Question 1

Ionic bonds _______.

Accepted Answer

A)   always involve carbon
B)   result from transferring electrons
C)   result from sharing electrons
D)   result from like charge attraction
E)   are the weakest chemical bondsF) A) and D)
G) A) and C)

Question 2

C6H12O6+C6H12O6→C12H22O11+H2O \mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6}+\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6} \rightarrow \mathrm{C}_{12} \mathrm{H}_{22} \mathrm{O}_{11}+\mathrm{H}_{2} \mathrm{O} C6​H12​O6​+C6​H12​O6​→C12​H22​O11​+H2​O  represents _______.

Accepted Answer

A)   a decomposition reaction
B)   the formation of a polysaccharide
C)   a denaturation reaction
D)   a dehydration synthesis
E)   the formation of a peptide bond F) A) and C)
G) All of the above

Question 3

Covalent bonds _______.

Accepted Answer

A)   result from gaining electrons
B)   result from losing electrons
C)   are always nonpolar
D)   result from sharing electrons
E)   are always polarF) A) and E)
G) None of the above

Question 4

A new organism was identi?ed that contained arsenic in place of phosphate in its DNA double helix structure. Based upon this information alone, it can be determined that this change will greatly alter the information encoded by this genetic material.

Accepted Answer

A) True 
 B)False

Question 5

Burning coal produces sulfur dioxide in the atmosphere. When combined with rain that falls into bodies of water, this leads to _______.

Accepted Answer

A)   an increase in pH level of the water
B)   a greater concentration of OH- ions in the water
C)   a decrease in the pH level of the water
D)   no change in the pH level of the waterE) B) and C)
F) A) and B)

Question 6

What is the maximum number of electrons in the ﬁrst energy shell of an atom?

Accepted Answer

A)   2
B)   4
C)   8
D)   18
E)   32F) B) and C)
G) A) and B)

Question 7

The alpha (?)  helix is a type of _____ protein structure.

Accepted Answer

A)   primary
B)   secondary
C)   tertiary
D)   quaternaryE) B) and D)
F) A) and C)

Question 8

A reaction where an electron is lost is called ______.

Accepted Answer

A)   oxidation
B)   dissolution
C)   decomposition
D)   ionization
E)   reductionF) A) and D)
G) B) and D)

Question 9

One nucleotide contains one _______.

Accepted Answer

A)   phosphate
B)   pentose sugar
C)   nitrogen base
D)   All of the choices are correct.E) A) and C)
F) A) and D)

Question 10

All of the following are monosaccharides except ______.

Accepted Answer

A)   fructose
B)   glucose
C)   deoxyribose
D)   glycogenE) A) and B)
F) B) and D)

Question 11

ATP differs from the nucleotides found in DNA in the _______.

Accepted Answer

A)   use of adenosine instead of adenine
B)   use of phosphorus in the nitrogenous base portion of the molecule
C)   sugar portion of the molecule
D)   use of phosphate instead of sulfate in the backbone
E)   use of uracil in the nitrogenous base portion of the moleculeF) C) and D)
G) B) and E)

Question 12

If solution A has a lower pH compared to solution B, then solution A is more acidic than solution B.

Accepted Answer

A) True 
 B)False

Question 13

The concentration of a solution expresses the amount of solvent present.

Accepted Answer

A) True 
 B)False

Question 14

The building blocks of an enzyme are ______.

Accepted Answer

A)   nucleotides
B)   phosphate, glycerol, and fatty acids
C)   monosaccharides
D)   glycerol and fatty acids
E)   amino acidsF) A) and E)
G) B) and C)

Question 15

What type of bond is formed by dehydration synthesis between two amino acids?

Accepted Answer

A)   Glycosidic
B)   Ester
C)   Phosphate
D)   Disulﬁde
E)   PeptideF) All of the above
G) A) and D)

Question 16

Select the statement that most accurately reﬂects the process of plant material digestion in humans.

Accepted Answer

A)   It requires the action of enzymes called kinases.
B)   It is linked to the digestion of glycogen.
C)   It is a process that is dependent upon enzyme (cellulase)  production by gut microbiota.
D)   It is a very eﬃcient process the produces very little undigested material in feces.E) A) and B)
F) A) and C)

Question 17

All of the following are polysaccharides except ______.

