Question 1

Benedict's reagent is used for detecting reducing sugars because

Accepted Answer

A)  a reduction of the sugar occurs producing an acid. 
B)  the aldehyde group in the sugar is oxidized. 
C)  the copper ion in the reagent is oxidized as the sugar is reduced. 
D)  the -OH groups are exchanged for hydrogens. 
A)  a reduction of the sugar occurs producing an acid. 
B)  the aldehyde group in the sugar is oxidized. 
C)  the copper ion in the reagent is oxidized as the sugar is reduced. 
D)  the -OH groups are exchanged for hydrogens.

Question 2

Which are the most commonly found monosaccharides in nature?

Accepted Answer

A)  those with 4 carbons 
B)  those with 5-6 carbons 
C)  those with 7-9 carbons 
D)  those with 10 or more carbons 
A)  those with 4 carbons 
B)  those with 5-6 carbons 
C)  those with 7-9 carbons 
D)  those with 10 or more carbons

Question 3

How are the molecular structures of starch, glycogen, and cellulose similar and how are they different?

Accepted Answer

Starch, glycogen, and cellulose are all

Question 4

Which of the following properties of an enantiomer does not influence the amount of its rotation of plane polarized light?

Accepted Answer

A)  temperature 
B)  wavelength of light 
C)  number of molecules that the light passes through 
D)  its chemical property 
A)  temperature 
B)  wavelength of light 
C)  number of molecules that the light passes through 
D)  its chemical property

Question 5

Monosaccharides that form anomers containing five -membered rings are called ___.

Accepted Answer

The answer of Monosaccharides that form anomers containing five -membered...

Question 6

Oligosaccharides are digested in the ___.

Accepted Answer

A)  stomach 
B)  intestines 
C)  mouth 
D)  blood plasma 
A)  stomach 
B)  intestines 
C)  mouth 
D)  blood plasma

Question 7

An aldose is a carbohydrate that contains

Accepted Answer

A)  hydroxy groups on the terminal carbons. 
B)  water molecules on the alpha carbon. 
C)  an aldehyde group. 
D)  monosaccharides. 
A)  hydroxy groups on the terminal carbons. 
B)  water molecules on the alpha carbon. 
C)  an aldehyde group. 
D)  monosaccharides.

Question 8

Which of the following is an aldonic acid?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 9

Which of the following molecules contain a chiral carbon?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 10

Relative sweetness is a measure of the sweetness of any chosen sweetener compared to that of

Accepted Answer

A)  invert sugar. 
B)  the sweetest carbohydrate, fructose. 
C)  sucrose. 
D)  saccharin. 
A)  invert sugar. 
B)  the sweetest carbohydrate, fructose. 
C)  sucrose. 
D)  saccharin.

Question 11

Which of the following is a deoxy sugar?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 12

Fructose is different from glucose and galactose because

Accepted Answer

A)  fructose is a pentose; the other sugars are hexoses. 
B)  fructose is a ketose; the other sugars are aldoses. 
C)  the cyclic form is a square; the other sugars display hexagons. 
D)  fructose doesn't have an open form; the other sugars do have an open form. 
A)  fructose is a pentose; the other sugars are hexoses. 
B)  fructose is a ketose; the other sugars are aldoses. 
C)  the cyclic form is a square; the other sugars display hexagons. 
D)  fructose doesn't have an open form; the other sugars do have an open form.

Question 13

The method to determine the number of stereoisomers of a monosaccharide is to calculate 2n, where n is the total number of carbons in the molecule.

Accepted Answer

A) True 
 B)False

Question 14

What can be said about the relationship of these two carbohydrates?

Accepted Answer

A)  These two structures are not related. 
B)  Both have four chiral carbons. 
C)  They are superimposable. 
D)  They are enantiomers. 
A)  These two structures are not related. 
B)  Both have four chiral carbons. 
C)  They are superimposable. 
D)  They are enantiomers.

Question 15

D-glucose is often called by other names, such as corn sugar and grape sugar. It is also referred to as ___.

Accepted Answer

A)  dextrose 
B)  fruit sugar 
C)  blood sugar 
D)  dextrose and blood sugar 
A)  dextrose 
B)  fruit sugar 
C)  blood sugar 
D)  dextrose and blood sugar

Question 16

Which of the following molecules contain a chiral carbon?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 17

Which of the following is an amino sugar?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 18

Glycogen contains $\alpha$-1,4- and $\alpha$-1,6-glycosidic bonds.

