Question Details

1.	A nucleotide is composed of the following molecules arranged in this order:
a.    three amino acids covalently bonded in a series.
b.    three fatty acids individually bonded to three different places on glycerol.
c.    a base bonded to a sugar bonded to a phosphate.
d.    mRNA bonded to tRNA bonded to an amino acid.
Hint: Section 3.4
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1N:Explain how atoms stick together to form compounds.
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2.	All of the chemical reactions that take place within your body are known as:
a.    organismal structure.
b.    metabolism.
c.    irritability.
d.    adaptation.
Hint: Section 1.4
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1L:Explain the difference between reactants and products.
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3.	The correct symbol for a hydroxide ion is:
a.   H-.
b.   H+.
c.   (OH)-.
d.   (OH)+.
Hint: Section 2.9
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1N:Explain how atoms stick together to form compounds.
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4.	Which of the following is glycerol?
a.   C3H5(OH)3
b.   C6H12O6
c.   C14H28O
d.   C2H5O2N
Hint: Section 3.5
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1K:Identify compounds that are acids, bases, or salts.
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5.	The bonding of four simple sugars will:
a.    produce three water molecules.
b.    produce four water molecules.
c.    utilize three water molecules.
d.    utilize four water molecules.
Hint: Section 3.2
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1S:Describe how single and double covalent bonds are formed in organic molecules.
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6.	CH3-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-COOH is a(n):
a.    fatty acid.
b.    amino acid.
c.    glycerol.
d.    steroid.
Hint: Section 3.1
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1K:Identify compounds that are acids, bases, or salts.
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7.	Which kind of attractive force holds two molecules together?
a.    Ionic bond
b.    Hydrogen bond
c.    Covalent bond
d.    Sticky bond
Hint: Section 2.6
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1J:Contrast chemical bonds and hydrogen bonds.
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8.	A covalent bond is:
a.    the attraction that one atom has for another atom.
b.    the attraction between two atoms, formed by the sharing of electrons.
c.    formed between the positive charge of a hydrogen atom in one molecule and the negative 
       charge of a nitrogen atom in another nearby molecule.
d.    the attraction between a positive ion and a negative ion.
Hint: Section 2.6
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1S:Describe how single and double covalent bonds are formed in organic molecules.
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9.	Which of the following shows the correct linkage of amino acids in a protein?
a.    Amino group of one bonded to the amino group of the next
b.    Acid group of one bonded to acid group of the next
c.    Acid group of one bonded to amino group of the next
d.    All of the choices apply
Hint: Section 3.3
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1K:Identify compounds that are acids, bases, or salts.
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10.	Which of the following is a function of proteins?
a.    Contain information for the cell
b.    Serve as a subunit in the structure of fat
c.    Reduce the weight of an individual
d.    Speed up certain chemical reactions
Hint: Section 3.3
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1Q:Describe the function played by each of the major groups of organic molecules.
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11.	The empirical formula for the structural formula below is:
 
