Question 1

The "atomic weight" of an atom reflects the average number of

Accepted Answer

A)  protons. 
B)  neutrons. 
C)  electrons. 
D)  protons + neutrons. 
E)  protons + neutrons + electrons. 
A)  protons. 
B)  neutrons. 
C)  electrons. 
D)  protons + neutrons. 
E)  protons + neutrons + electrons.

Question 2

When a small amount of HCl or NaOH is added to a solution of Na2HPO4, the pH of the solution barely changes. Based on these observations, all of the following are true concerning the compound Na2HPO4, except

Accepted Answer

A)  Na2HPO4 is able to accept extra hydrogen ions from the HCl. 
B)  Na2HPO4 is able to donate hydrogen ions to the OH- from NaOH. 
C)  Na2HPO4 adsorbs excess H+ and OH- directly onto the surface of its crystalline structure. 
D)  Na2HPO4 is a salt formed from reacting a strong base with a weak acid. 
E)  Na2HPO4 acts as a buffer. 
A)  Na2HPO4 is able to accept extra hydrogen ions from the HCl. 
B)  Na2HPO4 is able to donate hydrogen ions to the OH- from NaOH. 
C)  Na2HPO4 adsorbs excess H+ and OH- directly onto the surface of its crystalline structure. 
D)  Na2HPO4 is a salt formed from reacting a strong base with a weak acid. 
E)  Na2HPO4 acts as a buffer.

Question 3

In-Text Figure Based Questions
-How many phosphorylations does AMP undergo to become ATP? (Figure 2-26)

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 4

Ionic bonds are formed when

Accepted Answer

A)  atoms share electrons. 
B)  an electron or electrons are completely transferred from one atom to another. 
C)  a pair of electrons is shared unequally by two atoms. 
D)  hydrogen forms bonds with negatively charged atoms. 
E)  two or more atoms lose electrons at the same time. 
A)  atoms share electrons. 
B)  an electron or electrons are completely transferred from one atom to another. 
C)  a pair of electrons is shared unequally by two atoms. 
D)  hydrogen forms bonds with negatively charged atoms. 
E)  two or more atoms lose electrons at the same time.

Question 5

If the pH of the stomach is 2 what is the [H+]?

Accepted Answer

A)  1X10-2 mol/L 
B)  .2 mol/L 
C)  200 mol/L 
D)  2 mol/L 
E)  .10 mol/L 
A)  1X10-2 mol/L 
B)  .2 mol/L 
C)  200 mol/L 
D)  2 mol/L 
E)  .10 mol/L

Question 6

What is the pH of a solution with a [H+]=1X10-7 mol/L?

Accepted Answer

A)  2 
B)  7.4 
C)  6 
D)  7 
E)  8.2 
A)  2 
B)  7.4 
C)  6 
D)  7 
E)  8.2

Question 7

________ is a type of indigestible polysaccharide.

Accepted Answer

A)  Glycogen 
B)  Starch 
C)  Cellulose 
D)  Sucrose 
E)  Galactose 
A)  Glycogen 
B)  Starch 
C)  Cellulose 
D)  Sucrose 
E)  Galactose

Question 8

Which of the following is not a function of triglycerides?

Accepted Answer

A)  They are a reserve and important source of energy. 
B)  They help insulate against heat loss in cold climates. 
C)  They help protect organs by creating a cushion around the organ. 
D)  They act as a reserve for lipid soluble vitamins. 
E)  They act as a structural component of plasma membranes. 
A)  They are a reserve and important source of energy. 
B)  They help insulate against heat loss in cold climates. 
C)  They help protect organs by creating a cushion around the organ. 
D)  They act as a reserve for lipid soluble vitamins. 
E)  They act as a structural component of plasma membranes.

Question 9

Oppositely charged ions in solution are prevented from combining by

Accepted Answer

A)  heat capacity of water. 
B)  hydration spheres. 
C)  water's nonpolar nature. 
D)  free radicals. 
E)  hydrogen bonding. 
A)  heat capacity of water. 
B)  hydration spheres. 
C)  water's nonpolar nature. 
D)  free radicals. 
E)  hydrogen bonding.

Question 10

A high-energy bond in ATP is present between

Accepted Answer

A)  adenine and ribose. 
B)  adenine and a phosphate group. 
C)  the first and second phosphate group. 
D)  the second and third phosphate group. 
E)  phosphate groups 1 and 2 and between phosphate groups 2 and 3. 
A)  adenine and ribose. 
B)  adenine and a phosphate group. 
C)  the first and second phosphate group. 
D)  the second and third phosphate group. 
E)  phosphate groups 1 and 2 and between phosphate groups 2 and 3.

