Question 1

PET imaging follows the emission of

Accepted Answer

A)  positrons. 
B)  electrons. 
C)  neutrons. 
D)  protons. 
A)  positrons. 
B)  electrons. 
C)  neutrons. 
D)  protons.

Question 2

A person has alkalosis if the blood pH

Accepted Answer

A)  is above 7.0. 
B)  is below 7.0. 
C)  rises above 7.5. 
D)  drops below 7.3. 
A)  is above 7.0. 
B)  is below 7.0. 
C)  rises above 7.5. 
D)  drops below 7.3.

Question 3

The secondary structure of a protein molecule is the result of

Accepted Answer

A)  oxygen double bonds. 
B)  covalent bonds. 
C)  ionic bonds. 
D)  hydrogen bonds. 
A)  oxygen double bonds. 
B)  covalent bonds. 
C)  ionic bonds. 
D)  hydrogen bonds.

Question 4

The ______ uses iodine in a synthesis reaction.

Accepted Answer

A)  spleen 
B)  liver 
C)  thymus 
D)  thyroid gland 
A)  spleen 
B)  liver 
C)  thymus 
D)  thyroid gland

Question 5

Which of the following molecules does not have a polar region?

Accepted Answer

A)  Water 
B)  Triglyceride 
C)  Water-soluble amino acid 
D)  Glucose 
A)  Water 
B)  Triglyceride 
C)  Water-soluble amino acid 
D)  Glucose

Question 6

Isotopes of an element have

Accepted Answer

A)  the same atomic number and same atomic weight. 
B)  the same atomic number but different atomic weights. 
C)  different atomic numbers but the same atomic weight. 
D)  different atomic numbers and different atomic weights. 
A)  the same atomic number and same atomic weight. 
B)  the same atomic number but different atomic weights. 
C)  different atomic numbers but the same atomic weight. 
D)  different atomic numbers and different atomic weights.

Question 7

The isotope most likely to be used to study the thyroid gland is

Accepted Answer

A)  iodine-131. 
B)  iron-59. 
C)  thallium-201. 
D)  cobalt-60. 
A)  iodine-131. 
B)  iron-59. 
C)  thallium-201. 
D)  cobalt-60.

Question 8

An atom with 10 protons and which has lost 2 electrons is electrically neutral.

Accepted Answer

A) True 
 B)False

Question 9

At atom that has gained or lost electrons is called an ion.

Accepted Answer

A) True 
 B)False

Question 10

Chemically inert atoms always have their outermost electron shell full.

Accepted Answer

A) True 
 B)False

Question 11

Electrolytes are substances that

Accepted Answer

A)  form covalent bonds with water. 
B)  ionize in water. 
C)  cannot conduct electricity in solution. 
D)  form bonds that are stable in water. 
A)  form covalent bonds with water. 
B)  ionize in water. 
C)  cannot conduct electricity in solution. 
D)  form bonds that are stable in water.

Question 12

Which of these is not a monosaccharide?

Accepted Answer

A)  Glucose 
B)  Ribose 
C)  6-carbon sugar 
D)  Sucrose 
A)  Glucose 
B)  Ribose 
C)  6-carbon sugar 
D)  Sucrose

Question 13

The atomic weight of an element whose atoms contain 8 protons, 8 electrons, and 8 neutrons is

Accepted Answer

A)  8. 
B)  16. 
C)  24. 
D)  32. 
A)  8. 
B)  16. 
C)  24. 
D)  32.

Question 14

A decomposition reaction can be symbolized by

Accepted Answer

A)  A + B → C + D 
B)  A + B → AB 
C)  AB → A + B 
D)  C +   → AB 
A)  A + B → C + D 
B)  A + B → AB 
C)  AB → A + B 
D)  C +   → AB

Question 15

Atomic radiation is useful for treating cancer because

Accepted Answer

A)  radiation affects cancer cells but not normal cells. 
B)  radiation protects normal cells against the effects of cancer. 
C)  radiation harms cancer cells more readily than it does most non-cancer cells. 
D)  normal cells are not affected by radiation. 
A)  radiation affects cancer cells but not normal cells. 
B)  radiation protects normal cells against the effects of cancer. 
C)  radiation harms cancer cells more readily than it does most non-cancer cells. 
D)  normal cells are not affected by radiation.

Question 16

Bases reacting with acids form ________ and water.

Accepted Answer

A)  buffers 
B)  salts 
C)  new elements 
D)  proteins 
A)  buffers 
B)  salts 
C)  new elements 
D)  proteins

Question 17

When forming a bond, an atom that has 3 electrons in its second shell and a filled first shell will

Accepted Answer

A)  lose 3 electrons from its second shell. 
B)  lose all of the electrons from its first shell. 
C)  lose all of the electrons from both its first and second shells. 
D)  gain 5 electrons in its second shell. 
A)  lose 3 electrons from its second shell. 
B)  lose all of the electrons from its first shell. 
C)  lose all of the electrons from both its first and second shells. 
D)  gain 5 electrons in its second shell.

Question 18

Synthesis reactions are particularly important in the body for

Accepted Answer

A)  release of energy. 
B)  digestion of food products. 
C)  growth of body parts. 
D)  neutralization of acids by buffers. 
A)  release of energy. 
B)  digestion of food products. 
C)  growth of body parts. 
D)  neutralization of acids by buffers.

Question 19

Sodium ions and calcium ions are examples of

Accepted Answer

A)  cations. 
B)  uncharged particles. 
C)  anions. 
D)  salts. 
A)  cations. 
B)  uncharged particles. 
C)  anions. 
D)  salts.

Question 20

The parts of a protein that change when it denatures are

Accepted Answer

A)  the primary and secondary structures. 
B)  the secondary and tertiary structures. 
C)  the amino acid sequence and the secondary structure. 
D)  the tertiary and quaternary structures. 
A)  the primary and secondary structures. 
B)  the secondary and tertiary structures. 
C)  the amino acid sequence and the secondary structure. 
D)  the tertiary and quaternary structures.

Exam 2: Chemical Basis of Life

PET imaging follows the emission of

A person has alkalosis if the blood pH

The secondary structure of a protein molecule is the result of

The ______ uses iodine in a synthesis reaction.

Which of the following molecules does not have a polar region?

Isotopes of an element have

The isotope most likely to be used to study the thyroid gland is

An atom with 10 protons and which has lost 2 electrons is electrically neutral.

At atom that has gained or lost electrons is called an ion.

Chemically inert atoms always have their outermost electron shell full.

Electrolytes are substances that

Which of these is not a monosaccharide?

The atomic weight of an element whose atoms contain 8 protons, 8 electrons, and 8 neutrons is

A decomposition reaction can be symbolized by

Atomic radiation is useful for treating cancer because

Bases reacting with acids form ________ and water.

When forming a bond, an atom that has 3 electrons in its second shell and a filled first shell will

Synthesis reactions are particularly important in the body for

Sodium ions and calcium ions are examples of

The parts of a protein that change when it denatures are

Introduction to Human Anatomy and Physiology

Cells

Cellular Metabolism

Tissues

Integumentary System

Skeletal System

Joints of the Skeletal System

Muscular System

Nervous System I: Basic Structure and Function

Nervous System II: Division of the Nervous System

Nervous System III: Senses

Endocrine System

Blood

Cardiovascular System

Lymphatic System and Immunity

Digestive System

Nutrition and Metabolism

Respiratory System

Urinary System

Water, Electrolyte, and Acid-Based Balance

Reproductive Systems

Pregnancy, Growth, and Development

Genetics and Genomics

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