Question 1

The disaccharide formed during the digestion of starch is _____ .

Accepted Answer

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

Question 2

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

Accepted Answer

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

Question 3

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

Question 4

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)

Question 5

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

Question 6

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

Accepted Answer

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

Question 7

Which of the following groups are expected to be found in carbohydrates?

Accepted Answer

A)   alcohol
B)   thiol
C)   methyl
D)   amide A

Question 8

The following structure is best represented as

Accepted Answer

A)   pyranose with a beta hydroxy group.
B)   pyranose with an alpha hydroxy group.
C)   furanose with a beta hydroxy group.
D)   furanose with an alpha hydroxy group.

Question 9

A component of lactose is the sugar _____ .

Accepted Answer

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

Question 10

What is the major difference between glucose and sorbitol?

Accepted Answer

A)   Glucose has 6 carbons;sorbitol has 5 carbons.
B)   Glucose has 6 carbons;sorbitol has 7 carbons.
C)   Glucose contains hydroxy groups;sorbitol does not contain hydroxy groups.
D)   Glucose contains an aldehyde carbon;sorbitol has an alcohol carbon in that location.

Question 11

The structure given below has what type of glycosidic linkage?

Accepted Answer

A)   ( α\alphaα (1 →\rarr→ 6) 
B)   ( β\betaβ (1 →\rarr→ 4) 
C)   ( β\betaβ (1 →\rarr→ 6) 
D)   ( α\alphaα (1 →\rarr→ 4)

Question 12

Which form of monosaccharides is preferred by human cells?

Accepted Answer

A)   D
B)   L
C)   both
D)   neither

Question 13

Molecules that are mirror images are enantiomers.

Accepted Answer

A) True 
 B)False

Question 14

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.

Question 15

The structure given below has what type of glycosidic linkage?

Accepted Answer

A)   ( α\alphaα (1 →\rarr→ 6) 
B)   ( β\betaβ (1 →\rarr→ 4) 
C)   ( β\betaβ (1 →\rarr→ 6) 
D)   ( α\alphaα (1 →\rarr→ 4)

Question 16

The carbohydrate below may be classified as a(n) ________.

Accepted Answer

A)   aldopentose
B)   aldohexose
C)   ketopentose
D)   ketohexose

Question 17

Which is a test for the presence of starch?

Accepted Answer

A)   Benedict's test
B)   exposure to iodine
C)   sweet taste
D)   acid-base titration

Question 18

Which of the following statements about chiral carbons is correct?

Accepted Answer

A)   A chiral carbon is one that has four different groups attached.
B)   A chiral carbon is one that determines the possibility of stereoisomerism.
C)   A chiral carbon can be an interior carbon.
D)   There is more than one correct response.

Question 19

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

Accepted Answer

A)   1
B)   2
C)   3
D)   4

Question 20

One function of carbohydrates is to form structural elements of some cells and tissues.

Accepted Answer

A) True 
 B)False

Exam 17: Carbohydrates

The disaccharide formed during the digestion of starch is _____ .

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedB

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedB

Which of the following groups are expected to be found in carbohydrates?

Correct AnswerverifiedA

The following structure is best represented as

Correct AnswerverifiedShow Answer

A component of lactose is the sugar _____ .

Correct AnswerverifiedShow Answer

What is the major difference between glucose and sorbitol?

Correct AnswerverifiedShow Answer

The structure given below has what type of glycosidic linkage?

Correct AnswerverifiedShow Answer

Which form of monosaccharides is preferred by human cells?

Correct AnswerverifiedShow Answer

Molecules that are mirror images are enantiomers.

Correct AnswerverifiedShow Answer

A short description of a stereoisomer would be?

Correct AnswerverifiedShow Answer

The structure given below has what type of glycosidic linkage?

Correct AnswerverifiedShow Answer

The carbohydrate below may be classified as a(n) ________.

Correct AnswerverifiedShow Answer

Which is a test for the presence of starch?

Correct AnswerverifiedShow Answer

Which of the following statements about chiral carbons is correct?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

One function of carbohydrates is to form structural elements of some cells and tissues.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified
B

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
B

Correct Answer
verified
A

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The structure given below has what type of glycosidic linkage? $The structure given below has what type of glycosidic linkage? A) ( \alpha (1 \rarr 6) B) ( \beta (1 \rarr 4) C) ( \beta (1 \rarr 6) D) ( \alpha (1 \rarr 4)$

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The structure given below has what type of glycosidic linkage? $The structure given below has what type of glycosidic linkage? A) ( \alpha (1 \rarr 6) B) ( \beta (1 \rarr 4) C) ( \beta (1 \rarr 6) D) ( \alpha (1 \rarr 4)$

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified