Chemistry Compend- Multiple Choice Flashcards
(327 cards)
1
Q
Solutions that have the same osmotic pressure are said to be:
A
Isotonic
2
Q
Fundamental types of matter that cannot be converted into other kinds by ordinary chemical means are:
A
Elements
3
Q
Acidity or alkalinity is conveniently expressed by a scale of:
A
pH Values
4
Q
Decomposition of the human body is:
A
A Chemical Change
5
Q
Which one of the following chemicals, when contained in water in the form of salts, causes “hard water”?
- Potassium
- Calcium
- Manganese
- Sodium
A
Calcium
6
Q
What is paradichlorobenzene used for in embalming powder?
A
Mold Inhibitor
7
Q
The function of glycerol in embalming fluids is:
A
To Act as a Humectant
8
Q
Which of the following is NOT a characteristic of a jaundice fluid?
- Strong reducing agents
- Strong active dye
- High index of formaldehyde
- Low index of formaldehyde
A
High Index of Formaldehyde
9
Q
Which of the following is the result of two or more elements chemically united in a definite proportion by weight?
- A solution
- A mixture
- An element
- A compound
A
A Compound
10
Q
Paraformaldehyde is a polymer of:
A
Formaldehyde
11
Q
The atomic number of an element is equivalent to:
A
The Total Number of it’s Protons OR Electrons
12
Q
A humectant commonly used in embalming fluids is:
A
Sorbitol
13
Q
What is the electrical charge of an electron?
A
Negative
14
Q
Polymerization of formaldehyde is inhibited by the addition of:
A
Methanol
15
Q
How many classes of inorganic compounds are there?
A
Four
16
Q
The percentage by weight of formaldehyde in formalin is:
A
37%
17
Q
Which of the following solutions contains the most solute?
- Dilute
- Concentrated
- Saturated
- Supersaturated
A
Supersaturated
18
Q
The digestion of cells by means of their own enzymes is called:
A
Autolysis
19
Q
Substances that can be decomposed or separated into singular substances are:
A
Compounds
20
Q
Proteins are compounds that are:
A
Composed of many amino acids linked together.
21
Q
Two or more atoms of different elements forms:
A
Molecules
22
Q
Upon hydrolysis, proteins yield:
A
Amino Acids
23
Q
Two or more atoms of the same element form:
A
A Molecule
24
Q
Water, when used in embalming fluids, is used as a:
A
Vehicle
25
Which of the following substances is used as a buffer in arterial fluid?
* Sorbitol
* E.D.T.A.
* Heparin
* Lanolin
E.D.T.A.
26
Sodium citrate, when used in embalming fluids, functions as a/an:
Anticoagulant
27
Which of the following can be separated by physical means?
* Mixtures
* Compounds
* Bases
* Salts
Mixtures
28
If a solution is acid, its pH will be:
Below Seven
29
Which of the following statements is FALSE concerning arterial fluids?
* They are normally injected into the arterial system.
* They normally contain dye.
* They normally contain surfactants.
* They are normally injected into the body cavities.
They are Normally Injected Into the Body Cavities
30
The function of methanal in embalming fluids is:
A Preservative
31
Which of the following is NOT important in determining the shelf-life of an arterial fluid?
* The presence of buffers
* The presence of anti-polymerizaton agents
* Exposure to light
* Cost of the fluid
Cost of the Fluid
32
Adipocere is a derivative of:
Body Fats
33
Which of these is classified as a physical property of water?
* It reacts with sodium to release hydrogen
* It is an oxidizing agent
* It promotes chemical reactions
* It expands when it freezes
It Expands When it Freezes
34
Mercuric chloride is a good disinfectant. It is:
Prohibited by Law
35
Which state of matter has no definite volume and no definite shape?
Gases
36
Citrates and oxalates are usually added to embalming fluids to act as:
Anticoagulants
37
The swelling of the body during embalming is due to:
Osmosis
38
Phenol is used in embalming fluids as a:
* Dye
* Surfactant
* Vehicle
* Preservative
Preservative
39
Which of the following would NOT normally be present in a cavity fluid?
* Active dyes
* Germicides
* Preservatives
* Coagulants
Active Dyes
40
Paraformaldehyde is formaldehyde in a:
Solid State
41
In arterial fluids, glycols act as:
Humectants
42
A substance in embalming fluid which serves to retain moisture in the body is known as a:
Humectant
43
Which of the following would NOT be found in a pre-injection fluid?
