Question 1

Disaccharides contain two carbonyl groups.

Accepted Answer

A) True 
 B)False

Question 2

The $\beta$ anomer of a cyclic monosaccharide has the -OH group drawn down, below the ring.

Accepted Answer

A) True 
 B)False

Question 3

Which Haworth projection represents the  β\betaβ anomer of the monosaccharide shown below?

Accepted Answer

A)   
B)   
C)   
D)

Question 4

Carbohydrates are synthesized in green plants and algae through _____, a process that uses the energy from the sun to convert carbon dioxide and water into _____ and oxygen.

Accepted Answer

photosynth...

Question 5

Chitin is identical in structure to cellulose, except that

Accepted Answer

A)  the linkages are  α\alphaα -glycoside linkages.
B)  each OH group at C4 is replaced by NHCOCH3.
C)  each OH group at C2 is replaced by NH3.
D)  each OH group at C2 is replaced by NHCOCH3.

Question 6

At equilibrium, a solution of glucose in water is an equal mixture of the $\alpha$ anomer, the $\beta$ anomer, and the acyclic aldehyde.

Accepted Answer

A) True 
 B)False

Question 7

_____ are the simplest carbohydrates.

Accepted Answer

The answer of _____ are the simplest carbohydrates....

Question 8

The product of the reduction of an aldose is called a/an _____, also referred to as a "sugar alcohol".

Accepted Answer

The answer of The product of the reduction of an...

Question 9

The disaccharide shown below has an $\alpha$-glycosidic linkage.

Accepted Answer

A) True 
 B)False

Question 10

The naturally occurring enantiomer of a monosaccharide is distinguished by the prefix L-.

Accepted Answer

A) True 
 B)False

Question 11

Which is not a naturally-occurring polysaccharide?

Accepted Answer

A)  starch
B)  cellulose
C)  maltose
D)  glycogen

Question 12

Which structure is a three-carbon alditol?

Accepted Answer

A)   
B)   
C)   
D)

Question 13

What is the structure of cellulose?

Accepted Answer

A)  unbranched skeleton of glucose molecules joined by 1 →\rightarrow→ 4- α\alphaα -glycoside linkages
B)  branched skeleton of glucose molecules joined by 1 →\rightarrow→ 4- α\alphaα -glycoside linkages
C)  unbranched skeleton of glucose molecules joined by 1 →\rightarrow→ 4- β\betaβ -glycoside linkages
D)  branched skeleton of glucose molecules joined by 1 →\rightarrow→ 4- β\betaβ -glycoside linkages

Question 14

All disaccharides contain at least one acetal that joins the rings together.

Accepted Answer

A) True 
 B)False

Question 15

The two compounds N-acetyl-D-glucosamine and N-acetyl-D-galactosamine are a set of constitutional isomers.

Accepted Answer

A) True 
 B)False

Question 16

Glucose and other naturally occurring sugars are D sugars.

Accepted Answer

A) True 
 B)False

Question 17

Which monosaccharide is an aldotriose?

Accepted Answer

A)   
B)   
C)   
D)

Question 18

What type of polysaccharide is depicted in the "cartoon" shown below?

Accepted Answer

A)  cellulose
B)  amylose
C)  amylopectin
D)  chitin

Question 19

Carbohydrates serve important energy and structural roles for both plants and animals.

Accepted Answer

A) True 
 B)False

Question 20

Sucrose is a disaccharide that contains one _____ unit and one _____ unit.

Accepted Answer

The answer of Sucrose is a disaccharide that contains one...

Exam 20: Carbohydrates

What is the structure of cellulose?

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Carbohydrates serve important energy and structural roles for both plants and animals.

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Sucrose is a disaccharide that contains one _____ unit and one _____ unit.

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Which structure is a three-carbon alditol?

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Which is not a naturally-occurring polysaccharide?

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The β\betaβ anomer of a cyclic monosaccharide has the -OH group drawn down, below the ring.

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At equilibrium, a solution of glucose in water is an equal mixture of the α\alphaα anomer, the β\betaβ anomer, and the acyclic aldehyde.

Correct AnswerverifiedShow Answer

All disaccharides contain at least one acetal that joins the rings together.

Correct AnswerverifiedShow Answer

Chitin is identical in structure to cellulose, except that

Correct AnswerverifiedShow Answer

Which Haworth projection represents the β\betaβ anomer of the monosaccharide shown below?

Correct AnswerverifiedShow Answer

Which monosaccharide is an aldotriose?

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The disaccharide shown below has an α\alphaα -glycosidic linkage.

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The product of the reduction of an aldose is called a/an _____, also referred to as a "sugar alcohol".

Correct AnswerverifiedShow Answer

_____ are the simplest carbohydrates.

Correct AnswerverifiedShow Answer

Carbohydrates are synthesized in green plants and algae through _____, a process that uses the energy from the sun to convert carbon dioxide and water into _____ and oxygen.

Correct Answerverifiedphotosynth...View AnswerShow Answer

The two compounds N-acetyl-D-glucosamine and N-acetyl-D-galactosamine are a set of constitutional isomers.

Correct AnswerverifiedShow Answer

Disaccharides contain two carbonyl groups.

Correct AnswerverifiedShow Answer

The naturally occurring enantiomer of a monosaccharide is distinguished by the prefix L-.

Correct AnswerverifiedShow Answer

What type of polysaccharide is depicted in the "cartoon" shown below?

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Glucose and other naturally occurring sugars are D sugars.

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Correct Answer
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Sucrose is a disaccharide that contains one _ unit and one _ unit.

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The $\beta$ anomer of a cyclic monosaccharide has the -OH group drawn down, below the ring.

Correct Answer
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At equilibrium, a solution of glucose in water is an equal mixture of the $\alpha$ anomer, the $\beta$ anomer, and the acyclic aldehyde.

Correct Answer
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Which Haworth projection represents the $\beta$ anomer of the monosaccharide shown below? $Which Haworth projection represents the \beta anomer of the monosaccharide shown below? A) B) C) D)$

Correct Answer
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The disaccharide shown below has an $\alpha$ -glycosidic linkage. $The disaccharide shown below has an \alpha -glycosidic linkage.$

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Carbohydrates are synthesized in green plants and algae through _, a process that uses the energy from the sun to convert carbon dioxide and water into _ and oxygen.

Correct Answer
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photosynth...
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