Question 1

A monosaccharide is made up of several sugar molecules strung together.

Accepted Answer

A) True 
 B)False  False

Question 2

Most lipids contain one or more of the long,hydrophobic hydrocarbon chains known as ________.

Accepted Answer

fatty acids

Question 3

In the equation 2 H₂O₂ à 2 H₂O + O₂,the H₂O₂ molecules are the ________ and the H₂O + O₂ molecules are the ________.

Accepted Answer

A)  products; products 
B)  reactants; products 
C)  products; reactants 
D)  reactants; reactants 
A)  products; products 
B)  reactants; products 
C)  products; reactants 
D)  reactants; reactants B

Question 4

The sum of an atom's protons and neutrons is its ________.

Accepted Answer

The answer of The sum of an atom's protons and...

Question 5

ATP is a universal fuel for living organisms.The energy that ATP molecules deliver in chemical reactions is stored in

Accepted Answer

A)  covalent bonds between the molecule's phosphate groups. 
B)  covalent bonds between the molecule's sugar and phosphate groups. 
C)  hydrogen bonds between the bases of two of these molecules. 
D)  ionic bonds between the molecule's sugar and base. 
A)  covalent bonds between the molecule's phosphate groups. 
B)  covalent bonds between the molecule's sugar and phosphate groups. 
C)  hydrogen bonds between the bases of two of these molecules. 
D)  ionic bonds between the molecule's sugar and base.

Question 6

The monomers in proteins are ________.

Accepted Answer

The answer of The monomers in proteins are ________....

Question 7

Which of the following is NOT a function of cholesterol?

Accepted Answer

A)  Cholesterol is converted into other important molecules like steroid hormones. 
B)  Cholesterol is converted into a vitamin important in the growth and maintenance of bone and muscle. 
C)  Cholesterol is a necessary component in the cell membranes of plants. 
D)  A derivative of cholesterol aids in the digestion of fats. 
A)  Cholesterol is converted into other important molecules like steroid hormones. 
B)  Cholesterol is converted into a vitamin important in the growth and maintenance of bone and muscle. 
C)  Cholesterol is a necessary component in the cell membranes of plants. 
D)  A derivative of cholesterol aids in the digestion of fats.

Question 8

An acid is a polar substance that dissolves in water and

Accepted Answer

A)  becomes nonpolar. 
B)  leaves behind an OH- ion. 
C)  accepts hydrogen ions from the solution. 
D)  donates hydrogen ions to the solution. 
A)  becomes nonpolar. 
B)  leaves behind an OH- ion. 
C)  accepts hydrogen ions from the solution. 
D)  donates hydrogen ions to the solution.

Question 9

Based only on the following illustration,it could be predicted that ice floats on liquid water because

Accepted Answer

A)  the crystal structure of ice is more regular than that seen in liquid water. 
B)  the distance between water molecules in ice is greater than in liquid water. 
C)  the cool temperature of ice reduces the extent of molecular motion relative to liquid water. 
D)  when ice forms, the hydrogen bond in the water molecule becomes nonpolar; ice behaves like oil. 
A)  the crystal structure of ice is more regular than that seen in liquid water. 
B)  the distance between water molecules in ice is greater than in liquid water. 
C)  the cool temperature of ice reduces the extent of molecular motion relative to liquid water. 
D)  when ice forms, the hydrogen bond in the water molecule becomes nonpolar; ice behaves like oil.

Question 10

The most versatile atom in living systems is ________.

Accepted Answer

The answer of The most versatile atom in living systems...

Question 11

Of the following pH values,which indicates the most basic pH?

Accepted Answer

A)  3 
B)  7 
C)  8 
D)  10 
A)  3 
B)  7 
C)  8 
D)  10

Question 12

A molecule composed of amino acids is a

Accepted Answer

A)  nucleotide. 
B)  lipid. 
C)  carbohydrate. 
D)  protein. 
A)  nucleotide. 
B)  lipid. 
C)  carbohydrate. 
D)  protein.

Question 13

Chemical reactions rearrange atoms,but do not create or destroy them.

