Question 1

All of the following are monosaccharides except

Accepted Answer

A)  glucose.
B)  glycogen.
C)  fructose.
D)  ribose.
E)  deoxyribose.F) None of the above
G) A) and B)

Question 2

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 3 specific detrimental results.

Accepted Answer

When certain antibiotics target prokaryo...

Question 3

All of the following are lipids except

Accepted Answer

A)  cholesterol.
B)  starch.
C)  phospholipid.
D)  wax.
E)  triglyceride.F) C) and D)
G) A) and D)

Question 4

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) A) and C)
G) A) and E)

Question 5

Which pertains to DNA but not to RNA?

Accepted Answer

A)  contains ribose
B)  contains adenine
C)  contains thymine
D)  contains uracil
E)  contains nucleotidesF) A) and E)
G) B) and E)

Question 6

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

Question 7

All proteins are enzymes.

Accepted Answer

A) True 
 B)False

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)  impossible to determineF) None of the above
G) All of the above

Question 9

C6H12O6 + C6H12O6→ C12 H22O11 + H2O represents

Accepted Answer

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

Question 10

A fat is called _____ if all carbons of the fatty acid chain are single bonded to 2 other carbons and 2 hydrogens.

Accepted Answer

The answer of A fat is called _____ if all...

Question 11

All of the following are polysaccharides, except

Accepted Answer

A)  dextran in some bacterial slime layers.
B)  agar used to make solid culture media.
C)  a cell's glycocalyx.
D)  cellulose in certain cell walls.
E)  prostaglandins in inflammation.F) A) and C)
G) A) and B)

Question 12

Which is not true about enzymes?

Accepted Answer

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

Question 13

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 14

One nucleotide contains

Accepted Answer

A)  one phosphate.
B)  one pentose.
C)  one nitrogen base.
D)  All of the choices are correct.
E)  None of the choices are correct.F) D) and E)
G) C) and E)

Question 15

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 E)
G) A) and E)

Question 16

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

Question 17

Elements have predictable chemical properties.

Accepted Answer

A) True 
 B)False

Question 18

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

Accepted Answer

A)  rRNA.
B)  DNA.
C)  tRNA.
D)  mRNA.
E)  ATP.F) All of the above
G) A) and E)

Question 19

The electrons of an atom are

Accepted Answer

A)  always equal 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) A) and B)
G) B) and C)

Question 20

A solution of pH 7 compared to a solution of pH 9

Accepted Answer

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

Exam 2: The Chemistry of Biology

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

All of the following are polysaccharides, except

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The building blocks of an enzyme are

Correct AnswerverifiedShow Answer

All of the following are lipids except

Correct AnswerverifiedShow Answer

C6H12O6 + C6H12O6→ C12 H22O11 + H2O represents

Correct AnswerverifiedShow Answer

Which pertains to DNA but not to RNA?

Correct AnswerverifiedShow Answer

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

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

One nucleotide contains

Correct AnswerverifiedShow Answer

All of the following are monosaccharides except

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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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A fat is called _____ if all carbons of the fatty acid chain are single bonded to 2 other carbons and 2 hydrogens.

Correct AnswerverifiedShow Answer

Elements have predictable chemical properties.

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The electrons of an atom are

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Which is not true about enzymes?

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All proteins are enzymes.

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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 3 specific detrimental results.

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

The subatomic particles that surround the nucleus are the

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A solution of pH 7 compared to a solution of pH 9

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

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C₆H₁₂O₆ + C₆H₁₂O₆→ C₁₂ H₂₂O₁₁ + H₂O represents

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When certain antibiotics target prokaryo...
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