Question 1

If a person is looking to eat a breakfast that will help supply them with energy for the entire course of the day, which of the following foods would they want to include?

Accepted Answer

A)  pancakes with maple syrup 
B)  bacon, eggs, and toast 
C)  cup of coffee and a donut 
D)  bowl of grapes and a glass of milk 
E)  All of these choices would provide the same potential for all day energy. 
A)  pancakes with maple syrup 
B)  bacon, eggs, and toast 
C)  cup of coffee and a donut 
D)  bowl of grapes and a glass of milk 
E)  All of these choices would provide the same potential for all day energy.

Question 2

Which of the following characteristics of water is most responsible for the sinking of the Titanic?

Accepted Answer

A)  Water is liquid at room temperature. 
B)  Water has a high heat of vaporization. 
C)  The temperature of liquid water rises and falls slowly. 
D)  Frozen water is less dense than liquid water. 
E)  Water molecules are cohesive. 
A)  Water is liquid at room temperature. 
B)  Water has a high heat of vaporization. 
C)  The temperature of liquid water rises and falls slowly. 
D)  Frozen water is less dense than liquid water. 
E)  Water molecules are cohesive.

Question 3

A species has 29% of its DNA composed of the nucleotide containing guanine (G). What percent does the nitrogen base thymine (T) equal?

Accepted Answer

A)  58% 
B)  42% 
C)  21% 
D)  67% 
E)  29% 
A)  58% 
B)  42% 
C)  21% 
D)  67% 
E)  29%

Question 4

Isotopes of an element differ due to the number of

Accepted Answer

A)  protons. 
B)  neutrons. 
C)  electrons. 
D)  both protons and electrons. 
E)  neutrinos. 
A)  protons. 
B)  neutrons. 
C)  electrons. 
D)  both protons and electrons. 
E)  neutrinos.

Question 5

Our body is capable of converting starch into glycogen.

Accepted Answer

A) True 
 B)False

Question 6

The membranes of cells are composed of

Accepted Answer

A)  phospholipids. 
B)  fats. 
C)  oils. 
D)  steroids. 
E)  triglycerides. 
A)  phospholipids. 
B)  fats. 
C)  oils. 
D)  steroids. 
E)  triglycerides.

Question 7

Radiation can produce both positive and negative effects for humans.

Accepted Answer

A) True 
 B)False

Question 8

When two amino acids combine via a dehydration reaction,

Accepted Answer

A)  a peptide bond is formed. 
B)  the R groups are lost. 
C)  water is added to begin the reaction. 
D)  the carboxyl group of each join together. 
E)  the amino group of each join together. 
A)  a peptide bond is formed. 
B)  the R groups are lost. 
C)  water is added to begin the reaction. 
D)  the carboxyl group of each join together. 
E)  the amino group of each join together.

Question 9

Which of the following is not present in a nucleotide?

Accepted Answer

A)  phosphate 
B)  nitrogenous base 
C)  5 ring sugar 
D)  an R group 
E)  a pentose 
A)  phosphate 
B)  nitrogenous base 
C)  5 ring sugar 
D)  an R group 
E)  a pentose

Question 10

The atomic number of an atom is determined by the number of

Accepted Answer

A)  protons. 
B)  neutrons. 
C)  electrons. 
D)  protons and neutrons. 
E)  protons and electrons. 
A)  protons. 
B)  neutrons. 
C)  electrons. 
D)  protons and neutrons. 
E)  protons and electrons.

Question 11

A combination of two or more atoms of the same type is called

Accepted Answer

A)  an atomic unit. 
B)  a molecule. 
C)  a compound. 
D)  an isotope. 
E)  an ion. 
A)  an atomic unit. 
B)  a molecule. 
C)  a compound. 
D)  an isotope. 
E)  an ion.

Question 12

List the properties of water.

Accepted Answer

1. Water has a high heat capac

Question 13

The sex hormones belong to which category of lipids?

