Question 1

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

Accepted Answer

A) True 
 B)False

Question 2

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

Accepted Answer

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

Question 3

The neutrons of an atom are

Accepted Answer

A)  always equal to the number of protons in an atom.
B)  found in the nucleus.
C)  used to determine atomic number.
D)  positively charged.
E)  moving in pathways called orbitals.F) A) and C)
G) A) and B)

Question 4

Which of the following carbohydrates is found in dairy?

Accepted Answer

A)  lactose
B)  sucrose
C)  maltose
D)  glucose
E)  fructoseF) A) and D)
G) D) and E)

Question 5

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

Accepted Answer

A)  all salts
B)  all acids
C)  all gases
D)  all inorganic
E)  all solutesF) A) and B)
G) B) and C)

Question 6

Jim needs to prepare one liter of a 4% NaCl solution. How much NaCl should he weigh out?

Accepted Answer

A)   	0.4 grams     
B)   	4. grams 
C)   	40 grams 
D)   	400 grams 
E)   	None of the choices are correct. F) A) and E)
G) B) and D) C

Question 7

Isotopes are atoms of the same element that differ in their

Accepted Answer

A)  neutron number.
B)  electron number.
C)  proton number.
D)  atomic number.
E)  chemical properties.F) A) and B)
G) B) and D)

Question 8

Which of the following examples are NOT hydrophobic?

Accepted Answer

A)  Glucose
B)  Vegetable oil
C)  Butter
D)  Cholesterol
E)  Choices B, C, and D are correctF) C) and E)
G) A) and E)

Question 9

Which term does not belong in this list?

Accepted Answer

A)  lactic acid
B)  vinegar
C)  hydrogen ion donor
D)  pH 8
E)  acidicF) C) and D)
G) A) and E)

Question 10

The type of chemical bond linking amino acids together is a(n)

Accepted Answer

A)  glycosidic bond.
B)  peptide bond.
C)  ester bond.
D)  ionic bond.
E)  hydrogen bond.F) None of the above
G) D) and E)

Question 11

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 C)
G) A) and D) C

Question 12

Electrons that participate in chemical bonding are typically located closest to the nucleus.

Accepted Answer

A) True 
 B)False

Question 13

Polar molecules have more reactivity compared to nonpolar molecules.

Accepted Answer

A) True 
 B)False

Question 14

Reactions involving electron release are called ______ reactions.

Accepted Answer

A)  oxidation.
B)  reduction.
C)  ionization.
D)  decomposition.
E)  dissolution.F) A) and B)
G) C) and D)

Question 15

Which of the following represents an exchange reaction?

Accepted Answer

A)  AB → A + B
B)  A + B → AB
C)  X + Y → XYD
D)  AB + XY ↔ AX + BY
E)  None of the choices are correct.F) A) and D)
G) None of the above

Question 16

Which of the following would have glycosidic bonds?

Accepted Answer

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

Question 17

In _____ reproduction, offspring arise from the division of a single parent cell into two identical progeny cells.

Accepted Answer

The answer of In _____ reproduction, offspring arise from the...

Question 18

Compare and contrast the chemical and functional characteristics of DNA and RNA molecules.

Accepted Answer

DNA and RNA are both nucleic acids, but ...

Question 19

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) All of the above
G) A) and C)

Question 20

What part of a phospholipid forms hydrophobic tails?

Accepted Answer

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

Exam 2: The Chemistry of Biology

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The neutrons of an atom are

Correct AnswerverifiedShow Answer

Which of the following carbohydrates is found in dairy?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Jim needs to prepare one liter of a 4% NaCl solution. How much NaCl should he weigh out?

Correct AnswerverifiedC

Isotopes are atoms of the same element that differ in their

Correct AnswerverifiedShow Answer

Which of the following examples are NOT hydrophobic?

Correct AnswerverifiedShow Answer

Which term does not belong in this list?

Correct AnswerverifiedShow Answer

The type of chemical bond linking amino acids together is a(n)

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

Electrons that participate in chemical bonding are typically located closest to the nucleus.

Correct AnswerverifiedShow Answer

Polar molecules have more reactivity compared to nonpolar molecules.

Correct AnswerverifiedShow Answer

Reactions involving electron release are called ______ reactions.

Correct AnswerverifiedShow Answer

Which of the following represents an exchange reaction?

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Which of the following would have glycosidic bonds?

Correct AnswerverifiedD

In _____ reproduction, offspring arise from the division of a single parent cell into two identical progeny cells.

Correct AnswerverifiedShow Answer

Compare and contrast the chemical and functional characteristics of DNA and RNA molecules.

Correct AnswerAnswered by ExamLex AIDNA and RNA are both nucleic acids, but ...View AnswerShow Answer

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

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What part of a phospholipid forms hydrophobic tails?

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

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C

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C

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D

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Answered by ExamLex AI
DNA and RNA are both nucleic acids, but ...
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