Question 1

Interaction between individual polypeptide chains to form a protein complex is ________ structure.

Accepted Answer

A) primary 
B) secondary 
C) tertiary 
D) quaternary 
E) pentagonal 
A) primary 
B) secondary 
C) tertiary 
D) quaternary 
E) pentagonal

Question 2

Identify the product formed from the phosphorylation of ADP.

Accepted Answer

A) adenosine diphosphate 
B) adenine 
C) adenosine triphosphate 
D) deoxyribonucleic acid 
E) ribose 
A) adenosine diphosphate 
B) adenine 
C) adenosine triphosphate 
D) deoxyribonucleic acid 
E) ribose

Question 3

The formula for methane gas is CH₄.What does the formula 4CH₄ represent?

Accepted Answer

A) a molecule with 4 carbon atoms 
B) a molecule with 4 carbon atoms and 16 hydrogen atoms 
C) 4 molecules,each containing a carbon and a hydrogen atom 
D) 4 molecules,each containing a carbon atom and 4 hydrogen atoms 
E) an inorganic compound with ionic bonds 
A) a molecule with 4 carbon atoms 
B) a molecule with 4 carbon atoms and 16 hydrogen atoms 
C) 4 molecules,each containing a carbon and a hydrogen atom 
D) 4 molecules,each containing a carbon atom and 4 hydrogen atoms 
E) an inorganic compound with ionic bonds

Question 4

Kinetic energy is stored as ________ energy when a spring is stretched.

Accepted Answer

A) potential 
B) possible 
C) plausible 
D) probable 
E) positive 
A) potential 
B) possible 
C) plausible 
D) probable 
E) positive

Question 5

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 6

Oxygen (atomic number 8)requires how many additional electrons to fill its outer electron shell?

Accepted Answer

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

Question 7

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 8

The maximum rate of an enzyme reaction

Accepted Answer

A) occurs during dehydration. 
B) occurs during hydrolysis. 
C) occurs during synthesis. 
D) is reversible. 
E) occurs at the saturation limit. 
A) occurs during dehydration. 
B) occurs during hydrolysis. 
C) occurs during synthesis. 
D) is reversible. 
E) occurs at the saturation limit.

Question 9

Molecules that have the same molecular formula but different structural formulas are called

Accepted Answer

A) isotopes. 
B) isomers. 
C) isozymes. 
D) isotypes. 
E) isomoles. 
A) isotopes. 
B) isomers. 
C) isozymes. 
D) isotypes. 
E) isomoles.

Question 10

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 11

Which pH is closest to normal body pH?

Accepted Answer

A) pH 7 
B) pH 8 
C) pH 4 
D) pH 3 
E) pH 2 
A) pH 7 
B) pH 8 
C) pH 4 
D) pH 3 
E) pH 2

Question 12

Lipids that are produced by nearly every tissue in the body and act as local regulators are the

Accepted Answer

A) prostaglandins. 
B) steroids. 
C) monoglycerides. 
D) phospholipids. 
E) glycolipids. 
A) prostaglandins. 
B) steroids. 
C) monoglycerides. 
D) phospholipids. 
E) glycolipids.

Question 13

Glycoproteins and proteoglycans are combinations of amino acids and

Accepted Answer

A) carbohydrates. 
B) fatty acids. 
C) lipids. 
D) nucleic acids. 
E) inorganic compounds. 
A) carbohydrates. 
B) fatty acids. 
C) lipids. 
D) nucleic acids. 
E) inorganic compounds.

Question 14

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 15

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 16

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 17

In any given molecule,the sum of the atomic weights of its component atoms is called

Accepted Answer

A) molecular mass. 
B) molecular weight. 
C) atomic mass. 
D) atomic weight. 
E) chemical mass. 
A) molecular mass. 
B) molecular weight. 
C) atomic mass. 
D) atomic weight. 
E) chemical mass.

Question 18

The center of an atom is called the

Accepted Answer

A) core. 
B) hub. 
C) middle point. 
D) nucleus. 
E) focus. 
A) core. 
B) hub. 
C) middle point. 
D) nucleus. 
E) focus.

Question 19

You would expect a peptide bond to link

Accepted Answer

A) two simple sugars. 
B) two amino acids. 
C) two nucleotides. 
D) a sugar and a peptide. 
E) a peptide and a fatty acid. 
A) two simple sugars. 
B) two amino acids. 
C) two nucleotides. 
D) a sugar and a peptide. 
E) a peptide and a fatty acid.

Question 20

In an aqueous solution,cations are attracted toward

Accepted Answer

A) sodium. 
B) salt. 
C) buffers. 
D) anions. 
E) hydrogen ions. 
A) sodium. 
B) salt. 
C) buffers. 
D) anions. 
E) hydrogen ions.

Exam 2: The Chemical Level of Organization

Interaction between individual polypeptide chains to form a protein complex is ________ structure.

Identify the product formed from the phosphorylation of ADP.

The formula for methane gas is CH₄.What does the formula 4CH₄ represent?

Kinetic energy is stored as ________ energy when a spring is stretched.

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

Oxygen (atomic number 8)requires how many additional electrons to fill its outer electron shell?

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

The maximum rate of an enzyme reaction

Molecules that have the same molecular formula but different structural formulas are called

Ionic bonds are formed when

Which pH is closest to normal body pH?

Lipids that are produced by nearly every tissue in the body and act as local regulators are the

Glycoproteins and proteoglycans are combinations of amino acids and

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

A high-energy bond in ATP is present between

Cholesterol,phospholipids,and glycolipids are examples of

In any given molecule,the sum of the atomic weights of its component atoms is called

The center of an atom is called the

You would expect a peptide bond to link

In an aqueous solution,cations are attracted toward

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

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