Question 11

The group of organic compounds containing carbon, hydrogen, and oxygen in a near 1:2:1 ratio is definedasa

Accepted Answer

A)  carbohydrate. 
B)  lipid. 
C)  protein. 
D)  nucleic acid. 
E)  saturated fat. 
A)  carbohydrate. 
B)  lipid. 
C)  protein. 
D)  nucleic acid. 
E)  saturated fat.

Question 12

Explain the role of water molecules in polysaccharide formation.

Accepted Answer

Water molecules are

Question 13

The hydrolysis of ATP yields ADP, phosphate ion, and

Accepted Answer

A)  AMP. 
B)  H2O. 
C)  energy. 
D)  adenosine. 
E)  nuclease. 
A)  AMP. 
B)  H2O. 
C)  energy. 
D)  adenosine. 
E)  nuclease.

Question 14

Many lipids are composed of fatty acids and

Accepted Answer

A)  glycerol. 
B)  amino acids. 
C)  sugars. 
D)  monosaccharides. 
E)  polypeptides. 
A)  glycerol. 
B)  amino acids. 
C)  sugars. 
D)  monosaccharides. 
E)  polypeptides.

Question 15

Each of the following is an inorganic compound except

Accepted Answer

A)  water. 
B)  acids. 
C)  bases. 
D)  salts. 
E)  carbohydrates. 
A)  water. 
B)  acids. 
C)  bases. 
D)  salts. 
E)  carbohydrates.

Question 16

A fatty acid that contains two or more double covalent bonds is said to be

Accepted Answer

A)  saturated. 
B)  monounsaturated. 
C)  polyunsaturated. 
D)  hydrogenated. 
E)  carboxylated. 
A)  saturated. 
B)  monounsaturated. 
C)  polyunsaturated. 
D)  hydrogenated. 
E)  carboxylated.

Question 17

According to the rules of complementary base pairing in nucleic acids, cytosine would pair with the base

Accepted Answer

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

Question 18

Activation energy is

Accepted Answer

A)  the energy of motion. 
B)  stored energy. 
C)  the same as heat energy. 
D)  the energy in chemical bonds. 
E)  the energy needed to start a reaction. 
A)  the energy of motion. 
B)  stored energy. 
C)  the same as heat energy. 
D)  the energy in chemical bonds. 
E)  the energy needed to start a reaction.

Question 19

Collectively, reactions that build new molecules are known as

Accepted Answer

A)  anabolic. 
B)  metabolic. 
C)  synthetic reactions. 
D)  exchange reactions. 
E)  catabolic. 
A)  anabolic. 
B)  metabolic. 
C)  synthetic reactions. 
D)  exchange reactions. 
E)  catabolic.

Question 20

The three familiar states of matter are solids, liquids, and

Accepted Answer

A)  globules. 
B)  fibroids. 
C)  gases. 
D)  crystals. 
E)  vapors. 
A)  globules. 
B)  fibroids. 
C)  gases. 
D)  crystals. 
E)  vapors.

Exam 2: The Chemical Level of Organization

The "atomic weight" of an atom reflects the average number of

When a small amount of HCl or NaOH is added to a solution of Na2HPO4, the pH of the solution barely changes. Based on these observations, all of the following are true concerning the compound Na2HPO4, except

In-Text Figure Based Questions -How many phosphorylations does AMP undergo to become ATP? (Figure 2-26)

Ionic bonds are formed when

If the pH of the stomach is 2 what is the [H+]?

What is the pH of a solution with a [H+]=1X10-7 mol/L?

________ is a type of indigestible polysaccharide.

Which of the following is not a function of triglycerides?

Oppositely charged ions in solution are prevented from combining by

A high-energy bond in ATP is present between

The group of organic compounds containing carbon, hydrogen, and oxygen in a near 1:2:1 ratio is definedasa

Explain the role of water molecules in polysaccharide formation.

The hydrolysis of ATP yields ADP, phosphate ion, and

Many lipids are composed of fatty acids and

Each of the following is an inorganic compound except

A fatty acid that contains two or more double covalent bonds is said to be

According to the rules of complementary base pairing in nucleic acids, cytosine would pair with the base

Activation energy is

Collectively, reactions that build new molecules are known as

The three familiar states of matter are solids, liquids, and

An Introduction to Anatomy and Physiology

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

Bones and Bone Structure

The Axial Skeleton

The Appendicular Skeleton

Joints

Muscle Tissue

The Muscular System

Nervous Tissue

The Spinal Cord, Spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Sensory Pathways and the Somatic Nervous System

The Autonomic Nervous System and Higher-Order Functions

The Special Senses

The Endocrine System

Blood

The Heart

Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism, Nutrition, and Energetics

The Urinary System

Fluid, Electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

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