Question 1

The building blocks of an enzyme are

Accepted Answer

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

Question 2

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 3

Which term does not belong in this list?

Accepted Answer

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

Question 4

Which elements are found in all carbohydrates, lipids, proteins, and nucleic acids?

Accepted Answer

nitrogen
c...

Question 5

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 + BYE) C) and D)
F) All of the above

Question 6

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

Accepted Answer

A) True 
 B)False

Question 7

Compared to a solution of pH 9, a solution of pH 7

Accepted Answer

A)   is more basic.
B)   has no OH- ions.
C)   has more H+ ions.
D)   has a higher pH.
E)   All of these choices are correct.F) B) and D)
G) None of the above

Question 8

Certain antibiotics are effective against bacteria that cause human infections because they target prokaryotic ribosomes. Discuss, in detail, how the drug attacking a pathogen's ribosomes will affect the cell. Discuss at least three specific detrimental results.

Accepted Answer

When certain antibiotics target prokaryo...

Question 9

A monosaccharide with 5 carbon atoms will have _____ hydrogen atoms and _____ oxygen atoms.

Accepted Answer

A)   10; 5
B)   5; 10
C)   5; 5
D)   10; 10
E)   2; 1F) D) and E)
G) A) and D)

Question 10

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 11

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

Accepted Answer

A) True 
 B)False

Question 12

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

Accepted Answer

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

Question 13

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) A) and D)
F) B) and D)

Question 14

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 E)
G) None of the above

Question 15

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) B) and E)
G) B) and C)

Question 16

The nucleic acid that delivers the correct amino acid to the ribosome for protein synthesis is

Accepted Answer

A)   rRNA.
B)   DNA.
C)   tRNA.
D)   mRNA.
E)   ATP.F) B) and D)
G) A) and B)

Question 17

A covalent bond is formed between an anion and a cation.

Accepted Answer

A) True 
 B)False

Question 18

The type of chemical bond linking amino acids together is an)

Accepted Answer

A)   glycosidic bond.
B)   peptide bond.
C)   ester bond.
D)   ionic bond.
E)   hydrogen bond.F) D) and E)
G) A) and E)

Question 19

Organic chemicals always have a basic framework of the element _____ bonded to other atoms.

Accepted Answer

The answer of Organic chemicals always have a basic framework...

Question 20

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)   4.0 grams
C)   40 grams
D)   400 gramsE) B) and D)
F) B) and C)

Exam 2: The Chemistry of Biology

The nucleic acid that delivers the correct amino acid to the ribosome for protein synthesis is

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Which term does not belong in this list?

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Compared to a solution of pH 9, a solution of pH 7

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The type of chemical bond linking amino acids together is an)

Correct AnswerverifiedShow Answer

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

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Organic chemicals always have a basic framework of the element _____ bonded to other atoms.

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A covalent bond is formed between an anion and a cation.

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Which of the following represents an exchange reaction?

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

Correct AnswerverifiedShow Answer

The building blocks of an enzyme are

Correct AnswerverifiedShow Answer

Certain antibiotics are effective against bacteria that cause human infections because they target prokaryotic ribosomes. Discuss, in detail, how the drug attacking a pathogen's ribosomes will affect the cell. Discuss at least three specific detrimental results.

Correct AnswerAnswered by ExamLex AIWhen certain antibiotics target prokaryo...View AnswerShow Answer

A monosaccharide with 5 carbon atoms will have _____ hydrogen atoms and _____ oxygen atoms.

Correct AnswerverifiedShow Answer

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

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

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

Correct AnswerverifiedShow Answer

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

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

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Which elements are found in all carbohydrates, lipids, proteins, and nucleic acids?

Correct Answerverifiednitrogenc...View AnswerShow Answer

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

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

Correct AnswerverifiedShow Answer

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

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When certain antibiotics target prokaryo...
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A monosaccharide with 5 carbon atoms will have _ hydrogen atoms and _ oxygen atoms.

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

Correct Answer
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