Question 1

Polysaccharides usually give a negative Benedict's test.

Accepted Answer

A) True 
 B)False

Question 2

A molecule with 3 chiral atoms would have 6 stereoisomers.

Accepted Answer

A) True 
 B)False

Question 3

Carbohydrates have their name because the ratio of carbon to water is always 1:1.

Accepted Answer

A) True 
 B)False

Question 4

Monosaccharides and disaccharides both have a sweet taste.What taste does a polysaccharide have?

Accepted Answer

A)  sweet 
B)  sour 
C)  bitter 
D)  tasteless 
A)  sweet 
B)  sour 
C)  bitter 
D)  tasteless

Question 5

What polysaccaride would NOT exhibit the following type of linkage for all or a major portion of its structure?

Accepted Answer

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

Question 6

Which of the following sugars fails to give a positive Benedict's test?

Accepted Answer

A)  glucose 
B)  galactose 
C)  lactose 
D)  sucrose 
A)  glucose 
B)  galactose 
C)  lactose 
D)  sucrose

Question 7

The following structure is shown in what form?

Accepted Answer

A)  a D form 
B)  an L form 
C)  neither D nor L 
D)  both D and L 
A)  a D form 
B)  an L form 
C)  neither D nor L 
D)  both D and L

Question 8

Which of the following monosaccharides is a ketohexose?

Accepted Answer

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

Question 9

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 10

Cellulose does not contribute to the caloric intake in humans.

Accepted Answer

A) True 
 B)False

Question 11

There are currently several artificial sweeteners on the market.Which of the following is NOT one of those artificial sweeteners?

Accepted Answer

A)  maltose 
B)  aspartame 
C)  sorbitol 
D)  acesulfame-K 
A)  maltose 
B)  aspartame 
C)  sorbitol 
D)  acesulfame-K

Question 12

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

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

A characteristic of carbohydrates is that a carbonyl carbon is usually incorporated in their structures.

Accepted Answer

A) True 
 B)False

Question 15

Artificial sweeteners should be avoided by people suffering from phenylketonuria (PKU)due to their body's inability to metabolize ____ properly.

Accepted Answer

A)  aldehydes 
B)  phenols 
C)  ketones 
D)  phenylalanine 
A)  aldehydes 
B)  phenols 
C)  ketones 
D)  phenylalanine

Question 16

Which of the following correctly describes the structure shown?

Accepted Answer

A)  aldopentose with 5 chiral carbon atoms 
B)  aldopentose with 3 chiral carbon atoms 
C)  ketopentose with 5 chiral carbon atoms 
D)  ketopentose with 3 chiral carbon atoms 
A)  aldopentose with 5 chiral carbon atoms 
B)  aldopentose with 3 chiral carbon atoms 
C)  ketopentose with 5 chiral carbon atoms 
D)  ketopentose with 3 chiral carbon atoms

Question 17

When the compound below is treated with Benedict's reagent,that is the product of the reaction?

Accepted Answer

A) 
  
B) 
  
C) 
  
D)  no reaction 
A) 
  
B) 
  
C) 
  
D)  no reaction

Question 18

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 19

Which of the following compounds is the enantiomer of the structure shown below?

Accepted Answer

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

Question 20

The cyclic form of ____ contains a furanose ring.

Accepted Answer

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

Exam 17: Carbohydrates

Polysaccharides usually give a negative Benedict's test.

A molecule with 3 chiral atoms would have 6 stereoisomers.

Carbohydrates have their name because the ratio of carbon to water is always 1:1.

Monosaccharides and disaccharides both have a sweet taste.What taste does a polysaccharide have?

What polysaccaride would NOT exhibit the following type of linkage for all or a major portion of its structure?

Which of the following sugars fails to give a positive Benedict's test?

The following structure is shown in what form?

Which of the following monosaccharides is a ketohexose?

A monosaccharide used to form nucleic acids is _____ .

Cellulose does not contribute to the caloric intake in humans.

There are currently several artificial sweeteners on the market.Which of the following is NOT one of those artificial sweeteners?

Which of the following is a disaccharide?

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

A characteristic of carbohydrates is that a carbonyl carbon is usually incorporated in their structures.

Artificial sweeteners should be avoided by people suffering from phenylketonuria (PKU)due to their body's inability to metabolize ____ properly.

Which of the following correctly describes the structure shown?

When the compound below is treated with Benedict's reagent,that is the product of the reaction?

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?

Which of the following compounds is the enantiomer of the structure shown below?

The cyclic form of ____ contains a furanose ring.

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

Body Fluids

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