Question 1

All of the following bases are found in RNA molecules EXCEPT

Accepted Answer

A)  adenine. 
B)  thymine. 
C)  uracil. 
D)  cytosine. 
E)  guanine. 
A)  adenine. 
B)  thymine. 
C)  uracil. 
D)  cytosine. 
E)  guanine.

Question 2

Which of the following is a property of water?

Accepted Answer

A)  it has a high capacity for heat. 
B)  it is not a common reactant in metabolic reactions. 
C)  It is not a good solvent. 
D)  it is liquid in a very narrow temperature range. 
E)  it is a nonpolar molecule. 
A)  it has a high capacity for heat. 
B)  it is not a common reactant in metabolic reactions. 
C)  It is not a good solvent. 
D)  it is liquid in a very narrow temperature range. 
E)  it is a nonpolar molecule.

Question 3

All of the following are associated with ATP molecules EXCEPT

Accepted Answer

A)  a long-term energy supply. 
B)  high-energy bonds. 
C)  a recyclable energy supply. 
D)  formation of coenzymes. 
E)  three phosphate groups. 
A)  a long-term energy supply. 
B)  high-energy bonds. 
C)  a recyclable energy supply. 
D)  formation of coenzymes. 
E)  three phosphate groups.

Question 4

Which of the following is NOT a characteristic of saturated fats?

Accepted Answer

A)  they are usually solid at room temperature. 
B)  they contain at least one double bond. 
C)  they are found in animals. 
D)  their fatty acids pack tightly together. 
E)  they are a form of stored energy. 
A)  they are usually solid at room temperature. 
B)  they contain at least one double bond. 
C)  they are found in animals. 
D)  their fatty acids pack tightly together. 
E)  they are a form of stored energy.

Question 5

A(n)(catalyst/enzyme)is any molecule that speeds up a chemical reaction.

Accepted Answer

The answer of A(n)(catalyst/enzyme)is any molecule that speeds up a...

Question 6

Proteins contain both acidic and basic R groups and can,therefore,function as

Accepted Answer

A)  energy storage macromolecules. 
B)  structural macromolecules. 
C)  buffers. 
D)  catalysts. 
E)  genetic material. 
A)  energy storage macromolecules. 
B)  structural macromolecules. 
C)  buffers. 
D)  catalysts. 
E)  genetic material.

Question 7

An organic molecule with the chemical formula C₄H₅O₁N₃ is probably a pyrimidine.

Accepted Answer

A) True 
 B)False

Question 8

Which parts of the atoms interact in a chemical reaction?

Accepted Answer

A)  protons 
B)  neutrons 
C)  ions 
D)  electrons 
E)  isotopes 
A)  protons 
B)  neutrons 
C)  ions 
D)  electrons 
E)  isotopes

Question 9

The type(s)of bond produced when atoms share electrons equally is/are

Accepted Answer

A)  a nonpolar covalent bond. 
B)  a hydrogen bond. 
C)  an ionic bond. 
D)  a polar covalent bond. 
E)  both polar covalent and ionic bonds. 
A)  a nonpolar covalent bond. 
B)  a hydrogen bond. 
C)  an ionic bond. 
D)  a polar covalent bond. 
E)  both polar covalent and ionic bonds.

Question 10

An acid dissociates in water to release

Accepted Answer

A)  hydrogen ion(s). 
B)  cation(s). 
C)  hydroxyl group(s). 
D)  anion(s). 
E)  both anions and hydrogen ions. 
A)  hydrogen ion(s). 
B)  cation(s). 
C)  hydroxyl group(s). 
D)  anion(s). 
E)  both anions and hydrogen ions.

Question 11

Which of the following is an incorrect pairing?

Accepted Answer

A)  primary structure; amino acid sequence 
B)  secondary structure; disulfide bridges 
C)  tertiary structure; covalent bonds 
D)  quaternary structure; two or more polypeptides 
E)  secondary structure; β-pleated sheets 
A)  primary structure; amino acid sequence 
B)  secondary structure; disulfide bridges 
C)  tertiary structure; covalent bonds 
D)  quaternary structure; two or more polypeptides 
E)  secondary structure; β-pleated sheets

Question 12

A stable atom has ________ in its valence shell.

Accepted Answer

A)  4 electrons 
B)  2 neutrons 
C)  8 electrons 
D)  8 protons 
E)  10 electrons 
A)  4 electrons 
B)  2 neutrons 
C)  8 electrons 
D)  8 protons 
E)  10 electrons

Question 13

An unbranched polymer composed of simple sugars is a(n)

Accepted Answer

A)  protein. 
B)  triglyceride. 
C)  starch. 
D)  glycoprotein. 
E)  amino acid. 
A)  protein. 
B)  triglyceride. 
C)  starch. 
D)  glycoprotein. 
E)  amino acid.

Question 14

Nucleic acids,proteins,and complex carbohydrates are all produced by

Accepted Answer

A)  hydrolytic reactions. 
B)  dehydration synthesis. 
C)  exchange reactions. 
D)  hydrogen bonding. 
E)  catabolic reactions. 
A)  hydrolytic reactions. 
B)  dehydration synthesis. 
C)  exchange reactions. 
D)  hydrogen bonding. 
E)  catabolic reactions.

Question 15

All of the following are components of an amino acid EXCEPT a(n)

Accepted Answer

A)  carboxyl group. 
B)  pentose group. 
C)  amino group. 
D)  α-carbon. 
E)  R group. 
A)  carboxyl group. 
B)  pentose group. 
C)  amino group. 
D)  α-carbon. 
E)  R group.

Question 16

When a base dissolves in water it releases a(n)(electron/cation/hydrogen ion).

Accepted Answer

The answer of When a base dissolves in water it...

Exam 2: The Chemistry of Microbiology

All of the following bases are found in RNA molecules EXCEPT

Which of the following is a property of water?

All of the following are associated with ATP molecules EXCEPT

Which of the following is NOT a characteristic of saturated fats?

A(n)(catalyst/enzyme)is any molecule that speeds up a chemical reaction.

Proteins contain both acidic and basic R groups and can,therefore,function as

An organic molecule with the chemical formula C₄H₅O₁N₃ is probably a pyrimidine.

Which parts of the atoms interact in a chemical reaction?

The type(s)of bond produced when atoms share electrons equally is/are

An acid dissociates in water to release

Which of the following is an incorrect pairing?

A stable atom has ________ in its valence shell.

An unbranched polymer composed of simple sugars is a(n)

Nucleic acids,proteins,and complex carbohydrates are all produced by

All of the following are components of an amino acid EXCEPT a(n)

When a base dissolves in water it releases a(n)(electron/cation/hydrogen ion).

A Brief History of Microbiology

Cell Structure and Function

Microscopy, Staining, and Classification

Microbial Metabolism

Microbial Nutrition and Growth

Microbial Genetics

Recombinant DNA Technology

Controlling Microbial Growth in the Environment

Controlling Microbial Growth in the Body: Antimicrobial Drugs

Characterizing and Classifying Prokaryotes

Characterizing and Classifying Eukaryotes

Characterizing and Classifying Viruses, Viroids, and Prions

Infection, Infectious Diseases, and Epidemiology

Innate Immunity

Adaptive Immunity

Immunization and Immune Testing

Immune Disorders

Pathogenic Gram Positive Bacteria

Pathogenic Gram-Negative Cocci and Bacilli

Rickettsias, Chlamydias, Spirochetes, and Vibrios

Pathogenic Fungi

Parasitic Protozoa, Helminths, and Arthropod Vectors

Pathogenic DNA Viruses

Pathogenic RNA Viruses

Applied and Environmental Microbiology

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