Question 1

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

Accepted Answer

A) True 
 B)False

Question 2

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

Accepted Answer

A) 6 
B) 16 
C) 64 
D) 132 
A) 6 
B) 16 
C) 64 
D) 132

Question 3

Which form of monosaccharides is preferred by human cells?

Accepted Answer

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

Question 4

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

Accepted Answer

A) True 
 B)False

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 
A) carbons 1 and 2 
B) carbons 2 and 3 
C) carbons 3 and 4 
D) carbons,1,2,3,and 5

Question 6

This compound is classified as a pyranose.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following choices is a carbohydrate?

Accepted Answer

A) progestin 
B) formaldehyde 
C) galactose 
D) hexamide 
A) progestin 
B) formaldehyde 
C) galactose 
D) hexamide

Question 8

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

Accepted Answer

A) True 
 B)False

Question 9

The structure shown is in what anomeric form?

Accepted Answer

A) "$\alpha$" 
B) "$\beta$" 
C) "cis" 
D) "trans" 
A) "$\alpha$" 
B) "$\beta$" 
C) "cis" 
D) "trans"

Question 10

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) banana 
A) steak 
B) beans 
C) carrots 
D) banana

Question 11

A monosaccharide used to form nucleic acids is _____ .

Accepted Answer

A) glucose 
B) galactose 
C) ribose 
D) maltose 
A) glucose 
B) galactose 
C) ribose 
D) maltose

Question 12

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. 
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.

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

How many stereoisomers of an aldopentose exist?

Accepted Answer

A) 2 
B) 4 
C) 6 
D) 8 
A) 2 
B) 4 
C) 6 
D) 8

Question 15

Starch is made up of 50 to 100 glucose units.

Accepted Answer

A) True 
 B)False

Question 16

Of the monosaccharides,which is the most important nutritionally?

Accepted Answer

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

Question 17

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 18

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

Accepted Answer

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

Question 19

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. 
A) hemiacetal linkage. 
B) alpha linkage. 
C) ester linkage. 
D) glycosidic linkage.

Question 20

Which of the following is a disaccharide?

Accepted Answer

A) glucose 
B) fructose 
C) galactose 
D) maltose 
A) glucose 
B) fructose 
C) galactose 
D) maltose

Exam 17: Carbohydrates

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

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

Which form of monosaccharides is preferred by human cells?

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

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

This compound is classified as a pyranose.

Which of the following choices is a carbohydrate?

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

The structure shown is in what anomeric form?

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?

A monosaccharide used to form nucleic acids is _____ .

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

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

How many stereoisomers of an aldopentose exist?

Starch is made up of 50 to 100 glucose units.

Of the monosaccharides,which is the most important nutritionally?

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

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

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

Which of the following is a disaccharide?

Matter, measurements, and Calculations

Atoms and Molecules

Electronic Structure and the Periodic Law

Forces Between Particles

Chemical Reactions

The States of Matter

Solutions and Colloids

Reaction Rates and Equilibrium

Acids, bases, and Salts

Radioactivity and Nuclear Processes

Organic Compounds: Alkanes

Unsaturated Hydrocarbons

Alcohols, phenols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Esters

Amines and Amides

Lipids

Proteins

Enzymes

Nucleic Acids and Protein Synthesis

Nutrition and Energy for Life

Carbohydrate Metabolism

Lipid and Amino Acid Metabolism

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