Question 1

Nonpolar organic molecules are good examples of

Accepted Answer

A) electrolytes. 
B) molecules that will dissociate when placed into water. 
C) hydrophobic compounds. 
D) hydrophilic compounds. 
E) solutes. 
A) electrolytes. 
B) molecules that will dissociate when placed into water. 
C) hydrophobic compounds. 
D) hydrophilic compounds. 
E) solutes.

Question 2

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 3

Chemical reactions that absorb energy are called

Accepted Answer

A) exergonic. 
B) endergonic. 
C) equilibrial. 
D) decomposition. 
E) exchange. 
A) exergonic. 
B) endergonic. 
C) equilibrial. 
D) decomposition. 
E) exchange.

Question 4

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 5

A(n)________ is a pure substance composed of atoms of only one kind.

Accepted Answer

A) element 
B) molecule 
C) ion 
D) isotope 
E) compound 
A) element 
B) molecule 
C) ion 
D) isotope 
E) compound

Question 6

The reaction A + B + energy → AB is an example of a(n)________ reaction.

Accepted Answer

A) exergonic 
B) endergonic 
C) equilibrium 
D) decomposition 
E) exchange 
A) exergonic 
B) endergonic 
C) equilibrium 
D) decomposition 
E) exchange

Question 7

Which of the following is the symbol for an amino group?

Accepted Answer

A) -COOH 
B) -PO₃ 
C) -NH₂ 
D) -AMO 
E) -OH 
A) -COOH 
B) -PO₃ 
C) -NH₂ 
D) -AMO 
E) -OH

Question 8

Carbohydrates,lipids,and proteins are classified as

Accepted Answer

A) organic molecules. 
B) inorganic molecules. 
C) acids. 
D) salts. 
E) bases. 
A) organic molecules. 
B) inorganic molecules. 
C) acids. 
D) salts. 
E) bases.

Question 9

The term ________ means each enzyme catalyzes only one type of reaction.

Accepted Answer

A) saturation 
B) specificity 
C) inertia 
D) activation 
E) monoreactive 
A) saturation 
B) specificity 
C) inertia 
D) activation 
E) monoreactive

Question 10

When atoms complete their outer electron shell by sharing electrons,they form

Accepted Answer

A) ionic bonds. 
B) covalent bonds. 
C) hydrogen bonds. 
D) anions. 
E) cations. 
A) ionic bonds. 
B) covalent bonds. 
C) hydrogen bonds. 
D) anions. 
E) cations.

Question 11

Sodium (Na)has an atomic number of 1 1.How many electrons are in the outer electron shell of a neutral sodium atom?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 8 
A) 1 
B) 2 
C) 3 
D) 4 
E) 8

Question 12

The phosphorylation of adenosine forms

Accepted Answer

A) ADP. 
B) ATP. 
C) AMP. 
D) 2ATP. 
E) ribose. 
A) ADP. 
B) ATP. 
C) AMP. 
D) 2ATP. 
E) ribose.

Question 13

In the reaction listed below,what coefficient needs to be added to balance the equation? 6 CO₂ + 6 H₂O → C₆H₁₂O₆ + ________ O₂

Accepted Answer

A) 2 
B) 4 
C) 6 
D) 8 
E) 10 
A) 2 
B) 4 
C) 6 
D) 8 
E) 10

Question 14

To bond two monomers together,a molecule of water must be ________ to/from monomers.This process is called ________.

Accepted Answer

A) added; hydrolysis 
B) removed; dehydration synthesis 
C) removed; crenation 
D) added; denaturation 
E) added; ionization 
A) added; hydrolysis 
B) removed; dehydration synthesis 
C) removed; crenation 
D) added; denaturation 
E) added; ionization

Question 15

The "atomic number" of an atom is 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 16

Which of the following is both an anion and a compound?

Accepted Answer

A) Na⁺ 
B) Cl⁻ 
C) K⁺ 
D) HCO₃⁻ 
E) NaCl 
A) Na⁺ 
B) Cl⁻ 
C) K⁺ 
D) HCO₃⁻ 
E) NaCl

Question 17

Atoms of the same element whose nuclei contain the same number of protons,but different numbers of neutrons,are called

Accepted Answer

A) isotonics. 
B) heterotopes. 
C) isotopes. 
D) homotopes. 
E) heterotonics. 
A) isotonics. 
B) heterotopes. 
C) isotopes. 
D) homotopes. 
E) heterotonics.

Question 18

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 19

Of the following choices,the pH of the least acidic solution is

Accepted Answer

A) 6)0. 
B) 4)5. 
C) 2)3. 
D) 1)0. 
E) 12.0. 
A) 6)0. 
B) 4)5. 
C) 2)3. 
D) 1)0. 
E) 12.0.

Question 20

Which property of water helps keeps body temperature stabilized?

Accepted Answer

A) kinetic energy 
B) lubrication 
C) surface tension 
D) reactivity 
E) thermal inertia 
A) kinetic energy 
B) lubrication 
C) surface tension 
D) reactivity 
E) thermal inertia

Exam 2: The Chemical Level of Organization

Nonpolar organic molecules are good examples of

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

Chemical reactions that absorb energy are called

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

A(n)________ is a pure substance composed of atoms of only one kind.

The reaction A + B + energy → AB is an example of a(n)________ reaction.

Which of the following is the symbol for an amino group?

Carbohydrates,lipids,and proteins are classified as

The term ________ means each enzyme catalyzes only one type of reaction.

When atoms complete their outer electron shell by sharing electrons,they form

Sodium (Na)has an atomic number of 1 1.How many electrons are in the outer electron shell of a neutral sodium atom?

The phosphorylation of adenosine forms

In the reaction listed below,what coefficient needs to be added to balance the equation? 6 CO₂ + 6 H₂O → C₆H₁₂O₆ + ________ O₂

To bond two monomers together,a molecule of water must be ________ to/from monomers.This process is called ________.

The "atomic number" of an atom is determined by the number of ________ it has.

Which of the following is both an anion and a compound?

Atoms of the same element whose nuclei contain the same number of protons,but different numbers of neutrons,are called

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

Of the following choices,the pH of the least acidic solution is

Which property of water helps keeps body temperature stabilized?

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

Joints

Muscle Tissue

The Muscular System

Neural 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 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.

To bond two monomers together,a molecule of water must be to/from monomers.This process is called .