Question 1

When placed in water,an inorganic compound dissociates 99 percent,forming hydrogen ions and anions.This compound would be

Accepted Answer

A) a strong base. 
B) a weak base. 
C) a strong acid. 
D) a weak acid. 
E) a salt. 
A) a strong base. 
B) a weak base. 
C) a strong acid. 
D) a weak acid. 
E) a salt.

Question 2

What role do buffer systems play in the human body?

Accepted Answer

Buffer systems help maintain p

Question 3

Identify 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 4

The chemical notation that indicates concentration is represented as

Accepted Answer

A) (). 
B) . 
C) [ ]. 
D) {}. 
E) ||. 
A) (). 
B) . 
C) [ ]. 
D) {}. 
E) ||.

Question 5

Sodium (Na)has an atomic number of 11. 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 6

An excess of hydrogen ions in the body fluids can have fatal results because this can

Accepted Answer

A) break chemical bonds. 
B) change the shape of large complex molecules,rendering them nonfunctional. 
C) disrupt tissue functions. 
D) change body fluid pH. 
E) All of the answers are correct. 
A) break chemical bonds. 
B) change the shape of large complex molecules,rendering them nonfunctional. 
C) disrupt tissue functions. 
D) change body fluid pH. 
E) All of the answers are correct.

Question 7

Alaska Natives have a lower incidence of heart disease even though their diets are high in fat and cholesterol.This may be due to the large amount of ________ in their diets.

Accepted Answer

A) vitamins 
B) triglycerides 
C) prostaglandins 
D) omega-3 fatty acids 
E) oleic acid 
A) vitamins 
B) triglycerides 
C) prostaglandins 
D) omega-3 fatty acids 
E) oleic acid

Question 8

Magnesium atoms have two electrons in the outermost shell.As a result,you would expect magnesium to form ions with a charge of

Accepted Answer

A) +1. 
B) +2. 
C) -1. 
D) -2. 
E) either +2 or -2. 
A) +1. 
B) +2. 
C) -1. 
D) -2. 
E) either +2 or -2.

Question 9

A solution containing equal numbers of hydrogen ions and hydroxide ions is

Accepted Answer

A) acidic. 
B) basic. 
C) neutral. 
D) alkaline. 
E) in equilibrium. 
A) acidic. 
B) basic. 
C) neutral. 
D) alkaline. 
E) in equilibrium.

Question 10

When two monosaccharides undergo a dehydration synthesis,

Accepted Answer

A) two new monosaccharides are formed. 
B) a disaccharide is formed. 
C) a polysaccharide is formed. 
D) a starch is formed. 
E) hydrolysis occurs. 
A) two new monosaccharides are formed. 
B) a disaccharide is formed. 
C) a polysaccharide is formed. 
D) a starch is formed. 
E) hydrolysis occurs.

Question 11

Molecules that do not readily interact with water are called ________.

Accepted Answer

The answer of Molecules that do not readily interact with...

Question 12

Electrons in an atom occupy an orderly series of electron shells or ________.

Accepted Answer

The answer of Electrons in an atom occupy an orderly...

Question 13

A dust particle floating on a water surface illustrates

Accepted Answer

A) surface tension. 
B) chemical tension. 
C) static electricity. 
D) heat capacity. 
E) hydrophilic attraction. 
A) surface tension. 
B) chemical tension. 
C) static electricity. 
D) heat capacity. 
E) hydrophilic attraction.

Question 14

In an ionic bond,the electron donor is the ________,whereas the electron acceptor is the ________.

Accepted Answer

A) acid,base 
B) salt,ion 
C) anion,cation 
D) base,acid 
E) cation,anion 
A) acid,base 
B) salt,ion 
C) anion,cation 
D) base,acid 
E) cation,anion

Question 15

An amino acid is to a protein as ________ is to a nucleic acid.

Accepted Answer

A) a purine 
B) a nucleotide 
C) a protein 
D) a proton 
E) a neutron 
A) a purine 
B) a nucleotide 
C) a protein 
D) a proton 
E) a neutron

Question 16

Elements that have atoms with full outer shells of electrons

Accepted Answer

A) will form many compounds. 
B) will normally form anions. 
C) will normally form cations. 
D) frequently form hydrogen bonds. 
E) are inert gases. 
A) will form many compounds. 
B) will normally form anions. 
C) will normally form cations. 
D) frequently form hydrogen bonds. 
E) are inert gases.

Question 17

The most important metabolic fuel molecule in the body is

Accepted Answer

A) sucrose. 
B) caffeine. 
C) protein. 
D) vitamins. 
E) glucose. 
A) sucrose. 
B) caffeine. 
C) protein. 
D) vitamins. 
E) glucose.

Question 18

Cholesterol,phospholipids,and glycolipids are examples of

Accepted Answer

A) dietary fats. 
B) prostaglandins. 
C) structural lipids. 
D) lipid drugs. 
E) steroids. 
A) dietary fats. 
B) prostaglandins. 
C) structural lipids. 
D) lipid drugs. 
E) steroids.

Question 19

Carbohydrate molecules

Accepted Answer

A) are the building blocks of cellular membranes. 
B) form the regulatory molecules known as enzymes. 
C) are the body's most readily available source of energy. 
D) are composed of C,H,O,and N atoms. 
E) contain the genetic information found in cells. 
A) are the building blocks of cellular membranes. 
B) form the regulatory molecules known as enzymes. 
C) are the body's most readily available source of energy. 
D) are composed of C,H,O,and N atoms. 
E) contain the genetic information found in cells.

Question 20

An example of an inorganic substance is

Accepted Answer

A) fructose. 
B) water. 
C) glycerol. 
D) carbon dioxide. 
E) water and carbon dioxide. 
A) fructose. 
B) water. 
C) glycerol. 
D) carbon dioxide. 
E) water and carbon dioxide.

Exam 2: The Chemical Level of Organization

When placed in water,an inorganic compound dissociates 99 percent,forming hydrogen ions and anions.This compound would be

What role do buffer systems play in the human body?

Identify which of the following is both an anion and a compound:

The chemical notation that indicates concentration is represented as

Sodium (Na)has an atomic number of 11. How many electrons are in the outer electron shell of a neutral sodium atom?

An excess of hydrogen ions in the body fluids can have fatal results because this can

Alaska Natives have a lower incidence of heart disease even though their diets are high in fat and cholesterol.This may be due to the large amount of ________ in their diets.

Magnesium atoms have two electrons in the outermost shell.As a result,you would expect magnesium to form ions with a charge of

A solution containing equal numbers of hydrogen ions and hydroxide ions is

When two monosaccharides undergo a dehydration synthesis,

Molecules that do not readily interact with water are called ________.

Electrons in an atom occupy an orderly series of electron shells or ________.

A dust particle floating on a water surface illustrates

In an ionic bond,the electron donor is the ________,whereas the electron acceptor is the ________.

An amino acid is to a protein as ________ is to a nucleic acid.

Elements that have atoms with full outer shells of electrons

The most important metabolic fuel molecule in the body is

Cholesterol,phospholipids,and glycolipids are examples of

Carbohydrate molecules

An example of an inorganic substance is

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

In an ionic bond,the electron donor is the ,whereas the electron acceptor is the .