Question 1

Which of the following best describes the relationship between D-glucose and D-galactose?

Accepted Answer

A)  enantiomers 
B)  anomers 
C)  epimers 
D)  constitutional isomers 
E)  none of these 
A)  enantiomers 
B)  anomers 
C)  epimers 
D)  constitutional isomers 
E)  none of these

Question 2

Provide the reactant(s) for the following reaction.

Accepted Answer

The answer of Provide the reactant(s) for the following reaction....

Question 3

Predict the product(s) when maltose is treated with CH3OH/HCl.

Accepted Answer

@#IMG-DLM&_TB4454_00

Question 4

Draw the Fischer projection for the open-chain form of the following cyclic monosaccharide.

Accepted Answer

The answer of Draw the Fischer projection for the open-chain...

Question 5

Predict the product(s) for the following reaction.

Accepted Answer

The answer of Predict the product(s) for the following reaction....

Question 6

Which of the following is a reducing sugar with a 1$\to$4 $\alpha$-glycosidic linkage?

Accepted Answer

A)  maltose 
B)  cellobiose 
C)  sucrose 
D)  lactose 
E)  B and D 
A)  maltose 
B)  cellobiose 
C)  sucrose 
D)  lactose 
E)  B and D

Question 7

Which of the following disaccharides is a reducing sugar?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  none of these 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  none of these

Question 8

Which of the following is a L-hexose?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  V 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  V

Question 9

Identify the classification for D-erythrose.

Accepted Answer

A)  aldotetrose 
B)  ketotetrose 
C)  aldopentose 
D)  ketopentose 
E)  aldohexose 
A)  aldotetrose 
B)  ketotetrose 
C)  aldopentose 
D)  ketopentose 
E)  aldohexose

Question 10

Which one of the following heterocyclic amines is not a base in DNA?

Accepted Answer

A)  uracil 
B)  thymine 
C)  cytosine 
D)  adenine 
E)  guanine 
A)  uracil 
B)  thymine 
C)  cytosine 
D)  adenine 
E)  guanine

Question 11

Which aldose would produce D-ribose and D-arabinose when subjected to the Kiliani-Fischer synthesis?

Accepted Answer

A)  D-threose 
B)  D-xylose 
C)  D-erythrose 
D)  D-allose 
E)  D-lyxose 
A)  D-threose 
B)  D-xylose 
C)  D-erythrose 
D)  D-allose 
E)  D-lyxose

Question 12

Give the characteristics of a D-sugar.

Accepted Answer

A)  R configuration and dextrorotatory 
B)  R configuration and levorotatory 
C)  S configuration and dextrorotatory 
D)  S configuration and levorotatory 
E)  D and L have no correlation to configuration and rotation of plane-polarized light. 
A)  R configuration and dextrorotatory 
B)  R configuration and levorotatory 
C)  S configuration and dextrorotatory 
D)  S configuration and levorotatory 
E)  D and L have no correlation to configuration and rotation of plane-polarized light.

Question 13

The sequence of reactions that results in a chain shortening of the aldose chain is called the _______________ degradation.

Accepted Answer

The answer of The sequence of reactions that results in...

Question 14

Which one of the following compounds would give a positive test with Benedict's solution?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  none of these 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  none of these

Question 15

Of the possible stereoisomers for galactose, how many are L-isomers?

Accepted Answer

A)  8 
B)  6 
C)  10 
D)  3 
E)  4 
A)  8 
B)  6 
C)  10 
D)  3 
E)  4

Question 16

Polysaccharides are made by joining ________together.

Accepted Answer

A)  disaccharides 
B)  trisaccharides 
C)  polysaccharides 
D)  monosaccharides 
E)  all of these 
A)  disaccharides 
B)  trisaccharides 
C)  polysaccharides 
D)  monosaccharides 
E)  all of these

Question 17

Provide the structure for cytidine.

Accepted Answer

The answer of Provide the structure for cytidine....

Question 18

Raffinose is a trisaccharide found in whole grains. Is raffinose a reducing sugar?

Accepted Answer

A)  yes 
B)  no 
A)  yes 
B)  no

Question 19

Which of the following D-aldoses will produce an optically inactive product when treated with NaBH4/H2O?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  none of these 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  none of these

Question 20

What is the correct name for the following compound?

Accepted Answer

A)  ($\alpha$-D-fructofuranose) 
B)  ($\beta$-D-sorbofuranose) 
C)  ($\alpha$-D-glucopyranose) 
D)  ($\beta$-D- fructofuranose) 
E)  ($\beta$-D-gulopyranose) 
A)  ($\alpha$-D-fructofuranose) 
B)  ($\beta$-D-sorbofuranose) 
C)  ($\alpha$-D-glucopyranose) 
D)  ($\beta$-D- fructofuranose) 
E)  ($\beta$-D-gulopyranose)

Exam 24: Carbohydrates

Which of the following best describes the relationship between D-glucose and D-galactose?

Provide the reactant(s) for the following reaction.

Predict the product(s) when maltose is treated with CH3OH/HCl.

Draw the Fischer projection for the open-chain form of the following cyclic monosaccharide.

Predict the product(s) for the following reaction.

Which of the following is a reducing sugar with a 1 →\to→ 4 α\alphaα -glycosidic linkage?

Which of the following disaccharides is a reducing sugar?

Which of the following is a L-hexose?

Identify the classification for D-erythrose.

Which one of the following heterocyclic amines is not a base in DNA?

Which aldose would produce D-ribose and D-arabinose when subjected to the Kiliani-Fischer synthesis?

Give the characteristics of a D-sugar.

The sequence of reactions that results in a chain shortening of the aldose chain is called the _______________ degradation.

Which one of the following compounds would give a positive test with Benedict's solution?

Of the possible stereoisomers for galactose, how many are L-isomers?

Polysaccharides are made by joining ________together.

Provide the structure for cytidine.

Raffinose is a trisaccharide found in whole grains. Is raffinose a reducing sugar?

Which of the following D-aldoses will produce an optically inactive product when treated with NaBH4/H2O?

What is the correct name for the following compound?

A Review of General Chemistry: Electrons, Bonds, and Molecular Properties

Molecular Representations

Acids and Bases

Alkanes and Cycloalkanes

Stereoisomerism

Chemical Reactivity and Mechanisms

Alkyl Halides: Nucleophilic Substitution and Elimination Reactions

Addition Reactions of Alkenes

Alkynes

Radical Reactions

Synthesis

Alcohols and Phenols

Ethers and Epoxides; Thiols and Sulfides

Infrared Spectroscopy and Mass Spectrometry

Nuclear Magnetic Resonance Spectroscopy

Conjugated Pi Systems and Pericyclic Reactions

Aromatic Compounds

Aromatic Substitution Reactions

Aldehydes and Ketones

Carboxylic Acids and Their Derivatives

Alpha Carbon Chemistry: Enols and Enolates

Amines

Introduction to Organometallic Compounds

Amino Acids, Peptides, and Proteins

Lipids

Synthetic Polymers

Filters

Predict the product(s) when maltose is treated with CH₃OH/HCl.

Which of the following is a reducing sugar with a 1 $\to$ 4 $\alpha$ -glycosidic linkage?

Which of the following D-aldoses will produce an optically inactive product when treated with NaBH₄/H₂O?