2. Inductive reasoning in science:
a) is often part of the discovery process
b) proceeds from specific observations to general conclusions
c) is complementary to deductive reasoning
d) often relies on descriptive science
e) all of the above
3. A proton is a subatomic particle with:
a) a negative charge and an atomic mass of 1
b) a negative charge and a negligible mass
c) a positive charge and an atomic mass of 1
d) no charge and an atomic mass of 1
e) no charge and a negligible mass
4. Nonpolar covalent bonds are formed when:
a) electrons are shared equally by atoms
b) electrons are shared unequally by atoms
c) electrons are transferred completely from one atom to another
d) two atoms both lose electrons
e) a negative pole of one atom is attracted to a positive pole of another atom
5. Hydrogen bonds are formed when:
a) electrons are shared equally by atoms
b) electrons are shared unequally by atoms
c) electrons are transferred completely from one atom to another
d) two atoms both lose electrons
e) a negative end of one molecule is attracted to a positive end of another molecule
6. Compared with a solution of pH = 4, a solution with pH = 6 is:
a) 2 times less acidic
b) 10 times more acidic
c) 100 times more acidic
d) 10 times less acidic
e) 100 times less acidic
7. Nucleotides are formed from:
a) 3 fatty acids and a glycerol
b) 3 monosaccharides and a glycerol
c) a fatty acid, a pentose sugar, and 1 or more phosphate groups
d) a nitrogenous base, a pentose sugar, and 1 or more phosphate groups
e) an amino acid, a pentose sugar, and 1 or more phosphate groups
8. Which nucleotide base is found in RNA, but not in DNA?
a) adenine
b) cytosine
c) guanine
d) thymine
e) uracil
9. The correct sequence for the levels in the taxonomic hierarchy is:
a) domain Γ’ΒΒ class Γ’ΒΒ order Γ’ΒΒ kingdom Γ’ΒΒ phylum Γ’ΒΒ genus Γ’ΒΒ family Γ’ΒΒ species
b) kingdom Γ’ΒΒ domain Γ’ΒΒ class Γ’ΒΒ phylum Γ’ΒΒ order Γ’ΒΒ family Γ’ΒΒ genus Γ’ΒΒ species
c) domain Γ’ΒΒ kingdom Γ’ΒΒ phylum Γ’ΒΒ class Γ’ΒΒ order Γ’ΒΒ family Γ’ΒΒ genus Γ’ΒΒ species
d) domain Γ’ΒΒ kingdom Γ’ΒΒ phylum Γ’ΒΒ class Γ’ΒΒ order Γ’ΒΒ genus Γ’ΒΒ family Γ’ΒΒ species
e) phylum Γ’ΒΒ kingdom Γ’ΒΒ domain Γ’ΒΒ order Γ’ΒΒ class Γ’ΒΒ genus Γ’ΒΒ family Γ’ΒΒ species
10. The outer (valence) shell of an atom can hold a maximum of:
a) 4 electrons
b) 6 electrons
c) 8 electrons
d) 12 electrons
e) 18 electrons
11. Which of the following is not true of lipids?
a) they are a diverse group of biological molecules
b) they are hydrophobic
c) they are less oxidized than carbohydrates
d) they are strongly polar
e) they can store more energy than carbohydrates
