Question 1

When the monosaccharide below is oxidized by Benedict's reagent,the indicated product results.

Accepted Answer

A) True 
 B)False

Question 2

The conversion of D-ribose to L-ribose is an example of mutarotation.

Accepted Answer

A) True 
 B)False

Question 3

The hydrolysis of a disaccharide cleaves the ________ linkage and forms two monosaccharides.

Accepted Answer

The answer of The hydrolysis of a disaccharide cleaves the...

Question 4

What product forms when the compound below is treated with H2 in the presence of a Pd catalyst?

Accepted Answer

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

Question 5

An alditol contains an -OH group on every carbon atom.

Accepted Answer

A) True 
 B)False

Question 6

________ are the simplest carbohydrates.

Accepted Answer

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

Question 7

Which is not a naturally-occurring polysaccharide?

Accepted Answer

A) Starch 
B) Cellulose 
C) Maltose 
D) Glycogen 
A) Starch 
B) Cellulose 
C) Maltose 
D) Glycogen

Question 8

Which monosaccharide is an aldotriose?

Accepted Answer

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

Question 9

Chitin is identical in structure to cellulose,except that

Accepted Answer

A) The linkages are a-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. 
A) The linkages are a-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 10

What product forms when the compound below is treated with Benedict's reagent?

Accepted Answer

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

Question 11

What is the most common type of starch molecules?

Accepted Answer

A) Cellulose 
B) Amylose 
C) Amylopectin 
D) Glycogen 
A) Cellulose 
B) Amylose 
C) Amylopectin 
D) Glycogen

Question 12

When a monosaccharide forms a cyclic hemiacetal,the carbon atom that is part of the hemiacetal is a new chirality center,called the anomeric carbon.

Accepted Answer

A) True 
 B)False

Question 13

What is the polysaccharide form in which glucose is stored in animals?

Accepted Answer

A) Cellulose 
B) Amylose 
C) Amylopectin 
D) Glycogen 
A) Cellulose 
B) Amylose 
C) Amylopectin 
D) Glycogen

Question 14

Why are humans not able to digest cellulose?

Accepted Answer

A) Humans cannot digest glucose. 
B) Humans do not possess the enzyme necessary to hydrolyze the 1→4-β-glycoside linkages found in cellulose. 
C) Humans do not possess the enzyme necessary to unwind the helical shape of the cellulose molecule. 
D) Humans do not possess the enzyme necessary to hydrolyze the 1→4-α-glycoside linkages found in cellulose. 
A) Humans cannot digest glucose. 
B) Humans do not possess the enzyme necessary to hydrolyze the 1→4-β-glycoside linkages found in cellulose. 
C) Humans do not possess the enzyme necessary to unwind the helical shape of the cellulose molecule. 
D) Humans do not possess the enzyme necessary to hydrolyze the 1→4-α-glycoside linkages found in cellulose.

Question 15

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

Accepted Answer

A) True 
 B)False

Question 16

Melibiose is a carbohydrate found in some plant juices. Which statement concerning melibiose is incorrect?

Accepted Answer

A) It is a disaccharide. 
B) It is composed of two different monosaccharides. 
C) It contains both an acetal and a hemiacetal. 
D) It contains a 1→5-α-glycosidic linkage. 
A) It is a disaccharide. 
B) It is composed of two different monosaccharides. 
C) It contains both an acetal and a hemiacetal. 
D) It contains a 1→5-α-glycosidic linkage.

Question 17

Test strips that contain the enzyme lactase are used to measure glucose concentration in urine.

Accepted Answer

A) True 
 B)False

Question 18

Humans store glucose for short term energy requirements in the polysaccharide ________.

Accepted Answer

The answer of Humans store glucose for short term energy...

Question 19

The simplest aldose is commonly called glyceraldehyde,although its IUPAC name is 2,3-dihydroxypropanal. What is the structure of this compound?

Accepted Answer

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

Question 20

Which Haworth projection represents the α anomer of the monosaccharide shown below?

Accepted Answer

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

Exam 20: Carbohydrates

When the monosaccharide below is oxidized by Benedict's reagent,the indicated product results.

The conversion of D-ribose to L-ribose is an example of mutarotation.

The hydrolysis of a disaccharide cleaves the ________ linkage and forms two monosaccharides.

What product forms when the compound below is treated with H2 in the presence of a Pd catalyst?

An alditol contains an -OH group on every carbon atom.

________ are the simplest carbohydrates.

Which is not a naturally-occurring polysaccharide?

Which monosaccharide is an aldotriose?

Chitin is identical in structure to cellulose,except that

What product forms when the compound below is treated with Benedict's reagent?

What is the most common type of starch molecules?

When a monosaccharide forms a cyclic hemiacetal,the carbon atom that is part of the hemiacetal is a new chirality center,called the anomeric carbon.

What is the polysaccharide form in which glucose is stored in animals?

Why are humans not able to digest cellulose?

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

Melibiose is a carbohydrate found in some plant juices. Which statement concerning melibiose is incorrect?

Test strips that contain the enzyme lactase are used to measure glucose concentration in urine.

Humans store glucose for short term energy requirements in the polysaccharide ________.

The simplest aldose is commonly called glyceraldehyde,although its IUPAC name is 2,3-dihydroxypropanal. What is the structure of this compound?

Which Haworth projection represents the α anomer of the monosaccharide shown below?

Matter and Measurement

Atoms and the Periodic Table

Ionic Compounds

Covalent Compounds

Chemical Reactions

Energy Changes,reaction Rates,and Equilibrium

Gases,liquids,and Solids

Solutions

Acids and Bases

Nuclear Chemistry

Introduction to Organic Molecules and Functional Groups

Alkanes

Unsaturated Hydrocarbons

Organic Compounds That Contain Oxygen,halogen,or Sulfur

The Three-Dimensional Shape of Molecules

Aldehydes and Ketones

Carboxylic Acids,esters,and Amides

Amines and Neurotransmitters

Lipids

Amino Acids,proteins,and Enzymes

Nucleic Acids and Protein Synthesis

Metabolism and Energy Production

Carbohydrate,lipid,and Protein Metabolism

Filters

What product forms when the compound below is treated with H₂ in the presence of a Pd catalyst?