Question 1

How does the DNA molecule control the appearance and function of a cell?

Accepted Answer

The DNA molecule controls the synthesis

Question 2

The smallest stable units of matter are

Accepted Answer

A) atoms. 
B) molecules. 
C) protons. 
D) neutrons. 
E) electrons. 
A) atoms. 
B) molecules. 
C) protons. 
D) neutrons. 
E) electrons.

Question 3

The innermost electron shell in an atom holds up to ________ electrons.

Accepted Answer

A) 1 
B) 2 
C) 4 
D) 6 
E) 8 
A) 1 
B) 2 
C) 4 
D) 6 
E) 8

Question 4

The purines found in DNA are ________ and guanine.

Accepted Answer

The answer of The purines found in DNA are ________...

Question 5

The reaction N₂ + 3 H₂ → 2 NH₃ is an example of a(n)

Accepted Answer

A) exchange reaction. 
B) decomposition reaction. 
C) synthesis reaction. 
D) enzyme reaction. 
E) metabolic reaction. 
A) exchange reaction. 
B) decomposition reaction. 
C) synthesis reaction. 
D) enzyme reaction. 
E) metabolic reaction.

Question 6

The molecule NO is known as

Accepted Answer

A) nitric oxide. 
B) noxious oxide. 
C) noxious oxygen. 
D) nitric oxygen. 
E) nitrous oxide. 
A) nitric oxide. 
B) noxious oxide. 
C) noxious oxygen. 
D) nitric oxygen. 
E) nitrous oxide.

Question 7

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

Accepted Answer

The answer of The three familiar states of matter are...

Question 8

A nucleotide consists of

Accepted Answer

A) a five-carbon sugar and phosphate group. 
B) a five-carbon sugar and a nitrogenous base. 
C) a phosphate group and a nitrogenous base. 
D) a five-carbon sugar,a nitrogenous base,and a phosphate group. 
E) a five-carbon sugar and an amino acid. 
A) a five-carbon sugar and phosphate group. 
B) a five-carbon sugar and a nitrogenous base. 
C) a phosphate group and a nitrogenous base. 
D) a five-carbon sugar,a nitrogenous base,and a phosphate group. 
E) a five-carbon sugar and an amino acid.

Question 9

The mass of an atom is largely determined by the number of ________ it has.

Accepted Answer

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

Question 10

The mass number represents the number of

Accepted Answer

A) protons in an atom. 
B) electrons in an ion. 
C) neutrons in an atom. 
D) protons + neutrons. 
E) neutrons + electrons. 
A) protons in an atom. 
B) electrons in an ion. 
C) neutrons in an atom. 
D) protons + neutrons. 
E) neutrons + electrons.

Question 11

Which of the following is/are needed to form a triglyceride molecule?

Accepted Answer

A) 3 glycerol molecules 
B) 1 glycerol molecule 
C) 3 fatty acid molecules 
D) 3 glycerol molecules and 3 fatty acid molecules 
E) 3 fatty acid molecules and 1 glycerol molecule 
A) 3 glycerol molecules 
B) 1 glycerol molecule 
C) 3 fatty acid molecules 
D) 3 glycerol molecules and 3 fatty acid molecules 
E) 3 fatty acid molecules and 1 glycerol molecule

Question 12

Of the list below,which has the highest concentration of hydroxide ions?

Accepted Answer

A) pH 1 
B) pH 14 
C) pH 7 
D) pH 10 
E) pH 2 
A) pH 1 
B) pH 14 
C) pH 7 
D) pH 10 
E) pH 2

Question 13

If a substance has a pH that is greater than 7,it is

Accepted Answer

A) neutral. 
B) acidic. 
C) alkaline. 
D) a buffer. 
E) a salt. 
A) neutral. 
B) acidic. 
C) alkaline. 
D) a buffer. 
E) a salt.

Question 14

Chemical reactions that yield energy,such as heat,are said to be

Accepted Answer

A) endergonic. 
B) activated. 
C) exergonic. 
D) neutral. 
E) thermonuclear. 
A) endergonic. 
B) activated. 
C) exergonic. 
D) neutral. 
E) thermonuclear.

Question 15

Ions with a positive charge are called ________.

Accepted Answer

The answer of Ions with a positive charge are called...

Question 16

If an element is composed of atoms with an atomic number of 6 and a mass number of 14,then a neutral atom of this element contains

Accepted Answer

A) 6 protons. 
B) 8 electrons. 
C) 8 neutrons. 
D) 6 protons and 8 electrons. 
E) 6 protons and 8 neurons. 
A) 6 protons. 
B) 8 electrons. 
C) 8 neutrons. 
D) 6 protons and 8 electrons. 
E) 6 protons and 8 neurons.

Question 17

Fructose is

Accepted Answer

A) a hexose. 
B) an isomer of glucose. 
C) found in male reproductive fluids. 
D) a carbohydrate. 
E) All of the answers are correct. 
A) a hexose. 
B) an isomer of glucose. 
C) found in male reproductive fluids. 
D) a carbohydrate. 
E) All of the answers are correct.

Question 18

All fatty acids contain a functional group at one end called the ________.

Accepted Answer

carboxylic

Question 19

A(n)________ removes hydrogen ions and a(n)________ releases hydrogen ions.

Accepted Answer

A) acid; base 
B) base; acid 
C) compound; element 
D) element; compound 
E) molecule; acid 
A) acid; base 
B) base; acid 
C) compound; element 
D) element; compound 
E) molecule; acid

Question 20

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.

Exam 2: The Chemical Level of Organization

How does the DNA molecule control the appearance and function of a cell?

The smallest stable units of matter are

The innermost electron shell in an atom holds up to ________ electrons.

The purines found in DNA are ________ and guanine.

The reaction N₂ + 3 H₂ → 2 NH₃ is an example of a(n)

The molecule NO is known as

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

A nucleotide consists of

The mass of an atom is largely determined by the number of ________ it has.

The mass number represents the number of

Which of the following is/are needed to form a triglyceride molecule?

Of the list below,which has the highest concentration of hydroxide ions?

If a substance has a pH that is greater than 7,it is

Chemical reactions that yield energy,such as heat,are said to be

Ions with a positive charge are called ________.

If an element is composed of atoms with an atomic number of 6 and a mass number of 14,then a neutral atom of this element contains

Fructose is

All fatty acids contain a functional group at one end called the ________.

A(n)________ removes hydrogen ions and a(n)________ releases hydrogen ions.

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

An Introduction to Anatomy and Physiology

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

Osseous Tissue and Bone Structure

The Axial Skeleton

The Appendicular Skeleton

Articulations

Muscle Tissue

The Muscular System

Neural Tissue

The Spinal Cord, spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Neural Integration I: Sensory Pathways and the Somatic Nervous System

Neural Integration Ii: the Autonomic Nervous System and

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 and Energetics

The Urinary System

Fluid, electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

Filters

A(n) removes hydrogen ions and a(n) releases hydrogen ions.