Question 1

Water molecules are nonpolar molecules.

Accepted Answer

A) True 
 B)False

Question 2

Polar molecules have more reactivity compared to nonpolar molecules.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following would have glycosidic bonds?

Accepted Answer

A)   triglycerides
B)   monosaccharides
C)   polypeptides
D)   polysaccharides
E)   ATPF) A) and E)
G) B) and C)

Question 4

Replication is the cellular process that copies the DNA prior to cell division.

Accepted Answer

A) True 
 B)False

Question 5

The important solvent associated with living things is

Accepted Answer

A)   carbon dioxide.
B)   sodium chloride.
C)   ethyl alcohol.
D)   benzene.
E)   water.F) A) and B)
G) None of the above

Question 6

Which of the following functional groups is mismatched to the organic compound?

Accepted Answer

A)   phosphate - carbohydrates
B)   sulfhydryl - proteins
C)   amino - proteins
D)   hydroxyl - alcohols
E)   carboxyl - fatty acidsF) A) and C)
G) A) and E)

Question 7

Elements have predictable chemical properties.

Accepted Answer

A) True 
 B)False

Question 8

Select the incorrect statement.

Accepted Answer

A)   Molecules contain atoms.
B)   Compounds may contain only one type of atom.
C)   Compounds contain molecules.
D)   Atoms are joined by chemical bonds forming molecules.
E)   Molecules may contain two of the same type of atom.F) C) and E)
G) None of the above

Question 9

ATP is best described as

Accepted Answer

A)   an enzyme.
B)   a double helix.
C)   an electron carrier.
D)   the energy molecule of cells.
E)   All of these choices are correct.F) B) and E)
G) B) and C)

Question 10

53. Only charged atoms can form ionic bonds.

Accepted Answer

A) True 
 B)False

Question 11

An amino acid contains all of the following except

Accepted Answer

A)   an amino group.
B)   a carboxyl group.
C)   a variable R group.
D)   a carbon atom.
E)   a nitrogenous base.F) D) and E)
G) All of the above

Question 12

Which is not true about enzymes?

Accepted Answer

A)   Enzymes are found in all cells.
B)   Enzymes are catalysts.
C)   Enzymes participate in the cell's chemical reactions.
D)   Enzymes can be denatured by heat and other agents.
E)   Enzymes have high-energy bonds between phosphates.F) B) and C)
G) C) and E)

Question 13

Reactions involving electron removal are called ______ reactions.

Accepted Answer

A)   oxidation
B)   reduction
C)   dehydration
D)   decomposition
E)   dissolutionF) A) and B)
G) C) and D)

Question 14

One nucleotide contains

Accepted Answer

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

Question 15

Which of the following represents a synthesis reaction?

Accepted Answer

A)   AB → A + B
B)   A + B → AB
C)   AB + XY → AX + BY
D)   AB + XY ↔ AX + BYE) B) and C)
F) C) and D)

Question 16

Anything that occupies space and has mass is called

Accepted Answer

A)   an electron.
B)   living.
C)   matter.
D)   energy.
E)   space.F) C) and D)
G) A) and D)

Question 17

Purines and pyrimidines are components in the building block units of all _____

Accepted Answer

The answer of Purines and pyrimidines are components in the...

Question 18

The purine bases in nucleic acids include

Accepted Answer

A)   thymine and cytosine.
B)   guanine and adenine.
C)   cytosine and guanine.
D)   adenine and thymine.
E)   ribose and deoxyribose.F) A) and B)
G) A) and C)

Question 19

The polynucleotide strands of DNA are linked along their length by __________ bonds between the bases.

Accepted Answer

A)   covalent
B)   ionic
C)   Van der Waals
D)   double
E)   hydrogenF) A) and C)
G) C) and D)

Question 20

A student forgot to label a beaker containing a DNA solution and a beaker containing a glucose solution. If chemical analysis was performed to identify the contents of each beaker, which of the following would be found in the beaker of DNA but not in the beaker with glucose?

Accepted Answer

A)   amino acids
B)   hydrogen and oxygen atoms
C)   nitrogen and phosphorus
D)   fatty acids
E)   carbon atomsF) A) and B)
G) B) and D)

Exam 2: The Chemistry of Biology

Water molecules are nonpolar molecules.

Correct AnswerverifiedShow Answer

Purines and pyrimidines are components in the building block units of all _____

Correct AnswerverifiedShow Answer

An amino acid contains all of the following except

Correct AnswerverifiedShow Answer

Which of the following functional groups is mismatched to the organic compound?

Correct AnswerverifiedShow Answer

Which is not true about enzymes?

Correct AnswerverifiedShow Answer

The polynucleotide strands of DNA are linked along their length by __________ bonds between the bases.

Correct AnswerverifiedShow Answer

Polar molecules have more reactivity compared to nonpolar molecules.

Correct AnswerverifiedShow Answer

The purine bases in nucleic acids include

Correct AnswerverifiedShow Answer

Reactions involving electron removal are called ______ reactions.

Correct AnswerverifiedShow Answer

Which of the following represents a synthesis reaction?

Correct AnswerverifiedShow Answer

Elements have predictable chemical properties.

Correct AnswerverifiedShow Answer

Replication is the cellular process that copies the DNA prior to cell division.

Correct AnswerverifiedShow Answer

One nucleotide contains

Correct AnswerverifiedShow Answer

ATP is best described as

Correct AnswerverifiedShow Answer

The important solvent associated with living things is

Correct AnswerverifiedShow Answer

Select the incorrect statement.

Correct AnswerverifiedShow Answer

Which of the following would have glycosidic bonds?

Correct AnswerverifiedShow Answer

A student forgot to label a beaker containing a DNA solution and a beaker containing a glucose solution. If chemical analysis was performed to identify the contents of each beaker, which of the following would be found in the beaker of DNA but not in the beaker with glucose?

Correct AnswerverifiedShow Answer

53. Only charged atoms can form ionic bonds.

Correct AnswerverifiedShow Answer

Anything that occupies space and has mass is called

Correct AnswerverifiedShow Answer

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