 1

The breakdown of glucose to chemical energy for the cells to do work is an example of

Accepted Answer

A)  mutarotation.
B)  reduction.
C)  anabolism.
D)  oxidation.
E)  respiration.

Question 2

Which of the following is an example of an aldopentose?

Accepted Answer

A)   
B)   
C)   
D)   
E)

Question 3

Identify each Fischer projection as the D- or L-isomer.
-

Accepted Answer

D

Question 4

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

Accepted Answer

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

Question 5

The breakdown of carbohydrates to carbon dioxide and water in the body is called

Accepted Answer

A)  photosynthesis.
B)  respiration.
C)  anabolism.
D)  mutarotation.
E)  reduction.

Question 6

An enantiomer is

Accepted Answer

A)  a stereoisomer that is not a mirror image of another molecule.
B)  a diastereoisomer.
C)  a stereoisomer that is a mirror image of another molecule.
D)  a structural isomer.
E)  a cis-trans isomer.

Question 7

Humans cannot digest cellulose because they

Accepted Answer

A)   lack the necessary enzymes to digest 
B)   are poisoned by 
C)   are allergic to 
D)   have intestinal flora which use up 
E)   cannot digest chlorophyll. A

Question 8

Identify each Fischer projection as the D- or L-isomer.
-

Accepted Answer

The answer of Identify each Fischer projection as the D-...

Question 9

Maltose can be classified as a(n)

Accepted Answer

A)  polysaccharide.
B)  disaccharide.
C)  ketose.
D)  pentose.
E)  oligosaccharide.

Question 10

The oxidation of monosaccharides produces

Accepted Answer

A)  sugar alcohols.
B)  polysaccharides.
C)  trisaccharides.
D)  disaccharides.
E)  sugar acids.

Question 11

Ribulose has the following structural formula. To what carbohydrate class does ribulose belong?

Accepted Answer

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

Question 12

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; chirality does not depend on substitution.

Question 13

Galactose has the structure shown below. It can be classified as a

Accepted Answer

A)  ketone.
B)  ribose.
C)  disaccharide.
D)  ketose.
E)  monosaccharide.

Question 14

In a disaccharide, two monosaccharides are joined by what kind of bond?

Accepted Answer

A)  rotational
B)  double
C)  glycosidic
D)  alcohol
E)  anomeric

Question 15

Maltose is a

Accepted Answer

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

Question 16

Chirality occurs when stereoisomers have mirror images that are

Accepted Answer

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

Question 17

Identify each Fischer projection as the D- or L-isomer.
-

Accepted Answer

The answer of Identify each Fischer projection as the D-...

Question 18

Mannose has the structure shown below. Which isomer is shown?

Accepted Answer

A)   
B)   
C)   the D isomer
D)   the L isomer
E)   none of the above

Question 19

State whether each of these structures is the

Accepted Answer

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

Question 20

Refer to the disaccharides below to answer the question(s) that follow. 
-In the figure above, the monosaccharide unit at the top is a(n)

Accepted Answer

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

Exam 15: Carbohydrates

The breakdown of glucose to chemical energy for the cells to do work is an example of

Correct AnswerverifiedShow Answer

Which of the following is an example of an aldopentose?

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Identify each Fischer projection as the D- or L-isomer. -

Correct AnswerverifiedD

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

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The breakdown of carbohydrates to carbon dioxide and water in the body is called

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An enantiomer is

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Humans cannot digest cellulose because they

Correct AnswerverifiedA

Identify each Fischer projection as the D- or L-isomer. -

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Maltose can be classified as a(n)

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The oxidation of monosaccharides produces

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Ribulose has the following structural formula. To what carbohydrate class does ribulose belong?

Correct AnswerverifiedA

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

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Galactose has the structure shown below. It can be classified as a

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In a disaccharide, two monosaccharides are joined by what kind of bond?

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Maltose is a

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Chirality occurs when stereoisomers have mirror images that are

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Identify each Fischer projection as the D- or L-isomer. -

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Mannose has the structure shown below. Which isomer is shown?

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State whether each of these structures is the

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Refer to the disaccharides below to answer the question(s) that follow. -In the figure above, the monosaccharide unit at the top is a(n)

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