Question 1

When would an atom be least likely to form chemical bonds with other atoms?

Accepted Answer

A)  The number of protons equals the number of electrons. 
B)  The number of protons equals the number of neutrons. 
C)  There is only one electron in the valence shell. 
D)  The valence shell is full of electrons. 
A)  The number of protons equals the number of electrons. 
B)  The number of protons equals the number of neutrons. 
C)  There is only one electron in the valence shell. 
D)  The valence shell is full of electrons. D

Question 2

Which feature is found in both prokaryotic and eukaryotic cells?

Accepted Answer

A)  mitochondrion 
B)  Golgi body 
C)  DNA 
D)  centriole 
A)  mitochondrion 
B)  Golgi body 
C)  DNA 
D)  centriole C

Question 3

Which monomer units combine to form proteins?

Accepted Answer

A)  amino acids 
B)  fatty acids 
C)  nucleotides 
D)  sugars 
A)  amino acids 
B)  fatty acids 
C)  nucleotides 
D)  sugars A

Question 4

What are the monomer units that compose proteins? (two words)

Accepted Answer

The answer of What are the monomer units that compose...

Question 5

Which of the following is nonpolar?

Accepted Answer

A)  a positive ion 
B)  a negative ion 
C)  a neutral ion 
D)  a molecule with no partial charges 
A)  a positive ion 
B)  a negative ion 
C)  a neutral ion 
D)  a molecule with no partial charges

Question 6

-According to the diagram, which organisms are most closely related on the tree of life?

Accepted Answer

A)  amoeba and brown algae 
B)  bacteria and animals 
C)  fungi and archaea 
D)  green algae and plants 
A)  amoeba and brown algae 
B)  bacteria and animals 
C)  fungi and archaea 
D)  green algae and plants

Question 7

Which of the following is a lipid?

Accepted Answer

A)  cellulose 
B)  cholesterol 
C)  sucrose 
D)  ribonucleic acid 
A)  cellulose 
B)  cholesterol 
C)  sucrose 
D)  ribonucleic acid

Question 8

The number of which subatomic particle designates the atomic number of an element?

Accepted Answer

A)  electrons 
B)  neutrons 
C)  protons 
D)  protons plus neutrons 
A)  electrons 
B)  neutrons 
C)  protons 
D)  protons plus neutrons

Question 9

What are the smallest units into which an element can be broken down?

Accepted Answer

The answer of What are the smallest units into which...

Question 10

What is the name of a molecule composed of one or more sugars?

Accepted Answer

A)  carbohydrate 
B)  lipid 
C)  nucleic acid 
D)  polypeptide 
A)  carbohydrate 
B)  lipid 
C)  nucleic acid 
D)  polypeptide

Question 11

Which element is the basis for the macromolecules found in living things?

Accepted Answer

A)  carbon 
B)  hydrogen 
C)  nitrogen 
D)  oxygen 
A)  carbon 
B)  hydrogen 
C)  nitrogen 
D)  oxygen

Question 12

Which term best describes the water in a sugarwater solution?

Accepted Answer

A)  product 
B)  reactant 
C)  solute 
D)  solvent 
A)  product 
B)  reactant 
C)  solute 
D)  solvent

Question 13

Why might bacteria be considered more successful than humans?

Accepted Answer

A)  Humans are resistant to bacterial infections. 
B)  Bacteria have very specialized food sources. 
C)  Bacteria have been evolving for billions of years. 
D)  Bacteria are less diversified than humans. 
A)  Humans are resistant to bacterial infections. 
B)  Bacteria have very specialized food sources. 
C)  Bacteria have been evolving for billions of years. 
D)  Bacteria are less diversified than humans.

Question 14

Which monomer units combine to form nucleic acids?

Accepted Answer

A)  amino acids 
B)  fatty acids 
C)  nucleotides 
D)  sugars 
A)  amino acids 
B)  fatty acids 
C)  nucleotides 
D)  sugars

Question 15

What molecule is composed only of chains and rings of hydrogen and carbon?

Accepted Answer

A)  carbohydrate 
B)  hydrocarbon 
C)  polypeptide 
D)  polysaccharide 
A)  carbohydrate 
B)  hydrocarbon 
C)  polypeptide 
D)  polysaccharide

Question 16

What kind of bond holds two water molecules 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 17

How do the concentrations of H⁺ and OH− compare to each other in an acidic solution?

Accepted Answer

A)  The concentration of H⁺ is higher. 
B)  The concentration of H⁺ is lower. 
C)  The concentration of H⁺ is the same. 
D)  Acidic solutions do not contain H⁺. 
A)  The concentration of H⁺ is higher. 
B)  The concentration of H⁺ is lower. 
C)  The concentration of H⁺ is the same. 
D)  Acidic solutions do not contain H⁺.

Question 18

Which of the following has the lowest OH− concentration?

Accepted Answer

A)  baking soda 
B)  pure water 
C)  coffee 
D)  battery acid 
A)  baking soda 
B)  pure water 
C)  coffee 
D)  battery acid

Question 19

Which macromolecule has a sugar-phosphate backbone?

Accepted Answer

A)  lipid 
B)  nucleic acid 
C)  protein 
D)  polysaccharide 
A)  lipid 
B)  nucleic acid 
C)  protein 
D)  polysaccharide

Question 20

Which term best describes the sugar in a sugarwater solution?

Accepted Answer

A)  product 
B)  reactant 
C)  solute 
D)  solvent 
A)  product 
B)  reactant 
C)  solute 
D)  solvent

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

When would an atom be least likely to form chemical bonds with other atoms?

Which feature is found in both prokaryotic and eukaryotic cells?

Which monomer units combine to form proteins?

What are the monomer units that compose proteins? (two words)

Which of the following is nonpolar?

-According to the diagram, which organisms are most closely related on the tree of life?

Which of the following is a lipid?

The number of which subatomic particle designates the atomic number of an element?

What are the smallest units into which an element can be broken down?

What is the name of a molecule composed of one or more sugars?

Which element is the basis for the macromolecules found in living things?

Which term best describes the water in a sugarwater solution?

Why might bacteria be considered more successful than humans?

Which monomer units combine to form nucleic acids?

What molecule is composed only of chains and rings of hydrogen and carbon?

What kind of bond holds two water molecules to each other?

How do the concentrations of H⁺ and OH− compare to each other in an acidic solution?

Which of the following has the lowest OH− concentration?

Which macromolecule has a sugar-phosphate backbone?

Which term best describes the sugar in a sugarwater solution?

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