Question 1

Which characteristic necessary for life would exclude zombies from being a living thing?

Accepted Answer

A)  consumption of energy-containing molecules 
B)  fully functioning homeostatic abilities 
C)  reproduction of more zombies 
D)  response to external stimuli 
A)  consumption of energy-containing molecules 
B)  fully functioning homeostatic abilities 
C)  reproduction of more zombies 
D)  response to external stimuli

Question 2

How does the diameter of a prokaryotic cell compare to the diameter of a eukaryotic cell?

Accepted Answer

A)  Prokaryotes have twice the diameter of a eukaryote. 
B)  Prokaryotes have one-half the diameter of a eukaryote. 
C)  Prokaryotes have one-tenth the diameter of a eukaryote. 
D)  Prokaryotes have one-thousandth the diameter of a eukaryote. 
A)  Prokaryotes have twice the diameter of a eukaryote. 
B)  Prokaryotes have one-half the diameter of a eukaryote. 
C)  Prokaryotes have one-tenth the diameter of a eukaryote. 
D)  Prokaryotes have one-thousandth the diameter of a eukaryote.

Question 3

What is the ability of living things to maintain a relatively constant internal environment even when the external environment is changing?

Accepted Answer

The answer of What is the ability of living things...

Question 4

What is the name for the ability of living things to maintain a relatively constant internal environment?

Accepted Answer

A)  cellular respiration 
B)  homeostasis 
C)  metabolism 
D)  stimulus-response 
A)  cellular respiration 
B)  homeostasis 
C)  metabolism 
D)  stimulus-response

Question 5

Why is the cohesion of water important for biological systems?

Accepted Answer

A)  It helps to moderate the temperature of cold-blooded animals. 
B)  It helps transport water from the roots to the leaves of a plant. 
C)  It prevents chemical reactions from occurring in body systems. 
D)  It prevents salts from dissolving inside the plasma membrane. 
A)  It helps to moderate the temperature of cold-blooded animals. 
B)  It helps transport water from the roots to the leaves of a plant. 
C)  It prevents chemical reactions from occurring in body systems. 
D)  It prevents salts from dissolving inside the plasma membrane.

Question 6

Sodium chloride is composed of molecules that are stable when dry. In the presence of water, however, the atoms of the molecules separate from each other. What type of chemical bond holds the dry substance together?

Accepted Answer

A)  hydrogen bonds 
B)  ionic bonds 
C)  nonpolar covalent bonds 
D)  polar covalent bonds 
A)  hydrogen bonds 
B)  ionic bonds 
C)  nonpolar covalent bonds 
D)  polar covalent bonds

Question 7

Which of the following could accept one (and only one) electron?

Accepted Answer

A)  carbon (atomic number = 6) 
B)  nitrogen (atomic number = 7) 
C)  oxygen (atomic number = 8) 
D)  hydrogen (atomic number = 1) 
A)  carbon (atomic number = 6) 
B)  nitrogen (atomic number = 7) 
C)  oxygen (atomic number = 8) 
D)  hydrogen (atomic number = 1)

Question 8

What type of electric charge do protons carry?

Accepted Answer

A)  negative 
B)  positive 
C)  neutral 
D)  no charge 
A)  negative 
B)  positive 
C)  neutral 
D)  no charge

Question 9

What type of chemical bond connects the complementary strands of a DNA molecule to each other?

Accepted Answer

A)  hydrogen bonds 
B)  ionic bonds 
C)  nonpolar covalent bonds 
D)  polar covalent bonds 
A)  hydrogen bonds 
B)  ionic bonds 
C)  nonpolar covalent bonds 
D)  polar covalent bonds

Question 10

Which chemical condition describes the electrons in a water molecule being shared unequally between the hydrogen and oxygen atoms?

Accepted Answer

A)  hydrophobic 
B)  ionic 
C)  noncovalent 
D)  polar 
A)  hydrophobic 
B)  ionic 
C)  noncovalent 
D)  polar

Question 11

What kind of bond is found between the individual atoms of a single water molecule?

Accepted Answer

A)  hydrogen bonds 
B)  ionic bonds 
C)  covalent bonds that are not polar 
D)  covalent bonds that are polar 
A)  hydrogen bonds 
B)  ionic bonds 
C)  covalent bonds that are not polar 
D)  covalent bonds that are polar

Question 12

Which of the following is an element?

Accepted Answer

A)  water 
B)  methane 
C)  hydrogen 
D)  carbon dioxide 
A)  water 
B)  methane 
C)  hydrogen 
D)  carbon dioxide

Question 13

Which component of amino acids accounts for the differences in their properties?

Accepted Answer

A)  the amino group 
B)  the carboxyl group 
C)  the side group 
D)  the type of bonds 
A)  the amino group 
B)  the carboxyl group 
C)  the side group 
D)  the type of bonds

Question 14

What does "hydrophobic" mean?

