Question 1

Briefly describe the octet rule.

Accepted Answer

One atom is more likely to com

Question 2

This lipid is used by the body as a precursor for the production of steroid hormones.

Accepted Answer

A) arachidonic acid 
B) phospholipid 
C) cholesterol 
D) triglyceride 
E) lipoprotein 
A) arachidonic acid 
B) phospholipid 
C) cholesterol 
D) triglyceride 
E) lipoprotein

Question 3

A solute that readily dissolves in water is

Accepted Answer

A) hydrophobic. 
B) hydrostatic. 
C) lipophilic. 
D) hydrophilic. 
E) hydrozone. 
A) hydrophobic. 
B) hydrostatic. 
C) lipophilic. 
D) hydrophilic. 
E) hydrozone.

Question 4

Which of the following is a monosaccharide that is used by cells to produce energy?

Accepted Answer

A) glucose 
B) sucrose 
C) lactose 
D) glycogen 
E) maltose 
A) glucose 
B) sucrose 
C) lactose 
D) glycogen 
E) maltose

Question 5

Which type of chemical bond involves the sharing of valence electron pairs between two atoms?

Accepted Answer

A) covalent 
B) ionic 
C) hydrogen 
D) atomic 
E) electronic 
A) covalent 
B) ionic 
C) hydrogen 
D) atomic 
E) electronic

Question 6

What is the name given to a negatively charged atom?

Accepted Answer

A) superoxide 
B) isotope 
C) catalyst 
D) anion 
E) cation 
A) superoxide 
B) isotope 
C) catalyst 
D) anion 
E) cation

Question 7

This type of protein protects against pathogens.

Accepted Answer

A) contractile 
B) immunological 
C) regulatory 
D) catalytic 
E) transport 
A) contractile 
B) immunological 
C) regulatory 
D) catalytic 
E) transport

Question 8

Which relatively weak type of bond helps stabilize the three dimensional structure of large molecules like proteins and DNA?

Accepted Answer

A) nonpolar covalent 
B) polar covalent 
C) hydrogen 
D) ionic 
E) atomic 
A) nonpolar covalent 
B) polar covalent 
C) hydrogen 
D) ionic 
E) atomic

Question 9

What type of molecule is shown in the diagram? Where in a human body cell would this type of molecule be commonly found? What special chemical properties does this molecule possess that allows it to accomplish its functions?

Accepted Answer

This is a phospholipid found in the plas

Question 10

Which of the following describes the major significance of the element chlorine in the human body?

Accepted Answer

A) ionized form makes body fluids acidic 
B) ionized form is most plentiful anion in extracellular fluid 
C) forms backbone of all organic molecules 
D) required for bone and tooth structure 
E) ionized form is most plentiful cation in extracellular fluid 
A) ionized form makes body fluids acidic 
B) ionized form is most plentiful anion in extracellular fluid 
C) forms backbone of all organic molecules 
D) required for bone and tooth structure 
E) ionized form is most plentiful cation in extracellular fluid

Question 11

The three types of subatomic particles that are important for understanding chemical reactions in the human body are

Accepted Answer

A) neutrons,quarks,and muons. 
B) protons,neutrons,and electrons. 
C) muons,positons,and neutrons. 
D) electrons,quarks,and protons. 
E) positons,protons,and neutrons. 
A) neutrons,quarks,and muons. 
B) protons,neutrons,and electrons. 
C) muons,positons,and neutrons. 
D) electrons,quarks,and protons. 
E) positons,protons,and neutrons.

Question 12

Which of the following is NOT a property of enzymes?

Accepted Answer

A) Enzymes are catalytic proteins. 
B) Enzymes are highly specific. 
C) Enzymes are efficient. 
D) Enzymes are subject to a variety of cellular controls. 
E) Enzymes are irreversibly changed by the reactions that they catalyze. 
A) Enzymes are catalytic proteins. 
B) Enzymes are highly specific. 
C) Enzymes are efficient. 
D) Enzymes are subject to a variety of cellular controls. 
E) Enzymes are irreversibly changed by the reactions that they catalyze.

