Question 1

Which statement concerning carbohydrates is incorrect?

Accepted Answer

A) Carbohydrates serve important energy and structural roles for both plants and animals. 
B) Monosaccharides are the simplest carbohydrates and are known as simple sugars. 
C) Humans store excess glucose for short term energy requirements in the polysaccharide cellulose. 
D) Carbohydrates that can be oxidized by Benedict's reagent are called reducing sugars. 
A) Carbohydrates serve important energy and structural roles for both plants and animals. 
B) Monosaccharides are the simplest carbohydrates and are known as simple sugars. 
C) Humans store excess glucose for short term energy requirements in the polysaccharide cellulose. 
D) Carbohydrates that can be oxidized by Benedict's reagent are called reducing sugars.

Question 2

What are monosaccharides with a carbonyl group at C1 called?

Accepted Answer

A) anomers 
B) aldoses 
C) ketoses 
D) alditols 
A) anomers 
B) aldoses 
C) ketoses 
D) alditols

Question 3

What is the structure of amylopectin?

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 4

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

Accepted Answer

A) True 
 B)False

Question 5

What is the classification of the compound shown below?

Accepted Answer

A) L 
B) D 
C) A sugar this small is not classified as L or D. 
A) L 
B) D 
C) A sugar this small is not classified as L or D.

Question 6

Salicin is a naturally occurring, carbohydrate-containing pain reliever. Which statement concerning the functional groups present in salicin is incorrect?

Accepted Answer

A) Salicin contains an acetal. 
B) Salicin contains an alcohol. 
C) Salicin contains a hemiacetal. 
D) Salicin contains a phenol. 
A) Salicin contains an acetal. 
B) Salicin contains an alcohol. 
C) Salicin contains a hemiacetal. 
D) Salicin contains a phenol.

Question 7

Maltose is a reducing sugar.

Accepted Answer

A) True 
 B)False

Question 8

How many chirality centers are present in the compound shown below?

Accepted Answer

A) 2 
B) 4 
C) 5 
D) 6 
A) 2 
B) 4 
C) 5 
D) 6

Question 9

The configuration of the chirality center _____ (closest to/farthest from)the carbonyl group determines whether a monosaccharide is D or L.

Accepted Answer

The answer of The configuration of the chirality center _____...

Question 10

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 11

What is the classification of the compound shown below?

Accepted Answer

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

Question 12

An$\alpha$ glycoside has the glycosidic linkage oriented down, below the plane of the ring that contains the acetal joining the monosaccharides.

Accepted Answer

A) True 
 B)False

Which statement concerning carbohydrates is incorrect?

What are monosaccharides with a carbonyl group at C1 called?

What is the structure of amylopectin?

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

What is the classification of the compound shown below?

Salicin is a naturally occurring, carbohydrate-containing pain reliever. Which statement concerning the functional groups present in salicin is incorrect?

Maltose is a reducing sugar.

How many chirality centers are present in the compound shown below?

The configuration of the chirality center _____ (closest to/farthest from)the carbonyl group determines whether a monosaccharide is D or L.

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

What is the classification of the compound shown below?

An $\alpha$ glycoside has the glycosidic linkage oriented down, below the plane of the ring that contains the acetal joining the monosaccharides.

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

Exam 20: Carbohydrates

Which statement concerning carbohydrates is incorrect?

What are monosaccharides with a carbonyl group at C1 called?

What is the structure of amylopectin?

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

What is the classification of the compound shown below?

Salicin is a naturally occurring, carbohydrate-containing pain reliever. Which statement concerning the functional groups present in salicin is incorrect?

Maltose is a reducing sugar.

How many chirality centers are present in the compound shown below?

The configuration of the chirality center _____ (closest to/farthest from)the carbonyl group determines whether a monosaccharide is D or L.

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

What is the classification of the compound shown below?

An α\alphaα glycoside has the glycosidic linkage oriented down, below the plane of the ring that contains the acetal joining the monosaccharides.

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

An $\alpha$ glycoside has the glycosidic linkage oriented down, below the plane of the ring that contains the acetal joining the monosaccharides.