Accepted Answer

A)  made of water 
B)  repelled by water 
C)  attracted to water 
D)  dissolved in water 
A)  made of water 
B)  repelled by water 
C)  attracted to water 
D)  dissolved in water

Question 15

Which of the following are found in the nucleus of an atom?

Accepted Answer

A)  electrons and neutrons 
B)  neutrons and protons 
C)  protons and electrons 
D)  neutrons, electrons, and protons 
A)  electrons and neutrons 
B)  neutrons and protons 
C)  protons and electrons 
D)  neutrons, electrons, and protons

Question 16

According to the theory of evolution, what characteristics do all living organisms share suggesting that all life-forms on Earth arose from a single ancestor?

Accepted Answer

A)  They share a common organic chemistry. 
B)  They have DNA within their nucleus. 
C)  They exhibit the same basic cell wall. 
D)  They perform the same mode of reproduction. 
A)  They share a common organic chemistry. 
B)  They have DNA within their nucleus. 
C)  They exhibit the same basic cell wall. 
D)  They perform the same mode of reproduction.

Question 17

What is the pH of a neutral solution?

Accepted Answer

A)  1 
B)  5 
C)  7 
D)  9 
A)  1 
B)  5 
C)  7 
D)  9

Question 18

What are all of the chemical processes that occur in the cells of an organism considered?

Accepted Answer

The answer of What are all of the chemical processes...

Question 19

What does a neutral pH of 7 actually represent?

Accepted Answer

A)  a greater number of H⁺ ions than OH− ions 
B)  a greater number of OH− ions than H⁺ ions 
C)  an equal number of H⁺ and OH− ions 
D)  no H⁺ and OH− ions are present 
A)  a greater number of H⁺ ions than OH− ions 
B)  a greater number of OH− ions than H⁺ ions 
C)  an equal number of H⁺ and OH− ions 
D)  no H⁺ and OH− ions are present

Question 20

What kind of molecule forms a bilayer that is the basis for all cellular membranes?

Accepted Answer

A)  carbohydrate 
B)  cholesterol 
C)  phospholipid 
D)  protein 
A)  carbohydrate 
B)  cholesterol 
C)  phospholipid 
D)  protein

Exam 2: Science Fiction, Bad Science, and Pseudoscience:

Which characteristic necessary for life would exclude zombies from being a living thing?

How does the diameter of a prokaryotic cell compare to the diameter of a eukaryotic cell?

What is the ability of living things to maintain a relatively constant internal environment even when the external environment is changing?

What is the name for the ability of living things to maintain a relatively constant internal environment?

Why is the cohesion of water important for biological systems?

Sodium chloride is composed of molecules that are stable when dry. In the presence of water, however, the atoms of the molecules separate from each other. What type of chemical bond holds the dry substance together?

Which of the following could accept one (and only one) electron?

What type of electric charge do protons carry?

What type of chemical bond connects the complementary strands of a DNA molecule to each other?

Which chemical condition describes the electrons in a water molecule being shared unequally between the hydrogen and oxygen atoms?

What kind of bond is found between the individual atoms of a single water molecule?

Which of the following is an element?

Which component of amino acids accounts for the differences in their properties?

What does "hydrophobic" mean?

Which of the following are found in the nucleus of an atom?

According to the theory of evolution, what characteristics do all living organisms share suggesting that all life-forms on Earth arose from a single ancestor?

What is the pH of a neutral solution?

What are all of the chemical processes that occur in the cells of an organism considered?

What does a neutral pH of 7 actually represent?

What kind of molecule forms a bilayer that is the basis for all cellular membranes?

Can Science Cure the Common Cold Introduction to the Scientific Method

Is It Possible to Supplement Your Way to Better Performance and Health

Body Weight and Health: Enzymes, Metabolism, and Cellular Respiration

Life in the Greenhouse: Photosynthesis and Climate Change

Cancer: DNA Synthesis, Mitosis, and Meiosis

Are You Only As Smart As Your Genes Mendelian and Quantitative Genetics

DNA Detective: Complex Patterns of Inheritance and Dna Profiling

Genetically Modified Organisms: Gene Expression, Mutation,

Where Did We Come From the Evidence for Evolution

An Evolving Enemy: Natural Selection

Who Am I Species and Races

The Greatest Species on Earth Biodiversity and Classification

Is the Human Population Too Large Population Ecology

Conserving Biodiversity: Community and Ecosystem Ecology

Where Do You Live Climate and Biomes

Organ Donation: Tissues and Organs

Binge Drinking: the Digestive and Urinary Systems

Clearing the Air: Respiratory and Cardiovascular Systems

Vaccination: Protection and Prevention or Peril Immune System,

Human Sex Differences: Endocrine, Skeletal, and Muscular Systems

Is There Something in the Water Reproductive and Developmental Biology

Study Drugs: Brain Boost or Brain Drain Brain Structure and Function

Feeding the World: Plant Structure and Growth

Growing a Green Thumb: Plant Physiology

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