Question 1

If asked to build a model of an amino acid,you would need parts to represent

Accepted Answer

A)  three R groups and a glycerol.
B)  nitrogen,carbon,and an R group.
C)  multiple saccharide rings.
D)  carbon and phosphorus monomers.
E)  carbon and phosphorus.F) D) and E)
G) All of the above

Question 2

Aphids that change color in response to the presence of bacterial symbionts generally do so as they age.

Accepted Answer

A) True 
 B)False

Question 3

The polymers with the most complex and diverse three-dimensional structures are

Accepted Answer

A)  saturated fats.
B)  unsaturated fats.
C)  proteins.
D)  waxes.
E)  carbohydrates.F) A) and D)
G) B) and E)

Question 4

The most common isotope of carbon is 12C.14C has ____ than 12C.

Accepted Answer

A)  more protons
B)  more neutrons
C)  fewer neutrons
D)  fewer protons
E)  more electronsF) C) and D)
G) D) and E)

Question 5

Carbon is a compound.

Accepted Answer

A) True 
 B)False

Question 6

Water is a compound.

Accepted Answer

A) True 
 B)False

Question 7

Some aphids can change color in response to the presence of bacterial symbionts.

Accepted Answer

A) True 
 B)False

Question 8

Which statement about a bond between sodium and chlorine would lose points on an exam?

Accepted Answer

A)  Na is the chemical symbol for sodium.
B)  Chlorine donates an electron.
C)  Chlorine becomes negatively charged.
D)  Sodium becomes positively chargeD.
E)  The bond that is formed is a strong bond.F) B) and D)
G) None of the above

Question 9

What do a lemon,a toaster oven,and sand grains have in common?

Accepted Answer

A)  All are composed of matter and energy.
B)  All are alive.
C)  All are composed of organic molecules.
D)  All are acidic.
E)  All are basic.F) B) and C)
G) A) and E)

Question 10

As part of a lab exam,you are given a vial of orange crystals.When you add them to pure,neutral pH water,the pH changes to 13.Other tests show that the crystals consist of as single chemical,which you could conclude is

Accepted Answer

A)  a weak acid.
B)  a weak base.
C)  neutral.
D)  a strong aciD.
E)  a strong basE.F) B) and E)
G) A) and B)

Question 11

Within a single molecule of water,____ bonds are formed between oxygen and hydrogen.

Accepted Answer

A)  ionic
B)  covalent
C)  hydrogen
D)  hydrophobic
E)  nuclearF) A) and C)
G) A) and B)

Question 12

The primary elements making up living organisms are

Accepted Answer

A)  carbon,hydrogen,oxygen,and calcium.
B)  carbon,oxygen,iron,and chlorine.
C)  carbon,hydrogen,iron,and calcium.
D)  carbon,hydrogen,oxygen,and nitrogen.
E)  carbon,oxygen,sulfur,and calcium.F) A) and E)
G) B) and E)

Question 13

Color changes are not connected to their survival.

Accepted Answer

A) True 
 B)False

Exam 2: The Chemistry of Life

Aphids that change color in response to the presence of bacterial symbionts generally do so as they age.

Correct Answer
verified

What do a lemon,a toaster oven,and sand grains have in common?

Correct Answer
verified

The most common isotope of carbon is ¹²C.¹⁴C has ____ than ¹²C.

Correct Answer
verified

Color changes are not connected to their survival.

Correct Answer
verified

Water is a compound.

Correct Answer
verified

As part of a lab exam,you are given a vial of orange crystals.When you add them to pure,neutral pH water,the pH changes to 13.Other tests show that the crystals consist of as single chemical,which you could conclude is

Correct Answer
verified

Carbon is a compound.

Correct Answer
verified

Which statement about a bond between sodium and chlorine would lose points on an exam?

Correct Answer
verified

The primary elements making up living organisms are

Correct Answer
verified

The polymers with the most complex and diverse three-dimensional structures are

Correct Answer
verified

If asked to build a model of an amino acid,you would need parts to represent

Correct Answer
verified

Some aphids can change color in response to the presence of bacterial symbionts.

Correct Answer
verified

Within a single molecule of water,____ bonds are formed between oxygen and hydrogen.

Correct Answer
verified

Exam 2: The Chemistry of Life

Aphids that change color in response to the presence of bacterial symbionts generally do so as they age.

Correct AnswerverifiedShow Answer

What do a lemon,a toaster oven,and sand grains have in common?

Correct AnswerverifiedShow Answer

The most common isotope of carbon is 12C.14C has ____ than 12C.

Correct AnswerverifiedShow Answer

Color changes are not connected to their survival.

Correct AnswerverifiedShow Answer

Water is a compound.

Correct AnswerverifiedShow Answer

As part of a lab exam,you are given a vial of orange crystals.When you add them to pure,neutral pH water,the pH changes to 13.Other tests show that the crystals consist of as single chemical,which you could conclude is

Correct AnswerverifiedShow Answer

Carbon is a compound.

Correct AnswerverifiedShow Answer

Which statement about a bond between sodium and chlorine would lose points on an exam?

Correct AnswerverifiedShow Answer

The primary elements making up living organisms are

Correct AnswerverifiedShow Answer

The polymers with the most complex and diverse three-dimensional structures are

Correct AnswerverifiedShow Answer

If asked to build a model of an amino acid,you would need parts to represent

Correct AnswerverifiedShow Answer

Some aphids can change color in response to the presence of bacterial symbionts.

Correct AnswerverifiedShow Answer

Within a single molecule of water,____ bonds are formed between oxygen and hydrogen.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
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The most common isotope of carbon is ¹²C.¹⁴C has ____ than ¹²C.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

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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