* A high concentration of formaldehyde
* A low concentration of preservatives
* Water conditioning agents
* Anticoagulants
A High Concentration of Formaldehyde
44
The important vehicle for an arterial solution is:
Water
45
A charged group of atoms functioning as a single unit in a chemical reaction is:
A Polyatomic Ion
46
The number of fluid ounces of a 25 index arterial fluid needed to prepare one gallon (128 ounces) of solution with a strength of one percent would be:
5.1 Ounces
C X V = C1 X V1
C X .25 = .01 X 128
C X .25 = 1.28
C = 1.28/.25
C= 5.12
47
The class of compounds used in embalming fluids as perfuming agents is:
The Esters
48
Water of high mineral content, such as hard water, tends to:
Promote Blood Clotting
49
Sodium lauryl sulfate is used in embalming as:
A Surfactant
50
Eosine, ponceau, and erythosine are used in embalming fluids as:
Dyes
51
Of all chemical compounds, the most depended upon by plants and animals is:
Water
52
Formaldehyde in terms of embalming, is used as a:
Preservatve
53
The most abundant element in the universe is:
Hydrogen
54
Of the following, the one that is used in embalming fluids as an anticoagulant is:
* Sodium citrate
* Glycerine
* Sorbitol
* Sodium lauryl sulfate
Sodium Citrate
55
What type of embalming fluids contain high concentrations of disinfectants and preservatives but generally lack active dyes and other modifying agents?
Cavity Fluids
56
The chemical used in embalming fluids to reduce surface tension and to aid in penetration is known as a/an:
Surfactant
57
What is the function of plaster of paris in hardening compound?
Dehydration
58
Deodorants are used in embalming fluids as:
Masking Agents
59
The chemical formula of NaOH denotes which of the following compounds?
* Sodium hydroxide
* Sodium oxide
* Potassium hydroxide
* Ammonium oxide
Sodium Hydroxide
60
Of the following, the class of chemicals that are used as humectants in embalming fluids are:
* aldehydes
* phenolics
* aromatic esters
* polyhydric alcohols
Polyhydric Alcohols
61
What is methyl salicylate used for in embalming fluids?
Deodorant
62
Borax is used in embalming fluids to:
Adjust pH
63
A trihydroxy alcohol found in both embalming fluids and in the structure of lipids and fats is:
Glycerol
64
The passage of solvent through a semipermeable membrane from an area of lesser concentration to an area of higher concentration is:
Osmosis
65
What is benzaldehyde used for in embalming fluids?
Deodorant
66
Substances which will pass through the pores of animals and vegetable membranes are:
Crystalloids
67
The most common form of oxygen is:
Molecular Oxygen
68
A solution in which more solute can can be dissolved at a given temperature is:
Unsaturated
69
Which term is used as a synonymous term for polyatomic ion?
Radical
70
A positively charged particle in the nucleus of an atom is:
Proton
71
The passage of a solid substance directly into the gaseous state is:
Sublimation
72
The oxidation number for the Ammonium Radical is:
+1
73
Another name for ethanoic acid is:
Acetic Acid
74
Which of the following is not a chemical change?
* combustion
* decomposition of remains
* rusting of iron
* tearing of paper
Tearing of Paper
75
The study of matter derived from inanimate or lifeless things is:
Inorganic Chemistry
76
Oxygen occurs in the free state as:
02
77
Anything that occupies space and possesses mass is:
Matter
78
Oxygen means:
Acid Former
79
The science that deals with the nature of matter and the changes that matter undergoes is:
Chemistry
80
An abbreviation for the name of an element is:
The Atomic Symbol
81
Two or more substances that are combined together but are NOT chemically combined form:
A Mixture
82
The formula for Magnesium Chloride is:
MgCl2-
83
What is the freezing point of water?
0 Degrees Celsius
84
The most abundant element on earth is:
Oxygen
85
The total amount of formaldehyde required to preserve all of the protein in the body is:
Formaldehyde Demand
86
In use with embalming fluids, water and methyl alcohol are two examples of:
Vehicles
87
The formula R-OH is:
A General Formula
88
The main constituent of an acid is:
Hydrogen
89
Compounds which have identical molecular formulas but different structural formulas are:
Isomers
90
The splitting apart of a compound by water is called:
Hydrolysis
91
What are the sufonate compounds used for in embalming fluids?
Surface Active Agents
92
The hydrolysis of proteins yields
Amino Acids
93
Which of the following is used only as a filler in autopsy chemical mixtures?
* Perlite
* Lanolin
* Paraformaldehyde
* Paradichlorobenzene
Perlite
94
Which of the following is a physical property of matter?
* Solubility
* Specific gravity
* Density
* All of these
All of These
95
What is the study of non-carbon compounds?
