Question 1

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) hydrogen 
A) covalent 
B) ionic 
C) Van der Waals 
D) double 
E) hydrogen E

Question 2

All of the following are monosaccharides except

Accepted Answer

A) glucose. 
B) glycogen. 
C) fructose. 
D) ribose. 
E) deoxyribose. 
A) glucose. 
B) glycogen. 
C) fructose. 
D) ribose. 
E) deoxyribose. B

Question 3

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 atoms 
A) amino acids 
B) hydrogen and oxygen atoms 
C) nitrogen and phosphorus 
D) fatty acids 
E) carbon atoms C

Question 4

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

Accepted Answer

A) dehydration synthesis 
B) oxidation 
C) hydrolysis 
D) reduction 
A) dehydration synthesis 
B) oxidation 
C) hydrolysis 
D) reduction

Question 5

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 6

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) hydrophobic 
A) hydrophilic 
B) hydrophobic

Question 7

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

Accepted Answer

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

Question 8

Which of the following would have glycosidic bonds?

Accepted Answer

A) triglycerides 
B) monosaccharides 
C) polypeptides 
D) polysaccharides 
E) ATP 
A) triglycerides 
B) monosaccharides 
C) polypeptides 
D) polysaccharides 
E) ATP

Question 9

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

Question 10

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

Question 11

Anything that occupies space and has mass is called

Accepted Answer

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

Question 12

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

Question 13

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. 
A) an enzyme. 
B) a double helix. 
C) an electron carrier. 
D) the energy molecule of cells. 
E) All of these choices are correct.

Question 14

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

Question 15

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

Accepted Answer

A) 2 
B) 6 
C) 8 
D) 16 
E) 32 
A) 2 
B) 6 
C) 8 
D) 16 
E) 32

Question 16

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

Question 17

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) 63 
A) 3 
B) 10 
C) 1000 
D) 36 
E) 63

Question 18

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. 
A) fatty acids. 
B) glycerol. 
C) phosphate. 
D) alcohol. 
E) All of these choices are correct.

Question 19

Polar molecules have more reactivity compared to nonpolar molecules.

Accepted Answer

A) True 
 B)False

Question 20

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

Accepted Answer

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

Exam 2: The Chemistry of Biology

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

All of the following are monosaccharides except

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?

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

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

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.

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

Which of the following would have glycosidic bonds?

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

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

Anything that occupies space and has mass is called

Polar molecules are composed of covalently-bonded

ATP is best described as

The alpha helix and beta pleated sheet are examples of

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

Which of the following is/are hydrophilic?

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

The hydrophobic tails of a phospholipid are composed of

Polar molecules have more reactivity compared to nonpolar molecules.

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

The Main Themes of Microbiology

Tools of the Laboratory: Methods of Studying Microorganisms

A Survey of Prokaryotic Cells and Microorganisms

A Survey of Eukaryotic Cells and Microorganisms

An Introduction to Viruses

Microbial Nutrition, Ecology, and Growth

An Introduction to Microbial Metabolism: the Chemical Crossroads of Life

Microbial Genetics

Genetic Engineering: a Revolution in Molecular Biology

Physical and Chemical Agents for Microbial Control

Drugs, Microbes, Host--The Elements of Chemotherapy

Microbe-Human Interactions: Infection and Disease

An Introduction to Host Defenses and Innate Immunities

Adaptive, Specific Immunity and Immunization

Disorders in Immunity

Procedures for Identifying Pathogens and Diagnosing Infections

The Gram-Positive and Gram-Negative Cocci of Medical Importance

The Gram-Positive Bacilli of Medical Importance

The Gram-Negative Bacilli of Medical Importance

Miscellaneous Bacterial Agents of Disease

The Fungi of Medical Importance

The Parasites of Medical Importance

Introduction to Viruses That Infect Humans: the Dna Viruses

The Rna Viruses That Infect Humans

Environmental Microbiology

Applied and Industrial Microbiology

Filters

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

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

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