Question 1

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 D)
G) A) and B)

Question 2

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) C) and D)
G) None of the above

Question 3

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

Accepted Answer

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

Question 4

Nucleic acids have primary, secondary, tertiary, and quaternary levels of organization.

Accepted Answer

A) True 
 B)False

Question 5

During cellular reactions, electrons may be removed from compounds such as glucose and picked up by a coenzyme known as NAD+. When NAD+ gains these electrons, it is said to be

Accepted Answer

A)   oxidized.
B)   reduced.
C)   synthesized.
D)   dehydrated.E) A) and B)
F) A) and C)

Question 6

Which of the following is the stored form of carbohydrates in animals?

Accepted Answer

A)   glycogen
B)   maltose
C)   starch
D)   cellulose
E)   galactoseF) A) and B)
G) B) and E)

Question 7

C6H12O6 + C6H12O6 →C12H22O11 + H2O is an example of

Accepted Answer

A)   formation of a peptide bond.
B)   a decomposition reaction.
C)   denaturation.
D)   a hydrolytic reaction.
E)   dehydration synthesis.F) A) and B)
G) C) and D)

Question 8

The electrons of an atom are

Accepted Answer

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

Question 9

Explain what radioisotopes are, and describe how they can be used to monitor the uptake of a specific biochemical by a microbial culture.

Accepted Answer

Radioisotopes are isotopes of an element...

Question 10

All of the following pertain to 146C except it

Accepted Answer

A)   has 6 protons.
B)   has 6 electrons.
C)   has 14 neutrons.
D)   is an isotope of carbon.
E)   has a mass number of 14.F) B) and D)
G) B) and C)

Question 11

Cations are

Accepted Answer

A)   charged subatomic particles.
B)   atoms that have gained electrons.
C)   radioactive isotopes.
D)   capable of forming ionic bonds with anions.
E)   atoms without protons.F) A) and B)
G) A) and E)

Question 12

Identify and provide specific examples of the classes of macromolecules that are associated with life.

Accepted Answer

classes of macromolecules are :
Carbohyd...

Question 13

The total number of protons and neutrons of an element establishes its _____ number.

Accepted Answer

The answer of The total number of protons and neutrons...

Question 14

Water, glucose, and carbon dioxide are examples of

Accepted Answer

A)   compounds.
B)   atoms.
C)   gases.
D)   macromolecules.E) A) and B)
F) A) and C)

Question 15

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 B)
G) B) and E)

Question 16

During protein synthesis, genes in DNA are copied, making _____ RNA.

Accepted Answer

The answer of During protein synthesis, genes in DNA are...

Question 17

The atomic number equals the number of __________ in an atom.

Accepted Answer

A)   neutrons
B)   protons
C)   protons plus electrons
D)   neutrons plus protonsE) C) and D)
F) B) and D)

Question 18

Which amino acid contains sulfur atoms that form covalent disulfide bonds and stabilize the tertiary structure of some proteins?

Accepted Answer

A)   valine
B)   cysteine
C)   serine
D)   alanine
E)   tyrosineF) C) and D)
G) D) and E)

Question 19

The subatomic particles that surround the nucleus are the

Accepted Answer

A)   electrons.
B)   protons.
C)   neutrons.
D)   protons and neutrons.
E)   protons and electrons.F) A) and D)
G) C) and E)

Question 20

_____ bonds are formed by dehydration synthesis between adjacent amino acids.

Accepted Answer

The answer of _____ bonds are formed by dehydration synthesis...

Exam 2: The Chemistry of Biology

The atomic number equals the number of __________ in an atom.

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During protein synthesis, genes in DNA are copied, making _____ RNA.

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During cellular reactions, electrons may be removed from compounds such as glucose and picked up by a coenzyme known as NAD+. When NAD+ gains these electrons, it is said to be

Correct AnswerverifiedShow Answer

Water, glucose, and carbon dioxide are examples of

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The electrons of an atom are

Correct AnswerverifiedShow Answer

Which amino acid contains sulfur atoms that form covalent disulfide bonds and stabilize the tertiary structure of some proteins?

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Nucleic acids have primary, secondary, tertiary, and quaternary levels of organization.

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The total number of protons and neutrons of an element establishes its _____ number.

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

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The subatomic particles that surround the nucleus are the

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_____ bonds are formed by dehydration synthesis between adjacent amino acids.

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Which of the following is the stored form of carbohydrates in animals?

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

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Explain what radioisotopes are, and describe how they can be used to monitor the uptake of a specific biochemical by a microbial culture.

Correct AnswerAnswered by ExamLex AIRadioisotopes are isotopes of an element...View AnswerShow Answer

All of the following pertain to 146C except it

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Identify and provide specific examples of the classes of macromolecules that are associated with life.

Correct Answerverifiedclasses of macromolecules are :Carbohyd...View AnswerShow Answer

Which of the following is/are hydrophilic?

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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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C6H12O6 + C6H12O6 →C12H22O11 + H2O is an example of

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Cations are

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During cellular reactions, electrons may be removed from compounds such as glucose and picked up by a coenzyme known as NAD⁺. When NAD⁺ gains these electrons, it is said to be

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

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Radioisotopes are isotopes of an element...
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All of the following pertain to ¹⁴₆C except it

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classes of macromolecules are :
Carbohyd...
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C₆H₁₂O₆ + C₆H₁₂O₆ →C₁₂H₂₂O₁₁ + H₂O is an example of

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