Question 1

Which of the following is lowest in unsaturated fats?

Accepted Answer

A)  beef
B)  salmon
C)  corn oil
D)  canola oilE) A) and C)
F) B) and D) A

Question 2

Which of the following is a health effect of a diet high in saturated fats?

Accepted Answer

A)  increased risk of infectious disease
B)  decreased risk of atherosclerosis
C)  increased risk of heart attack
D)  decreased risk of strokeE) A) and B)
F) A) and C)

Question 3

What name is given to the following reaction? sucrose + water → glucose + fructose

Accepted Answer

A)  hydrogenation
B)  hydrolysis
C)  glycolysis
D)  dehydrationE) A) and D)
F) None of the above B

Question 4

Amino acids include a side group as well as ________.

Accepted Answer

A)  a central carbon,a hydrogen atom,an amino group,and a carboxyl group
B)  a central carbon,a hydrogen atom,a hydroxyl group,and a carbonyl group
C)  a central nitrogen,a carbon atom,a hydroxyl group,and a carbonyl group
D)  a central nitrogen,a carbon atom,an amino group,and a carbonyl groupE) None of the above
F) A) and B)

Question 5

Examine the two sugars in the following figure.How do these two sugars compare?

Accepted Answer

A)  Glucose has more hydrogen.
B)  Glucose has more double bonds.
C)  They have the same formula but different structures.
D)  They are structurally identical in every way.E) C) and D)
F) B) and D)

Question 6

What is the name given to the reaction that breaks peptide bonds?

Accepted Answer

A)  dehydration
B)  hydrogenation
C)  hydrolysis
D)  glycolysisE) A) and B)
F) A) and C)

Question 7

Proteins are polymers constructed from ________ monomers.

Accepted Answer

A)  hydrocarbon
B)  amino acid
C)  nucleotide
D)  fatty acidE) All of the above
F) None of the above

Question 8

A single carbon atom can form a maximum of ________ covalent bond(s) .

Accepted Answer

A)  0
B)  1
C)  2
D)  4E) None of the above
F) A) and B)

Question 9

Which of the following are isomers?

Accepted Answer

A)  glucose and fructose
B)  glucose and sucrose
C)  sucrose and glucose
D)  lactose and maltoseE) A) and B)
F) A) and C)

Question 10

Carbohydrates typically include ________.

Accepted Answer

A)  an NH₂ group
B)  C,H,and O atoms
C)  N and S atoms
D)  a PO₄ groupE) A) and D)
F) A) and C)

Question 11

Table sugar is ________.

Accepted Answer

A)  glucose,a monosaccharide
B)  glucose,a disaccharide
C)  sucrose,a monosaccharide
D)  sucrose,a disaccharideE) A) and B)
F) All of the above

Question 12

A specific stretch of DNA that programs the amino acid sequence of a polypeptide is a ________.

Accepted Answer

A)  gene
B)  protein
C)  nucleic acid
D)  enzymeE) None of the above
F) B) and C)

Question 13

Nucleic acids are polymers of ________ monomers.

Accepted Answer

A)  monosaccharide
B)  fatty acid
C)  DNA
D)  nucleotideE) C) and D)
F) None of the above

Question 14

Cellulose is an example of ________.

Accepted Answer

A)  a polypeptide
B)  a steroid
C)  fiber
D)  fatE) A) and B)
F) A) and C)

Question 15

Animals store carbohydrates as ________.

Accepted Answer

A)  cellulose
B)  glycogen
C)  starch
D)  maltoseE) A) and B)
F) All of the above B

Question 16

A glycerol with three fatty acids attached is referred to as a ________.

Accepted Answer

A)  prostaglandin
B)  nucleic acid
C)  steroid
D)  fatE) All of the above
F) A) and C)

Question 17

Which of the following is an example of a polysaccharide?

Accepted Answer

A)  glucose
B)  starch
C)  maltose
D)  sucroseE) All of the above
F) A) and B)

Question 18

Sometimes when I have my morning coffee,which I drink black with no cream or sugar,I notice a thin film floating on top of the coffee.Since I have just read Chapter 3 of the text,I now realize the nature of this substance and so I run to my friend screaming,"Look at this ________ in my coffee!"

Accepted Answer

A)  hydrophilic substance
B)  hydrophobic substance
C)  disaccharide
D)  polysaccharideE) B) and D)
F) All of the above

Question 19

A protein's function is most dependent on its ________.

Accepted Answer

A)  pH
B)  shape
C)  size
D)  weightE) All of the above
F) None of the above

Question 20

Which of the following is hydrophilic?

Accepted Answer

A)  cellulose
B)  testosterone
C)  butter
D)  cholesterolE) B) and C)
F) None of the above

Exam 3: The Molecules of Life

Which of the following is lowest in unsaturated fats?

Correct AnswerverifiedA

Which of the following is a health effect of a diet high in saturated fats?

Correct AnswerverifiedShow Answer

What name is given to the following reaction? sucrose + water → glucose + fructose

Correct AnswerverifiedB

Amino acids include a side group as well as ________.

Correct AnswerverifiedShow Answer

Examine the two sugars in the following figure.How do these two sugars compare?

Correct AnswerverifiedShow Answer

What is the name given to the reaction that breaks peptide bonds?

Correct AnswerverifiedShow Answer

Proteins are polymers constructed from ________ monomers.

Correct AnswerverifiedShow Answer

A single carbon atom can form a maximum of ________ covalent bond(s) .

Correct AnswerverifiedShow Answer

Which of the following are isomers?

Correct AnswerverifiedShow Answer

Carbohydrates typically include ________.

Correct AnswerverifiedShow Answer

Table sugar is ________.

Correct AnswerverifiedShow Answer

A specific stretch of DNA that programs the amino acid sequence of a polypeptide is a ________.

Correct AnswerverifiedShow Answer

Nucleic acids are polymers of ________ monomers.

Correct AnswerverifiedShow Answer

Cellulose is an example of ________.

Correct AnswerverifiedShow Answer

Animals store carbohydrates as ________.

Correct AnswerverifiedB

A glycerol with three fatty acids attached is referred to as a ________.

Correct AnswerverifiedShow Answer

Which of the following is an example of a polysaccharide?

Correct AnswerverifiedShow Answer

Sometimes when I have my morning coffee,which I drink black with no cream or sugar,I notice a thin film floating on top of the coffee.Since I have just read Chapter 3 of the text,I now realize the nature of this substance and so I run to my friend screaming,"Look at this ________ in my coffee!"

Correct AnswerverifiedShow Answer

A protein's function is most dependent on its ________.

Correct AnswerverifiedShow Answer

Which of the following is hydrophilic?

Correct AnswerverifiedShow Answer

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B

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B

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