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Biology 101Test vg vg
Bank
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Water and Life
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1. In a single molecule of water, two hydrogen atoms
vg vg vg vg vg vg vg vg
vgarebonded to a single oxygen atom by? vg vg vg vg vg vg
A. hydrogen bonds. vg
B. nonpolar covalent bonds. vg vg
C. polar covalent bonds. vg vg
D. ionic bonds. vg
E. van der Waals interactions.
vg vg vg
2. In a group of water molecules, hydrogen bonds
vg vg vg vg vg vg vg
vgformbetween?
A. the oxygen atoms in different water molecules
vg vg vg vg vg vg
B. Two hydrogen atoms in different water molecules
vg vg vg vg vg vg
C. the oxygen atom in one water molecule and
vg vg vg vg vg vg vg
ahydrogen atom in another water molecule
vg vg vg vg vg vg
D. the hydrogen atoms in a single water molecule
vg vg vg vg vg vg vg
E. None of the listed responses is Correct
vg vg vg vg vg vg
3. Life on Earth is dependent on all the properties of
vg vg vg vg vg vg vg vg vg
vgwatertas well as the abundance of water. Which
vg vg vg vg vg vg vg
vgproperty of water is probably most important for the
vg vg vg vg vg vg vg vg
vgfunctioning of organisms at the molecular level? vg vg vg vg vg vg
A. high specific heatvg vg
B. cohesion and high surface tension vg vg vg vg
C. versatility as a solvent vg vg vg
D. expansion upon freezing vg vg
E. high heat of vaporization
vg vg vg
4. Some substances, such as oil and gasoline, will
vg vg vg vg vg vg vg
vgnottdissolve in water because? vg vg vg
A. oil and gasoline are organic compounds,
vg vg vg vg vg
B. their molecules have no charges or partial charges
vg vg vg vg vg vg vg
towhich water molecules can adhere
vg vg vg vg vg
C. their electrons are so stable that they do not
vg vg vg vg vg vg vg vg
exchangeatoms with water molecules
vg vg vg vg
D. they do not ionizevg vg vg
E. their molecules are so large
vg vg vg vg
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Material
5. The partial charges on a water molecule occur
vg vg vg vg vg vg vg
vgbecauseof?
A. widespread ionization vg
B. the unequal sharing of electrons between the
vg vg vg vg vg vg
vghydrogen and the oxygen atoms of a water vg vg vg vg vg vg vg
vgmolecule
C. the high electronegativity of hydrogen
vg vg vg vg
D. covalent bonding vg
E. the achievement of a stable configuration by one atom of
vg vg vg vg vg vg vg vg vg
vgabond but not by the other partner
vg vg vg vg vg vg
6. Water molecules have
vg than molecules of vg vg vg
vgsimilartsize, such as ammonia and methane, vg vg vg vg vg
vgreflecting its capacity to absorb large amounts of
vg vg vg vg vg vg vg
vgheat.
A. less surface tensionvg vg
B. a higher boiling point
vg v g vg
C. a lower capacity for forming
vg vg vg vg
D. lower specific heat hydrogen bonds
vg vg vg vg
E. a lower melting point
vg vg vg
7. Most of water's unique features (for example, its
vg vg vg vg vg vg vg
vgversatility as a solvent, ability to moderate
vg vg vg vg vg vg
vgtemperature,and cohesive behavior) result from vg vg vg vg
vgthe fact that?
vg vg
A. hydrogen is the only element without any neutrons.
vg vg vg vg vg vg vg
B. oxygen attracts electrons more than hydrogen does.
vg vg vg vg vg vg
C. oxygen has only one stable isotope, but hydrogen
vg vg vg vg vg vg vg
vghasthree.
D. oxygen has two unfilled electron shells.
vg vg vg vg vg
E. More than one of the above is Correct.
vg vg vg vg vg vg vg
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vg vg
vg $1.236
vg
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vg vg vg vg vg vg vg vg vg
Material
8. The slight negative charge at one end of one water
vg vg vg vg vg vg vg vg vg
vgmolecule is attracted to the slight positive charge of
vg vg vg vg vg vg vg vg
vganother water molecule. What is this attraction
vg vg vg vg vg vg
vgcalled?
A. a covalent bond
vg vg
B. a hydrogen bond
vg vg
C. an ionic bond
vg vg
D. a hydrophilic bond
vg vg
E. a van der Waals interaction
vg vg vg vg
9. Sulfur is in the same column of the periodic table
vg vg vg vg vg vg vg vg vg
vgasoxygen, but has electronegativity similar tovg vg vg vg vg
vgcarbon. Compared to water molecules,
vg vg vg vg
vgmolecules of H2S? vg vg
A. will ionize more readily.
vg vg vg
B. will have greater cohesion to other molecules of H2S.
vg vg vg vg vg vg vg vg
C. will have a greater tendency to form hydrogen bonds
vg vg vg vg vg vg vg vg
vgwitheach other. vg
D. will have a higher capacity to absorb heat for the
vg vg vg vg vg vg vg vg vg
vgsamechange in temperature. vg vg
E. will not form hydrogen bonds with each other.
vg vg vg vg vg vg vg
10. Water molecules are able to form hydrogen bonds with?
vg vg vg vg vg vg vg vg
A. compounds that have polar covalent bonds. vg vg vg vg vg
B. oils.
C. oxygen gas (O2. molecules. vg vg vg
D. chloride ions. vg
E. any compound that is not soluble in water.
vg vg vg vg vg vg vg
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vg vg
vg $1.236
vg
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vg vg vg vg vg vg vg vg vg
Material
Biology 101Test vg vg
Bank
vg
Water and Life
vg vg
Downloaded by: Bookista |
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vg vg
vg $1.236
vg
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vg vg vg vg vg vg vg vg vg
Material
1. In a single molecule of water, two hydrogen atoms
vg vg vg vg vg vg vg vg
vgarebonded to a single oxygen atom by? vg vg vg vg vg vg
A. hydrogen bonds. vg
B. nonpolar covalent bonds. vg vg
C. polar covalent bonds. vg vg
D. ionic bonds. vg
E. van der Waals interactions.
vg vg vg
2. In a group of water molecules, hydrogen bonds
vg vg vg vg vg vg vg
vgformbetween?
