Question 1

How many times more acidic is a solution with a pH of 3 than a solution with a pH of 6?

Accepted Answer

A)  3
B)  10
C)  1000
D)  36
E)  63F) D) and E)
G) B) and E)

Question 2

Which of the following is/are hydrophilic?

Accepted Answer

A)  glucose
B)  vegetable oil
C)  butter
D)  cholesterol
E)  Vegetable oil, butter, and cholesterol are correct.F) A) and B)
G) A) and C)

Question 3

Anything that occupies space and has mass is called

Accepted Answer

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

Question 4

The alpha helix and beta pleated sheet are examples of

Accepted Answer

A)  primary structure.
B)  secondary structure.
C)  tertiary structure.
D)  quaternary structure.
E)  gamma structure.F) B) and E)
G) B) and D)

Question 5

All of the following are monosaccharides except

Accepted Answer

A)  glucose.
B)  glycogen.
C)  fructose.
D)  ribose.
E)  deoxyribose.F) All of the above
G) B) and E) B

Question 6

The hydrophobic tails of a phospholipid are composed of

Accepted Answer

A)  fatty acids.
B)  glycerol.
C)  phosphate.
D)  alcohol.
E)  All of these choices are correct.F) All of the above
G) A) and E)

Question 7

What would be the valence number of electrons in the sulfur atom 3216S?

Accepted Answer

A)  2
B)  6
C)  8
D)  16
E)  32F) B) and C)
G) A) and E)

Question 8

If carbon has an atomic number of 6 and an atomic mass of 14, how many neutrons does it have?

Accepted Answer

A)  6
B)  7
C)  8
D)  14
E)  There is not enough information to determine this.F) A) and E)
G) A) and B)

Question 9

Which of the following would have glycosidic bonds?

Accepted Answer

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

Question 10

Atoms that gain or lose electrons become charged particles called _____.

Accepted Answer

The answer of Atoms that gain or lose electrons become...

Question 11

Polar molecules are composed of covalently-bonded

Accepted Answer

A)  identical atoms.
B)  carbon atoms.
C)  ions.
D)  atoms of different electronegativity.
E)  atoms of identical electronegativity.F) B) and C)
G) A) and D)

Question 12

Polar molecules have more reactivity compared to nonpolar molecules.

Accepted Answer

A) True 
 B)False

Question 13

What do H2O, NaCl, CO2, and HCl all have in common?

Accepted Answer

A)  All are salts.
B)  All are acids.
C)  All are gases.
D)  All are inorganic.
E)  All are solutes.F) A) and D)
G) B) and E)

Question 14

A solution is composed of one or more substances called _____ that are uniformly dispersed in a dissolving medium called a _____.

Accepted Answer

The answer of A solution is composed of one or...

Question 15

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 B)
G) B) and C) E

Question 16

A newly synthesized polypeptide that will ultimately form a cytoplasmic protein will most likely fold into a tertiary structure with its _____________ amino acid R-groups facing outward.

Accepted Answer

A)  hydrophilic
B)  hydrophobicC) A) and B)
D) undefined

Question 17

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) A) and D)
G) A) and B)

Question 18

The chemical reaction that forms an ester bond in a triglyceride is a __________________ reaction.

Accepted Answer

A)  dehydration synthesis
B)  oxidation
C)  hydrolysis
D)  reductionE) B) and C)
F) A) and D)

Question 19

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) C) and D) C

Question 20

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

Accepted Answer

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

Exam 2: The Chemistry of Biology

How many times more acidic is a solution with a pH of 3 than a solution with a pH of 6?

Correct AnswerverifiedShow Answer

Which of the following is/are hydrophilic?

Correct AnswerverifiedShow Answer

Anything that occupies space and has mass is called

Correct AnswerverifiedShow Answer

The alpha helix and beta pleated sheet are examples of

Correct AnswerverifiedShow Answer

All of the following are monosaccharides except

Correct AnswerverifiedB

The hydrophobic tails of a phospholipid are composed of

Correct AnswerverifiedShow Answer

What would be the valence number of electrons in the sulfur atom 3216S?

Correct AnswerverifiedShow Answer

If carbon has an atomic number of 6 and an atomic mass of 14, how many neutrons does it have?

Correct AnswerverifiedShow Answer

Which of the following would have glycosidic bonds?

Correct AnswerverifiedShow Answer

Atoms that gain or lose electrons become charged particles called _____.

Correct AnswerverifiedShow Answer

Polar molecules are composed of covalently-bonded

Correct AnswerverifiedShow Answer

Polar molecules have more reactivity compared to nonpolar molecules.

Correct AnswerverifiedShow Answer

What do H2O, NaCl, CO2, and HCl all have in common?

Correct AnswerverifiedShow Answer

A solution is composed of one or more substances called _____ that are uniformly dispersed in a dissolving medium called a _____.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedE

A newly synthesized polypeptide that will ultimately form a cytoplasmic protein will most likely fold into a tertiary structure with its _____________ amino acid R-groups facing outward.

Correct AnswerverifiedShow Answer

ATP is best described as

Correct AnswerverifiedShow Answer

The chemical reaction that forms an ester bond in a triglyceride is a __________________ reaction.

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 AnswerverifiedC

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

Correct AnswerverifiedShow Answer

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B

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What would be the valence number of electrons in the sulfur atom ³²₁₆S?

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What do H₂O, NaCl, CO₂, and HCl all have in common?

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A solution is composed of one or more substances called _ that are uniformly dispersed in a dissolving medium called a _.

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E

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C

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