Accepted Answer

A) True 
 B)False

Question 19

Glycogen and amylopectin are similar in that they are both polymers of glucose. Glycogen is the glucose storage form for ___ and starch is the glucose storage form for ___.

Accepted Answer

A)  plants/plants 
B)  animals/animals 
C)  plants/animals 
D)  animals/plants 
A)  plants/plants 
B)  animals/animals 
C)  plants/animals 
D)  animals/plants

Question 20

Which are anomers?

Accepted Answer

A)  aldotetrose and ketotetrose 
B)  D-glucose and L-glucose 
C)  glucopyranose and glucofuranose 
D)  $\alpha$-D-galacose and $\beta$-D-galactose 
A)  aldotetrose and ketotetrose 
B)  D-glucose and L-glucose 
C)  glucopyranose and glucofuranose 
D)  $\alpha$-D-galacose and $\beta$-D-galactose

Benedict's reagent is used for detecting reducing sugars because

Which are the most commonly found monosaccharides in nature?

How are the molecular structures of starch, glycogen, and cellulose similar and how are they different?

Which of the following properties of an enantiomer does not influence the amount of its rotation of plane polarized light?

Monosaccharides that form anomers containing five -membered rings are called ___.

Oligosaccharides are digested in the ___.

An aldose is a carbohydrate that contains

Which of the following is an aldonic acid?

Which of the following molecules contain a chiral carbon?

Relative sweetness is a measure of the sweetness of any chosen sweetener compared to that of

Which of the following is a deoxy sugar?

Fructose is different from glucose and galactose because

The method to determine the number of stereoisomers of a monosaccharide is to calculate 2ⁿ, where n is the total number of carbons in the molecule.

What can be said about the relationship of these two carbohydrates?

D-glucose is often called by other names, such as corn sugar and grape sugar. It is also referred to as ___.

Which of the following molecules contain a chiral carbon?

Which of the following is an amino sugar?

Glycogen contains $\alpha$ -1,4- and $\alpha$ -1,6-glycosidic bonds.

Glycogen and amylopectin are similar in that they are both polymers of glucose. Glycogen is the glucose storage form for _ and starch is the glucose storage form for _.

Which are anomers?

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Exam 10: Carbohydrates

Benedict's reagent is used for detecting reducing sugars because

Which are the most commonly found monosaccharides in nature?

How are the molecular structures of starch, glycogen, and cellulose similar and how are they different?

Which of the following properties of an enantiomer does not influence the amount of its rotation of plane polarized light?

Monosaccharides that form anomers containing five -membered rings are called ___.

Oligosaccharides are digested in the ___.

An aldose is a carbohydrate that contains

Which of the following is an aldonic acid?

Which of the following molecules contain a chiral carbon?

Relative sweetness is a measure of the sweetness of any chosen sweetener compared to that of

Which of the following is a deoxy sugar?

Fructose is different from glucose and galactose because

The method to determine the number of stereoisomers of a monosaccharide is to calculate 2n, where n is the total number of carbons in the molecule.

What can be said about the relationship of these two carbohydrates?

D-glucose is often called by other names, such as corn sugar and grape sugar. It is also referred to as ___.

Which of the following molecules contain a chiral carbon?

Which of the following is an amino sugar?

Glycogen contains α\alphaα -1,4- and α\alphaα -1,6-glycosidic bonds.

Glycogen and amylopectin are similar in that they are both polymers of glucose. Glycogen is the glucose storage form for ___ and starch is the glucose storage form for ___.

Which are anomers?

Science and Measurements

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Compounds

An Introduction to Organic Compounds

Reactions

Gases, Solutions, Colloids, and Suspensions

Acids, Bases, and Equilibrium

Organic Reactions Hydrocarbons, Carboxlic Acids, Amines, and Related Compounds

Organic Reactions 2-Alcohols, Ethers, Aldehydes, and Ketones

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The method to determine the number of stereoisomers of a monosaccharide is to calculate 2ⁿ, where n is the total number of carbons in the molecule.

Glycogen contains $\alpha$ -1,4- and $\alpha$ -1,6-glycosidic bonds.

Glycogen and amylopectin are similar in that they are both polymers of glucose. Glycogen is the glucose storage form for _ and starch is the glucose storage form for _.