Question 1

Figure 2.2
Using Figure 2.2, match the following:
-Hydrogen bonds.

Accepted Answer

A) A 
B) D 
C) B 
D) E 
E) C 
A) A 
B) D 
C) B 
D) E 
E) C

Question 2

What is the major difference between polar and nonpolar covalent bonds?

Accepted Answer

Polar bonds have an unequal sharing of e

Question 3

What does CH4 mean?

Accepted Answer

A)  This is an inorganic molecule. 
B)  This was involved in a redox reaction. 
C)  There is one carbon and four hydrogen atoms. 
D)  There are four carbon and four hydrogen atoms. 
A)  This is an inorganic molecule. 
B)  This was involved in a redox reaction. 
C)  There is one carbon and four hydrogen atoms. 
D)  There are four carbon and four hydrogen atoms.

Question 4

Although his cholesterol levels were not high,Mr.Martinez read that cholesterol was bad for his health,so he eliminated all foods and food products containing this molecule.He later found that his cholesterol level dropped only 20%.Why did it not drop more?

Accepted Answer

Cholesterol is produ

Question 5

Which of the following is a general function for a fibrous protein?

Accepted Answer

A)  protein management 
B)  transport 
C)  structural framework 
D)  body defense 
E)  catalysis 
A)  protein management 
B)  transport 
C)  structural framework 
D)  body defense 
E)  catalysis

Question 6

When frying an egg,the protein albumin denatures and maintains only its ________ structure.

Accepted Answer

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

Question 7

What structural level is represented by the coiling of the protein chain backbone into an alpha helix?

Accepted Answer

A)  tertiary structure 
B)  secondary structure 
C)  primary structure 
D)  quaternary structure 
A)  tertiary structure 
B)  secondary structure 
C)  primary structure 
D)  quaternary structure

Question 8

Which of the following statements is FALSE?

Accepted Answer

A)  Chemical reactions progress at a faster rate when the reacting particles are present in higher numbers. 
B)  Catalysts increase the rate of chemical reactions, sometimes while undergoing reversible changes in shape. 
C)  Larger particles move faster than smaller ones and thus collide more frequently and more forcefully. 
D)  Chemical reactions proceed more quickly at higher temperatures. 
A)  Chemical reactions progress at a faster rate when the reacting particles are present in higher numbers. 
B)  Catalysts increase the rate of chemical reactions, sometimes while undergoing reversible changes in shape. 
C)  Larger particles move faster than smaller ones and thus collide more frequently and more forcefully. 
D)  Chemical reactions proceed more quickly at higher temperatures.

Question 9

________ is fat soluble,produced in the skin on exposure to UV radiation,and necessary for normal bone growth and function.

Accepted Answer

A)  Cortisol 
B)  Vitamin K 
C)  Vitamin A 
D)  Vitamin D 
A)  Cortisol 
B)  Vitamin K 
C)  Vitamin A 
D)  Vitamin D

Question 10

How many phosphates would AMP have attached to it?

Accepted Answer

A)  three 
B)  two 
C)  one 
D)  none 
A)  three 
B)  two 
C)  one 
D)  none

Question 11

Match the following:
-Legs moving the pedals of a bicycle.

Accepted Answer

A) Mechanical energy 
B) Chemical energy 
C) Electrical energy 
D) Radiant energy 
A) Mechanical energy 
B) Chemical energy 
C) Electrical energy 
D) Radiant energy

Question 12

Triglycerides are a poor source of stored energy.

Accepted Answer

A) True 
 B)False

Question 13

Why is it possible for us to drink a solution that contains a mixture of equal concentration of a strong acid and a strong base,either of which,separately,would be very caustic?

Accepted Answer

When an acid and base of equal

Question 14

Sucrose is a ________.

Accepted Answer

A)  disaccharide 
B)  polysaccharide 
C)  triglyceride 
D)  monosaccharide 
A)  disaccharide 
B)  polysaccharide 
C)  triglyceride 
D)  monosaccharide

Question 15

Figure 2.1
Using Figure 2.1, match the following:
-Lipid.