Accepted Answer

A)   cellulose in certain cell walls
B)   agar used to make solid culture media
C)   sterols in cell membranes
D)   dextran in some bacterial slime layers
E)   a cell's glycocalyxF) C) and D)
G) A) and E)

Exam 2: The Chemistry of Biology

A new organism was identi?ed that contained arsenic in place of phosphate in its DNA double helix structure. Based upon this information alone, it can be determined that this change will greatly alter the information encoded by this genetic material.

Correct Answer
verified

A reaction where an electron is lost is called ______.

Correct Answer
verified

If solution A has a lower pH compared to solution B, then solution A is more acidic than solution B.

Correct Answer
verified

One nucleotide contains one _______.

Correct Answer
verified

Ionic bonds _______.

Correct Answer
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All of the following are polysaccharides except ______.

Correct Answer
verified

Covalent bonds _______.

Correct Answer
verified

Burning coal produces sulfur dioxide in the atmosphere. When combined with rain that falls into bodies of water, this leads to _______.

Correct Answer
verified

ATP differs from the nucleotides found in DNA in the _______.

Correct Answer
verified

All of the following are monosaccharides except ______.

Correct Answer
verified

Select the statement that most accurately reﬂects the process of plant material digestion in humans.

Correct Answer
verified

$\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6}+\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6} \rightarrow \mathrm{C}_{12} \mathrm{H}_{22} \mathrm{O}_{11}+\mathrm{H}_{2} \mathrm{O}$ represents _______.

Correct Answer
verified

The alpha (?) helix is a type of _____ protein structure.

Correct Answer
verified

The building blocks of an enzyme are ______.

Correct Answer
verified

What type of bond is formed by dehydration synthesis between two amino acids?

Correct Answer
verified

What is the maximum number of electrons in the ﬁrst energy shell of an atom?

Correct Answer
verified

The concentration of a solution expresses the amount of solvent present.

Correct Answer
verified

Exam 2: The Chemistry of Biology

A new organism was identi?ed that contained arsenic in place of phosphate in its DNA double helix structure. Based upon this information alone, it can be determined that this change will greatly alter the information encoded by this genetic material.

Correct AnswerverifiedShow Answer

A reaction where an electron is lost is called ______.

Correct AnswerverifiedShow Answer

If solution A has a lower pH compared to solution B, then solution A is more acidic than solution B.

Correct AnswerverifiedShow Answer

One nucleotide contains one _______.

Correct AnswerverifiedShow Answer

Ionic bonds _______.

Correct AnswerverifiedShow Answer

All of the following are polysaccharides except ______.

Correct AnswerverifiedShow Answer

Covalent bonds _______.

Correct AnswerverifiedShow Answer

Burning coal produces sulfur dioxide in the atmosphere. When combined with rain that falls into bodies of water, this leads to _______.

Correct AnswerverifiedShow Answer

ATP differs from the nucleotides found in DNA in the _______.

Correct AnswerverifiedShow Answer

All of the following are monosaccharides except ______.

Correct AnswerverifiedShow Answer

Select the statement that most accurately reﬂects the process of plant material digestion in humans.

Correct AnswerverifiedShow Answer

C6H12O6+C6H12O6→C12H22O11+H2O \mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6}+\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6} \rightarrow \mathrm{C}_{12} \mathrm{H}_{22} \mathrm{O}_{11}+\mathrm{H}_{2} \mathrm{O} C6​H12​O6​+C6​H12​O6​→C12​H22​O11​+H2​O represents _______.

Correct AnswerverifiedShow Answer

The alpha (?) helix is a type of _____ protein structure.

Correct AnswerverifiedShow Answer

The building blocks of an enzyme are ______.

Correct AnswerverifiedShow Answer

What type of bond is formed by dehydration synthesis between two amino acids?

Correct AnswerverifiedShow Answer

What is the maximum number of electrons in the ﬁrst energy shell of an atom?

Correct AnswerverifiedShow Answer

The concentration of a solution expresses the amount of solvent present.

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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$\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6}+\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6} \rightarrow \mathrm{C}_{12} \mathrm{H}_{22} \mathrm{O}_{11}+\mathrm{H}_{2} \mathrm{O}$ represents _______.

Correct Answer
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