Accepted Answer

A) True 
 B)False

Question 14

The process of partial hydrogenation turns liquid plant lipids into semisolid lipids by

Accepted Answer

A)  adding antioxidants that prevent lipid oxidation. 
B)  creating hydrocarbon chains that are more kinked than those in natural fats. 
C)  substituting nitrogen for carbon in fatty acid chains. 
D)  removing double bonds and adding hydrogen to the fatty acid chains of plant lipids. 
A)  adding antioxidants that prevent lipid oxidation. 
B)  creating hydrocarbon chains that are more kinked than those in natural fats. 
C)  substituting nitrogen for carbon in fatty acid chains. 
D)  removing double bonds and adding hydrogen to the fatty acid chains of plant lipids.

Question 15

How many atoms are present in a single molecule of C₈H₁₀N₄O₂?

Accepted Answer

A)  4 
B)  8 
C)  12 
D)  24 
A)  4 
B)  8 
C)  12 
D)  24

Question 16

A type of organic compound that plays a role in both heredity and in energy delivery in cells is a ________.

Accepted Answer

The answer of A type of organic compound that plays...

Question 17

A solution with a pH of 7 is neither acidic nor basic.

Accepted Answer

A) True 
 B)False

Question 18

The following figure shows two hydrogen atoms.   How many covalent bonds will form between these two atoms?

Accepted Answer

A)  One 
B)  Two 
C)  Three 
D)  None; these atoms will form an ionic bond. 
A)  One 
B)  Two 
C)  Three 
D)  None; these atoms will form an ionic bond.

Question 19

Covalent bonds contain ions.

Accepted Answer

A) True 
 B)False

Question 20

A solution with a pH of 3 is

Accepted Answer

A)  acidic. 
B)  nonpolar. 
C)  basic. 
D)  neutral. 
A)  acidic. 
B)  nonpolar. 
C)  basic. 
D)  neutral.

Exam 2: The Chemistry of Life

A monosaccharide is made up of several sugar molecules strung together.

Most lipids contain one or more of the long,hydrophobic hydrocarbon chains known as ________.

In the equation 2 H₂O₂ à 2 H₂O + O₂,the H₂O₂ molecules are the ________ and the H₂O + O₂ molecules are the ________.

The sum of an atom's protons and neutrons is its ________.

ATP is a universal fuel for living organisms.The energy that ATP molecules deliver in chemical reactions is stored in

The monomers in proteins are ________.

Which of the following is NOT a function of cholesterol?

An acid is a polar substance that dissolves in water and

Based only on the following illustration,it could be predicted that ice floats on liquid water because

The most versatile atom in living systems is ________.

Of the following pH values,which indicates the most basic pH?

A molecule composed of amino acids is a

Chemical reactions rearrange atoms,but do not create or destroy them.

The process of partial hydrogenation turns liquid plant lipids into semisolid lipids by

How many atoms are present in a single molecule of C₈H₁₀N₄O₂?

A type of organic compound that plays a role in both heredity and in energy delivery in cells is a ________.

A solution with a pH of 7 is neither acidic nor basic.

The following figure shows two hydrogen atoms. How many covalent bonds will form between these two atoms?

Covalent bonds contain ions.

A solution with a pH of 3 is

The Nature of Science and the Characteristics of Life

Cell Structure and Internal Compartments

Cell Membranes, Transport, and Communication

Energy, Metabolism, and Enzymes

Photo Synthesis and Cellular Respiration

Cell Division

Cancer and Human Health

Patterns of Inheritance

Chromosomes and Human Genetics

DNA and Genes

From Gene to Protein

DNA Technology

How Evolution Works

The Origin of Species

The Evolution of Biodiversity

Biological Diversity, Bacteria, and Archaea

Protista, Plantae, and Fungi

Animalia

The Biosphere

Growth of Populations

Animal Behavior

Ecological Communities

Ecosystems

Global Change

Filters

In the equation 2 H₂O₂ à 2 H₂O + O₂,the H₂O₂ molecules are the and the H₂O + O₂ molecules are the .