a.    COH.
b.   C4HO2.
c.   CH2O.
d.   CHO2.
Hint: Section 3.1
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1N:Explain how atoms stick together to form compounds.
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12.	Which of the following types of molecules contain the most energy per gram?
a.    Sugar
b.    Carbohydrate
c.    Saturated fat
d.    Starch
Hint: Section 3.2
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1Q:Describe the function played by each of the major groups of organic molecules.
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13.	Solutions are always comprised of:
a.    solvents and a solute.
b.    liquids and solids.
c.    water and salts.
d.    compounds and ions.
Hint: Section 2.7
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1H:Differentiate among solution, solvent, and solute.
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14.	A chemical reaction is one that:
a.    enters into a chemical reaction.
b.    is the newly formed molecule.
c.    is at a point when both sides of the equation are equal.
d.    during photosynthesis, is one molecule of sugar and six molecules of oxygen.
Hint: Section 2.8
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1L:Explain the difference between reactants and products.
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15.	A solution with a high concentration of hydrogen ions could have a pH of:
a.    2.
b.    6.
c.    9.
d.    11.
Hint: Section 2.9
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1J:Contrast chemical bonds and hydrogen bonds.
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16.	Which of the following is not a science?
a.    Economics
b.    Astronomy
c.    Engineering
d.    Biology
Hint: Section 1.3
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1C:Differentiate science from non-science.
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17.	The greatest amount of kinetic energy is found in:
a.    gases.
b.    liquids.
c.    solids.
d.    colloids.
Hint: Section 2.3 and Section 2.4
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1I:Summarize the difference between potential and kinetic energy.
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18.	6CO2 + 6H2O   C6H12O2 + 6O2. In this reaction, O2 is:
a.    a reactant.
b.    a product.
c.    a reactant and a product.
d.    neither a reactant nor a product.
Hint: Section 2.8
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1J:Contrast chemical bonds and hydrogen bonds.
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19.	If an atom has the atomic number 11 and the atomic mass 22.99, it will have:
a.    1 electron in the third energy level.
b.    1 electron in the second energy level.
c.    3 electrons in the fourth energy level.
d.    1 electron in the first energy level.
Hint: Section 2.2
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1G:Distinguish among atoms and elements; molecules, and compounds.
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20.	A hypothesis is best described as a:
a.    general principle.
b.    logical explanation that can be tested.
c.    theory.
d.    generally accepted concept.
Hint: Section 1.2
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1D:State two characteristics of a good hypothesis.
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21.	Empirical evidence is:
a.    gained from observing of an event.
b.    derived from literature.
c.    developed from conclusions.
d.    formulated from empirical rules.
Hint: Section 1.2
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1A:Describe the five elements of the scientific method.
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22.	The pleating or coiling of a protein is known as the protein's __________ structure.
a.    primary
b.    secondary
c.    tertiary
d.    quaternary
Hint: Section 3.3
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1R:Identify the main functional groups.
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23.	Although scientific fraud does occur, it is usually discovered because:
a.    scientists try to repeat the experiments of others.
b.    scientists publish their results.
c.    scientists are skeptical unless they have very strong evidence.
d.    all of these statements are true.
Hint: Section 1.2
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1C:Differentiate science from non-science.
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24.	Science is:
a.    an organized study of information.
b.    impossible to define.
c.    a process for collecting and organizing knowledge.
d.    the study of life.
Hint: Section 1.2
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1C:Differentiate science from non-science.
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25.	A substance that is a solid:
a.    contains a large amount of oxygen.
b.    contains molecules that are packed tightly together and vibrate in place.
c.    is bonded very tightly (covalent).
d.    contains a large amount of hydrogen bonds.
Hint: Section 2.5
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1M:Describe the differences among liquids, solids, and gases.
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26.	Which sequence correctly lists levels of organization from simple to more complex?
a.    Biosphere, ecosystem, community, population
b.    Atoms, cell, molecules, tissue, organism
c.    Organ system, organ, organisms, cell
d.    Cell, tissue, organ, organ system
Hint: Section 1.4
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1F:Differentiate among a cell, an organ, and an organism.
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27.	A measure of the average kinetic energy of the molecules making up a substance is known as:
a.    temperature.
b.    heat.
c.    potential.
d.    phase of matter.
Hint: Section 2.1 and Section 2.3
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1I:Summarize the difference between potential and kinetic energy.
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28.	A control group differs from an experimental group:
a.    in the number of test organisms used.
b.    by the independent variable.
c.    in several ways.
d.    in no way.
Hint: Section 1.2
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1A:Describe the five elements of the scientific method.
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29.	Which of the following is an acid?
a.    NaOH
b.    HOH
c.   H2SO4
d.    NaCl
Hint: Section 2.9
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1K:Identify compounds that are acids, bases, or salts.
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30.	Which of these molecules is typically double-stranded?
a.    mRNA
b.    rRNA
c.    tRNA
d.    DNA
Hint: Section 3.4
SLO1:Examine the scientific method and analyze the foundations of biology.
LO1N:Explain how atoms stick together to form compounds.
	
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