A. the oxygen atoms in different water molecules
vg vg vg vg vg vg
B. Two hydrogen atoms in different water molecules
vg vg vg vg vg vg
C. the oxygen atom in one water molecule and
vg vg vg vg vg vg vg
ahydrogen atom in another water molecule
vg vg vg vg vg vg
D. the hydrogen atoms in a single water molecule
vg vg vg vg vg vg vg
E. None of the listed responses is Correct
vg vg vg vg vg vg
3. Life on Earth is dependent on all the properties of
vg vg vg vg vg vg vg vg vg
vgwatertas well as the abundance of water. Which
vg vg vg vg vg vg vg
vgproperty of water is probably most important for the
vg vg vg vg vg vg vg vg
vgfunctioning of organisms at the molecular level? vg vg vg vg vg vg
A. high specific heatvg vg
B. cohesion and high surface tension vg vg vg vg
C. versatility as a solvent vg vg vg
D. expansion upon freezing vg vg
E. high heat of vaporization
vg vg vg
4. Some substances, such as oil and gasoline, will
vg vg vg vg vg vg vg
vgnottdissolve in water because? vg vg vg
A. oil and gasoline are organic compounds,
vg vg vg vg vg
B. their molecules have no charges or partial charges
vg vg vg vg vg vg vg
towhich water molecules can adhere
vg vg vg vg vg
C. their electrons are so stable that they do not
vg vg vg vg vg vg vg vg
exchangeatoms with water molecules
vg vg vg vg
D. they do not ionizevg vg vg
E. their molecules are so large
vg vg vg vg
7
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vg vg
vg $1.236
vg
Distribution of this document is illegal extra per year?
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vg vg vg vg vg vg vg vg vg
Material
5. The partial charges on a water molecule occur
vg vg vg vg vg vg vg
vgbecauseof?
A. widespread ionization vg
B. the unequal sharing of electrons between the
vg vg vg vg vg vg
vghydrogen and the oxygen atoms of a water vg vg vg vg vg vg vg
vgmolecule
C. the high electronegativity of hydrogen
vg vg vg vg
D. covalent bonding vg
E. the achievement of a stable configuration by one atom of
vg vg vg vg vg vg vg vg vg
vgabond but not by the other partner
vg vg vg vg vg vg
6. Water molecules have
vg than molecules of vg vg vg
vgsimilartsize, such as ammonia and methane, vg vg vg vg vg
vgreflecting its capacity to absorb large amounts of
vg vg vg vg vg vg vg
vgheat.
A. less surface tensionvg vg
B. a higher boiling point
vg v g vg
C. a lower capacity for forming
vg vg vg vg
D. lower specific heat hydrogen bonds
vg vg vg vg
E. a lower melting point
vg vg vg
7. Most of water's unique features (for example, its
vg vg vg vg vg vg vg
vgversatility as a solvent, ability to moderate
vg vg vg vg vg vg
vgtemperature,and cohesive behavior) result from vg vg vg vg
vgthe fact that?
vg vg
A. hydrogen is the only element without any neutrons.
vg vg vg vg vg vg vg
B. oxygen attracts electrons more than hydrogen does.
vg vg vg vg vg vg
C. oxygen has only one stable isotope, but hydrogen
vg vg vg vg vg vg vg
vghasthree.
D. oxygen has two unfilled electron shells.
vg vg vg vg vg
E. More than one of the above is Correct.
vg vg vg vg vg vg vg
8
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vg vg
vg $1.236
vg
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vg vg vg vg vg vg vg vg vg
Material
8. The slight negative charge at one end of one water
vg vg vg vg vg vg vg vg vg
vgmolecule is attracted to the slight positive charge of
vg vg vg vg vg vg vg vg
vganother water molecule. What is this attraction
vg vg vg vg vg vg
vgcalled?
A. a covalent bond
vg vg
B. a hydrogen bond
vg vg
C. an ionic bond
vg vg
D. a hydrophilic bond
vg vg
E. a van der Waals interaction
vg vg vg vg
9. Sulfur is in the same column of the periodic table
vg vg vg vg vg vg vg vg vg
vgasoxygen, but has electronegativity similar tovg vg vg vg vg
vgcarbon. Compared to water molecules,
vg vg vg vg
vgmolecules of H2S? vg vg
A. will ionize more readily.
vg vg vg
B. will have greater cohesion to other molecules of H2S.
vg vg vg vg vg vg vg vg
C. will have a greater tendency to form hydrogen bonds
vg vg vg vg vg vg vg vg
vgwitheach other. vg
D. will have a higher capacity to absorb heat for the
vg vg vg vg vg vg vg vg vg
vgsamechange in temperature. vg vg
E. will not form hydrogen bonds with each other.
vg vg vg vg vg vg vg
10. Water molecules are able to form hydrogen bonds with?
vg vg vg vg vg vg vg vg
A. compounds that have polar covalent bonds. vg vg vg vg vg
B. oils.
C. oxygen gas (O2. molecules. vg vg vg
D. chloride ions. vg
E. any compound that is not soluble in water.
vg vg vg vg vg vg vg
9
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vg vg
vg $1.236
vg
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