A) chloride ion
B) dissociation
C) water molecule
D) sodium ion
E) salt crystal
G) A) and D)
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A) protons.
B) electrons.
C) neutrons.
D) neutrinos.
E) photons.
G) A) and B)
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A) molecule.
B) compound.
C) molecule and a compound.
D) element.
E) ion.
G) A) and C)
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A) cool the body with sweat.
B) maintain a fairly constant body temperature.
C) provide an environment for chemical reactions.
D) keep tissues moist and reduce friction.
E) All of these choices are correct.
G) A) and C)
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A) are the body's source of immediate energy.
B) are the building blocks of nucleotides.
C) provide much of the structure of body cells and tissues.
D) contain the genetic information of the cell.
E) insulate and cushion the body.
G) A) and E)
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A) storage carbohydrate in animals.
B) storage carbohydrate in plants.
C) nondigestible plant polysaccharide.
D) major nutrient for most body cells.
E) sugar found in RNA and ATP.
G) A) and D)
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A) chloride ion
B) dissociation
C) water molecule
D) sodium ion
E) salt crystal
G) A) and C)
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A) It can dissolve many chemical compounds.
B) It can absorb and release heat without changing temperature very much.
C) It has a high surface tension.
D) Its bonds are nonpolar.
E) It is a solute.
G) None of the above
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A) a combination of atoms held together by chemical bonds.
B) a positively charged ion.
C) a negatively charged ion.
D) a molecule that conducts electricity when placed in solution.
E) an alteration in the three-dimensional structure of a protein.
G) B) and E)
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A) Two amino acids are bonded together to form a dipeptide.
B) Sucrose is chemically separated to form one molecule of glucose and one molecule of fructose.
C) Sodium chloride is dissolved in water.
D) Several dipeptide chains are formed from digestion of a long polypeptide chain.
E) ATP is converted to ADP.
G) A) and B)
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A) carbon, hydrogen, oxygen, and iron.
B) carbon, hydrogen, oxygen, and nitrogen.
C) calcium, hydrogen, sodium, and potassium.
D) carbon, oxygen, magnesium, and zinc.
E) carbon, sulfur, calcium, and potassium.
G) D) and E)
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A) phosphorus
B) oxygen
C) nitrogen
D) polar (hydrophilic) region
E) nonpolar (hydrophobic) region
G) C) and E)
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A) contain subunits called amino acids.
B) are water-soluble.
C) are a type of steroid.
D) are fat-soluble vitamins.
E) are found in cell membranes.
G) A) and B)
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A) form dissociated ions.
B) are electrostatic attractions between different molecules.
C) evenly distribute electrical charge among all atoms in a sample.
D) separate atoms and ions from one another.
E) are found within molecules.
G) A) and E)
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A) 7.35 - 8.5.
B) 7.35 - 7.45.
C) 4.5 - 5.5.
D) 1.0 - 14.0.
E) 6.5 - 9.5.
G) A) and D)
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A) disaccharide
B) sucrose
C) lactose
D) maltose
E) glucose
G) C) and E)
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A) cling tightly together.
B) dissociate or separate from one another.
C) lose their charge.
D) get lost in the solvent.
E) settle to the bottom of the container.
G) B) and C)
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A) adenine
B) guanine
C) thymine
D) uracil
E) cytosine
G) C) and D)
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