Accepted Answer

A)  steroids 
B)  fats 
C)  oils 
D)  triglycerides 
E)  phospholipids 
A)  steroids 
B)  fats 
C)  oils 
D)  triglycerides 
E)  phospholipids

Question 14

Water makes up 60-70% of total body weight.

Accepted Answer

A) True 
 B)False

Question 15

Which grouping of elements is found in carbohydrates?

Accepted Answer

A)  C - H - O 
B)  C - H - P 
C)  H - O - Cl 
D)  N - S - O 
E)  Ca - H - O 
A)  C - H - O 
B)  C - H - P 
C)  H - O - Cl 
D)  N - S - O 
E)  Ca - H - O

Question 16

In an acidic solution

Accepted Answer

A)  the number of H+ is less than the number of OH-. 
B)  the number of H+ is greater than the number of OH-. 
C)  the number of H+ is equal to the number of OH-. 
D)  the number of H+ is 3 times less than the number of OH-. 
E)  the number of H+ is 10 times less than the number of OH-. 
A)  the number of H+ is less than the number of OH-. 
B)  the number of H+ is greater than the number of OH-. 
C)  the number of H+ is equal to the number of OH-. 
D)  the number of H+ is 3 times less than the number of OH-. 
E)  the number of H+ is 10 times less than the number of OH-.

Question 17

The smallest unit of an element that still retains the chemical and physical properties of that element is called

Accepted Answer

A)  an isotope. 
B)  a nucleus. 
C)  an atom. 
D)  a molecular bond. 
E)  a neutrino. 
A)  an isotope. 
B)  a nucleus. 
C)  an atom. 
D)  a molecular bond. 
E)  a neutrino.

Question 18

Fats and oils function better than other biological molecules as energy-storage molecules because of the carbon they contain.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following is not a monosaccharide?

Accepted Answer

A)  glucose 
B)  fructose 
C)  galactose 
D)  maltose 
E)  None of these are monosaccharides. 
A)  glucose 
B)  fructose 
C)  galactose 
D)  maltose 
E)  None of these are monosaccharides.

Question 20

Which type of bond is responsible for holding two water molecules together creating the properties of water?

Accepted Answer

A)  hydrogen 
B)  covalent 
C)  ionic 
D)  polar 
E)  double covalent 
A)  hydrogen 
B)  covalent 
C)  ionic 
D)  polar 
E)  double covalent

Exam 2: Chemistry of Life

If a person is looking to eat a breakfast that will help supply them with energy for the entire course of the day, which of the following foods would they want to include?

Which of the following characteristics of water is most responsible for the sinking of the Titanic?

A species has 29% of its DNA composed of the nucleotide containing guanine (G). What percent does the nitrogen base thymine (T) equal?

Isotopes of an element differ due to the number of

Our body is capable of converting starch into glycogen.

The membranes of cells are composed of

Radiation can produce both positive and negative effects for humans.

When two amino acids combine via a dehydration reaction,

Which of the following is not present in a nucleotide?

The atomic number of an atom is determined by the number of

A combination of two or more atoms of the same type is called

List the properties of water.

The sex hormones belong to which category of lipids?

Water makes up 60-70% of total body weight.

Which grouping of elements is found in carbohydrates?

In an acidic solution

The smallest unit of an element that still retains the chemical and physical properties of that element is called

Fats and oils function better than other biological molecules as energy-storage molecules because of the carbon they contain.

Which of the following is not a monosaccharide?

Which type of bond is responsible for holding two water molecules together creating the properties of water?

Exploring Life and Science

Cell Structure and Function

Organization and Regulation of Body Systems

Cardiovascular System: Heart and Blood Vessels

Cardiovascular System: Blood

The Lymphatic and Immune Systems

Digestive System and Nutrition

Respiratory System

Urinary System

Skeletal System

Muscular System

Nervous System

Senses

Endocrine System

Reproductive System

Human Development and Aging

Patterns of Chromosome Inheritance

Cancer

Patterns of Genetic Inheritance

DNA Biology and Technology

Human Evolution

Global Ecology and Human Interferences

Human Population, Planetary Resources, and Conservation

Infectious Diseases Supplement

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