Question 1

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

Accepted Answer

A) True 
 B)False

Question 2

What is the structure of cellulose?

Accepted Answer

A) unbranched skeleton of glucose molecules joined by 1$\rightarrow$4-$\alpha$-glycoside linkages 
B) branched skeleton of glucose molecules joined by 1$\rightarrow$4-$\alpha$-glycoside linkages 
C) unbranched skeleton of glucose molecules joined by 1$\rightarrow$4-$\beta$-glycoside linkages 
D) branched skeleton of glucose molecules joined by 1$\rightarrow$4-$\beta$-glycoside linkages 
A) unbranched skeleton of glucose molecules joined by 1$\rightarrow$4-$\alpha$-glycoside linkages 
B) branched skeleton of glucose molecules joined by 1$\rightarrow$4-$\alpha$-glycoside linkages 
C) unbranched skeleton of glucose molecules joined by 1$\rightarrow$4-$\beta$-glycoside linkages 
D) branched skeleton of glucose molecules joined by 1$\rightarrow$4-$\beta$-glycoside linkages

Question 3

_____ are the simplest carbohydrates.

Accepted Answer

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

Question 4

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 5

Chitin is identical in structure to cellulose, except that

Accepted Answer

A) the linkages are $\alpha$-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 $\alpha$-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

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

Accepted Answer

A) True 
 B)False

Question 7

Disaccharides contain two carbonyl groups.

Accepted Answer

A) True 
 B)False

Question 8

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

Accepted Answer

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

Question 9

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

Accepted Answer

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

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

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 13

Glucose and other naturally occurring sugars are D sugars.

Accepted Answer

A) True 
 B)False

Question 14

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

Accepted Answer

A) True 
 B)False

Question 15

Which structure is a three-carbon alditol?

Accepted Answer

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

Question 16

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 17

Which Haworth projection represents the $\beta$anomer of the monosaccharide shown below?

Accepted Answer

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

Question 18

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 19

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 20

Which monosaccharide is an aldotriose?

Accepted Answer

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

Exam 20: Carbohydrates

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

What is the structure of cellulose?

_____ are the simplest carbohydrates.

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.

Chitin is identical in structure to cellulose, except that

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

Disaccharides contain two carbonyl groups.

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

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

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

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

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

Glucose and other naturally occurring sugars are D sugars.

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

Which structure is a three-carbon alditol?

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.

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

Which is not a naturally-occurring polysaccharide?

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

Which monosaccharide is an aldotriose?

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

Digestion and the Conversion of Food Into Energy

Carbohydrate, Lipid, and Protein Metabolism

Filters

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

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

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

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

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.

Which Haworth projection represents the $\beta$ anomer of the monosaccharide shown below? $Which Haworth projection represents the \beta anomer of the monosaccharide shown below?$