Question 1

Which is not one of the four atoms that make up the bulk of living organisms?

Accepted Answer

A)   Oxygen
B)   Nitrogen
C)   Calcium
D)   CarbonE) A) and B)
F) None of the above

Question 2

Evaluate this statement: Cholesterol is a type of lipid,and thus all cholesterol lipids are bad for human health.

Accepted Answer

A)   True, because high levels of cholesterol lead to increased heart disease.
B)   True, because high levels of cholesterol lead to obesity.
C)   False, because some types cholesterol increase heart disease, but other types are necessary, especially in the plasma membrane.
D)   False, because cholesterol levels are not related to human health.E) A) and B)
F) B) and D)

Question 3

Something with a pH of 5 would be ________.

Accepted Answer

A)   acidic
B)   basic
C)   neutral
D)   alkalineE) B) and C)
F) A) and D)

Question 4

Why does sweating cool your skin on a hot,dry day but make you feel warmer on a hot,humid day?

Accepted Answer

Evaporating sweat cools the skin as the ...

Question 5

Proteins are diverse molecules that perform a wide variety of functions.Which of the following is not a typical function of proteins?

Accepted Answer

A)   Transport
B)   Catalyze reactions via enzymes
C)   Movement
D)   Energy storageE) All of the above
F) None of the above

Question 6

What is the basic structure of most lipids?

Accepted Answer

A)   A glycerol head and up to three fatty acid tails
B)   A linear chain of individual monomers
C)   A branched chain of individual monomers
D)   A chain of fatty acid tailsE) B) and D)
F) C) and D)

Question 7

What kind of bond joins amino acids together to form a protein?

Accepted Answer

A)   Peptide bond
B)   Hydrogen bond
C)   Polar bond
D)   Protein bondE) All of the above
F) B) and C)

Question 8

Which of the following dietary fats is considered to be the least healthy?

Accepted Answer

A)   Saturated fat
B)   Unsaturated fat
C)   Trans fat
D)   CholesterolE) A) and C)
F) All of the above

Question 9

Water is the least dense when it ________.

Accepted Answer

A)   freezes
B)   is just above freezing
C)   is at room temperature
D)   is just below boilingE) B) and D)
F) C) and D)

Question 10

To a large extent,a protein's function is dependent upon its shape.What determines a protein's shape?

Accepted Answer

A)   The location of the active site
B)   The sequence of amino acids
C)   The number of amino acids
D)   The number of peptide bondsE) B) and D)
F) A) and B)

Question 11

Identify the reactants in the following chemical reaction: C₁₀H₈ + 12 O₂ → 10 CO₂ + 4 H₂O

Accepted Answer

A)   C₁₀H₈ and 10 CO₂
B)   12 O₂ and 4 H₂O
C)   C₁₀H₈ and 12 O₂
D)   10 CO₂ and 4 H₂OE) None of the above
F) C) and D)

Question 12

Which number represents the atomic weight of oxygen?

Accepted Answer

A)   6
B)   16
C)   18
D)   Not enough information givenE) A) and B)
F) None of the above

Question 13

Organic molecules that end in the suffix "-ase" often function as ________ molecules.

Accepted Answer

A)   structural
B)   enzymatic
C)   transport
D)   storageE) B) and C)
F) A) and B)

Question 14

Organic compounds are distinguished by molecules that contain ________ bonded to other elements.

Accepted Answer

A)   nitrogen
B)   carbon
C)   oxygen
D)   hydrogenE) All of the above
F) C) and D)

Question 15

A needle can be made to "float" on the surface tension of water.What causes this surface tension to form?

Accepted Answer

A)   The adhesion of water molecules to the needle
B)   The cohesion of water molecules to each other
C)   The solubility of water
D)   The heat capacity of waterE) A) and B)
F) A) and C)

Question 16

During a chemical reaction,atoms are ________.

Accepted Answer

A)   destroyed
B)   created
C)   rearranged
D)   destroyed and createdE) B) and C)
F) A) and D)

Exam 2: The Chemistry of Life

During a chemical reaction,atoms are ________.

Correct Answer
verified

Why does sweating cool your skin on a hot,dry day but make you feel warmer on a hot,humid day?

Correct Answer
verified
Evaporating sweat cools the skin as the ...
View Answer

What kind of bond joins amino acids together to form a protein?

Correct Answer
verified

To a large extent,a protein's function is dependent upon its shape.What determines a protein's shape?

Correct Answer
verified

Which is not one of the four atoms that make up the bulk of living organisms?

Correct Answer
verified

Which of the following dietary fats is considered to be the least healthy?

Correct Answer
verified

Evaluate this statement: Cholesterol is a type of lipid,and thus all cholesterol lipids are bad for human health.

Correct Answer
verified

Organic molecules that end in the suffix "-ase" often function as ________ molecules.

Correct Answer
verified

Water is the least dense when it ________.

Correct Answer
verified

Something with a pH of 5 would be ________.

Correct Answer
verified

What is the basic structure of most lipids?

Correct Answer
verified

Which number represents the atomic weight of oxygen?

Correct Answer
verified

Proteins are diverse molecules that perform a wide variety of functions.Which of the following is not a typical function of proteins?

Correct Answer
verified

A needle can be made to "float" on the surface tension of water.What causes this surface tension to form?

Correct Answer
verified

Organic compounds are distinguished by molecules that contain ________ bonded to other elements.

Correct Answer
verified

Identify the reactants in the following chemical reaction: C₁₀H₈ + 12 O₂ → 10 CO₂ + 4 H₂O

Correct Answer
verified

Exam 2: The Chemistry of Life

During a chemical reaction,atoms are ________.

Correct AnswerverifiedShow Answer

Why does sweating cool your skin on a hot,dry day but make you feel warmer on a hot,humid day?

Correct AnswerverifiedEvaporating sweat cools the skin as the ...View AnswerShow Answer

What kind of bond joins amino acids together to form a protein?

Correct AnswerverifiedShow Answer

To a large extent,a protein's function is dependent upon its shape.What determines a protein's shape?

Correct AnswerverifiedShow Answer

Which is not one of the four atoms that make up the bulk of living organisms?

Correct AnswerverifiedShow Answer

Which of the following dietary fats is considered to be the least healthy?

Correct AnswerverifiedShow Answer

Evaluate this statement: Cholesterol is a type of lipid,and thus all cholesterol lipids are bad for human health.

Correct AnswerverifiedShow Answer

Organic molecules that end in the suffix "-ase" often function as ________ molecules.

Correct AnswerverifiedShow Answer

Water is the least dense when it ________.

Correct AnswerverifiedShow Answer

Something with a pH of 5 would be ________.

Correct AnswerverifiedShow Answer

What is the basic structure of most lipids?

Correct AnswerverifiedShow Answer

Which number represents the atomic weight of oxygen?

Correct AnswerverifiedShow Answer

Proteins are diverse molecules that perform a wide variety of functions.Which of the following is not a typical function of proteins?

Correct AnswerverifiedShow Answer

A needle can be made to "float" on the surface tension of water.What causes this surface tension to form?

Correct AnswerverifiedShow Answer

Organic compounds are distinguished by molecules that contain ________ bonded to other elements.

Correct AnswerverifiedShow Answer

Identify the reactants in the following chemical reaction: C₁₀H₈ + 12 O₂ → 10 CO₂ + 4 H₂O

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified
Evaporating sweat cools the skin as the ...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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