Question 13

This type of fatty acid contains more than one double bond in its hydrocarbon chain.

Accepted Answer

A) saturated 
B) monounsaturated 
C) polyunsaturated 
D) volatile 
E) short chain 
A) saturated 
B) monounsaturated 
C) polyunsaturated 
D) volatile 
E) short chain

Question 14

In the diagram which particles are negatively charged?

Accepted Answer

A) A 
B) B 
C) C 
D) All of these choices. 
E) None of these choices. 
A) A 
B) B 
C) C 
D) All of these choices. 
E) None of these choices.

Question 15

What organic compound is lacking the human digestive system that makes it unable to digest cellulose?

Accepted Answer

Human digestive system lacks t

Question 16

In the diagram,what would happen to the concentration of C if the concentration of A increases?

Accepted Answer

A) increases 
B) decreases 
C) no change 
A) increases 
B) decreases 
C) no change

Question 17

Describe the law of conservation of energy.

Accepted Answer

Energy cannot be cre

Question 18

Which of the following subatomic particles are shared by two atoms to form covalent bonds?
1)neutron
2)electron
3)proton

Accepted Answer

A) 1 only 
B) 2 only 
C) 3 only 
D) 2 & 3 only 
E) 1,2 & 3 
A) 1 only 
B) 2 only 
C) 3 only 
D) 2 & 3 only 
E) 1,2 & 3

Question 19

A radioactive isotope of sulfur would be trackable in.

Accepted Answer

A) cysteine 
B) fatty acid chain 
C) glucose 
D) glycine 
E) nucleotide 
A) cysteine 
B) fatty acid chain 
C) glucose 
D) glycine 
E) nucleotide

Question 20

The number of protons in an atom is represented by an element's

Accepted Answer

A) mass number. 
B) atomic number. 
C) atomic mass. 
D) valence number. 
E) None of these choices. 
A) mass number. 
B) atomic number. 
C) atomic mass. 
D) valence number. 
E) None of these choices.

Exam 2: The Chemical Level of Organization

Briefly describe the octet rule.

This lipid is used by the body as a precursor for the production of steroid hormones.

A solute that readily dissolves in water is

Which of the following is a monosaccharide that is used by cells to produce energy?

Which type of chemical bond involves the sharing of valence electron pairs between two atoms?

What is the name given to a negatively charged atom?

This type of protein protects against pathogens.

Which relatively weak type of bond helps stabilize the three dimensional structure of large molecules like proteins and DNA?

What type of molecule is shown in the diagram? Where in a human body cell would this type of molecule be commonly found? What special chemical properties does this molecule possess that allows it to accomplish its functions?

Which of the following describes the major significance of the element chlorine in the human body?

The three types of subatomic particles that are important for understanding chemical reactions in the human body are

Which of the following is NOT a property of enzymes?

This type of fatty acid contains more than one double bond in its hydrocarbon chain.

In the diagram which particles are negatively charged?

What organic compound is lacking the human digestive system that makes it unable to digest cellulose?

In the diagram,what would happen to the concentration of C if the concentration of A increases?

Describe the law of conservation of energy.

Which of the following subatomic particles are shared by two atoms to form covalent bonds? 1)neutron 2)electron 3)proton

A radioactive isotope of sulfur would be trackable in.

The number of protons in an atom is represented by an element's

An Introduction to the Human Body

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

The Skeletal System: Bone Tissue

The Skeletal System: the Axial Skeleton

The Skeletal System: The Appendicular Skeleton

Joints

Muscular Tissue

The Muscular System

Nervous Tissue

The Spinal Cord and Spinal Nerves

The Brain and Cranial Nerves

The Autonomic Nervous System

Sensory, Motor, and Integrative Systems

The Special Senses

The Endocrine System

The Cardiovascular System: the Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels and Hemodynamics

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Nutrition

The Urinary System

Fluid, Electrolyte, and Acidbase Homeostasis

The Reproductive Systems

Development and Inheritance

Filters