Accepted Answer

A) C 
B) B 
C) E 
D) D 
E) A 
A) C 
B) B 
C) E 
D) D 
E) A

Question 16

Which of the following does NOT describe uses for the ATP molecule?

Accepted Answer

A)  pigment structure 
B)  mechanical work 
C)  transport across membranes 
D)  chemical work 
A)  pigment structure 
B)  mechanical work 
C)  transport across membranes 
D)  chemical work

Question 17

Are all chemical reactions reversible? If not,why aren't they all reversible?

Accepted Answer

All chemical reactions are the

Question 18

Lithium has an atomic number of 3.How many electrons are there in the outermost (valence)shell?

Accepted Answer

A)  one 
B)  two 
C)  zero 
D)  three 
A)  one 
B)  two 
C)  zero 
D)  three

Question 19

Carbohydrates are stored in the liver and skeletal muscles in the form of ________.

Accepted Answer

A)  triglycerides 
B)  glycogen 
C)  glucose 
D)  cholesterol 
A)  triglycerides 
B)  glycogen 
C)  glucose 
D)  cholesterol

Question 20

What does the formula C6H12O6 mean?

Accepted Answer

A)  The substance is a colloid. 
B)  There are 6 calcium, 12 hydrogen, and 6 oxygen atoms. 
C)  The molecular weight is 24. 
D)  There are, 6 carbon, 12 hydrogen, and 6 oxygen atoms. 
A)  The substance is a colloid. 
B)  There are 6 calcium, 12 hydrogen, and 6 oxygen atoms. 
C)  The molecular weight is 24. 
D)  There are, 6 carbon, 12 hydrogen, and 6 oxygen atoms.

Exam 2: Chemistry Comes Alive

Figure 2.2 Using Figure 2.2, match the following: -Hydrogen bonds.

What is the major difference between polar and nonpolar covalent bonds?

What does CH4 mean?

Although his cholesterol levels were not high,Mr.Martinez read that cholesterol was bad for his health,so he eliminated all foods and food products containing this molecule.He later found that his cholesterol level dropped only 20%.Why did it not drop more?

Which of the following is a general function for a fibrous protein?

When frying an egg,the protein albumin denatures and maintains only its ________ structure.

What structural level is represented by the coiling of the protein chain backbone into an alpha helix?

Which of the following statements is FALSE?

________ is fat soluble,produced in the skin on exposure to UV radiation,and necessary for normal bone growth and function.

How many phosphates would AMP have attached to it?

Match the following: -Legs moving the pedals of a bicycle.

Triglycerides are a poor source of stored energy.

Why is it possible for us to drink a solution that contains a mixture of equal concentration of a strong acid and a strong base,either of which,separately,would be very caustic?

Sucrose is a ________.

Figure 2.1 Using Figure 2.1, match the following: -Lipid.

Which of the following does NOT describe uses for the ATP molecule?

Are all chemical reactions reversible? If not,why aren't they all reversible?

Lithium has an atomic number of 3.How many electrons are there in the outermost (valence)shell?

Carbohydrates are stored in the liver and skeletal muscles in the form of ________.

What does the formula C6H12O6 mean?

The Human Body: an Orientation

Cells: the Living Units

Tissue: the Living Fabric

The Integumentary System

Bones and Skeletal Tissue

The Skeleton

Joints

Muscles and Muscle Tissue

The Muscular System

Fundamentals of the Nervous System and Nervous Tissue

The Central Nervous System

The Peripheral Nervous System and Reflex Activity

The Autonomic Nervous System

The Special Senses

The Endocrine System

Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels

The Lymphatic System and Lymphoid Organs and Tissues

The Immune System: Innate and Adaptive Body Defenses

The Respiratory System

The Digestive System

Nutrition,metabolism,and Body Temperature Regulation

The Urinary System

Fluid,electrolyte,and Acid-Base Balance

The Reproductive System

Pregnancy and Human Development

Heredity

Filters

What does CH₄ mean?