Inorganic Chemistry
96
Organic chemistry is a study of:
Carbon Compounds
97
What substance is changed into adipocere by the saponification process?
Fats
98
A group of atoms functioning as a single atom in a chemical reaction.
Radical
99
Which of the following is NOT a hazardous substance used in embalming fluids?
* hydrogen hydroxide
* acetone
* methanol
* formaldehyde
Hydrogen Hydroxide
100
Chlorine is
A Halogen
101
The characteristics of a substance observed without altering the composition of it are
Physical Properties
102
The shrinking of blood cells in a hypertonic salt solution is called:
Crenation
103
Which of these describes a substance which has a definite shape and a definite volume?
Solid
104
An atom that has gained or lost electrons in a chemical reaction:
Ion
105
Which of the following is NOT a characteristic of an inorganic acid?
* The main constituent is hydrogen
* The pH is lower than 7.0
* The compounds yield hydrogen upon hydrolysis
* The main constituent is hydroxide
The Main Constituent is Hydroxide
106
The swelling and bursting of blood cells in a hypotonic salt solution is called
Hemolysis
107
Which of the following is classified as an inorganic salt?
* Hydrogen chloride
* Sodium chloride
* Sodium hydroxide
* Hydrogen sulfate
Sodium Chloride
108
An increase in oxidation number is characteristic of
Oxidation
109
When a substance readily absorbs appreciable quantities of moisture from the air.
Hygroscopic
110
What is another name for physiological chemistry?
Biochemistry
111
Which state of matter is described as having an indefinite shape and a definite volume?
Liquid
112
The measure of a liquid's resistance to flow.
Viscosity
113
A substance that is used as a buffer because it can act as either an acid or a base is considered to be
Amphoteric
114
The most complex of all carbohydrates are the
Polysaccharides
115
The temperature and pressure at which a solid turns into a liquid is
The Melting Point
116
Upon complete hydrolysis, carbohydrates yield
Monosaccharides
117
What type of change occurs when the composition of a substance is altered and a new substance is formed?
Chemical Change
118
The general formual for amines.
RNH2
119
The smallest particle of a compound that retains all of the properties of that compound.
Molecule
120
The general formula for ethers.
ROR
121
The smallest particle of an element that retains all the properties of that element.
Atom
122
The general formula for esters.
RCOOR
123
The chemical symbol for fluorine.
F
124
The general formula for organic acids.
RCOOH
125
Which of the following will pass through both a filter and a semipermeable membrane?
* A colloidal solution
* An emulsion
* A suspension
* A true solution
A True Solution
126
The general formula for ketones.
RCOR
127
Which of the following is a chemical property?
* Density
* Boiling point
* Reactivity
* Solubility
Reactivity
128
The general formula for aldehydes.
RCHO
129
What is involved in the cremation of a body?
Chemical Change
130
The general formula for alcohols.
ROH
131
The density of an object divided by the density of water.
Specific Gravity
132
Which of the following is an alkane?
* C2H2
* C2H4
* C2H5
* C2H6
C2H6
133
Which of these is the same as the freezing point of water?
* Melting point
* Boiling point
* Condensation point
* Evaporation point
Melting Point
134
The name of the compound with the formula BaSO4.
Barium Sulfate
(Remember that polyatmic ions are named as a whole (sulfate))
135
How many bonds must each carbon atom have in a stable organic molecule?
Four
136
All open chained hydrocarbons are classified as:
Aliphatic
137
The partial oxidation of wood alcohol yields:
Formaldehyde
138
Which of the following is the formula for ethanol?
* C3H7OH
* C2H5OH
* C3H6
* CH3OH
C2H5OH
139
The reactive portion of organic acids is the functional group known as:
The Carboxyl Group
140
Sugar in the bloodstream is in the form of:
Glucose
141
Which of the following names is a synonym for the compound called phenol?
* Benzoic acid
* Boric acid
* Carbonic acid
* Carbolic acid
Carbolic Acid
142
Which of these is a disaccharide?
* Glucose
* Cellulose
* Starch
* Sucrose
Sucrose
143
Theoretically, the complete reduction of the compound formaldehyde would produce:
Methane
144
Adipocere is chemically most similar to:
* A protein
* A carbohydrate
* A soap
* A Sugar
A Soap
145
What temperature is shown on a Centigrade thermometer when a Farenheit thermometer reads 212?
+100
146
A protein compound that acts as a biological catalyst in chemical reactions.
Enzyme
147
The chemical symbol for potassium
K
148
What are quaternary ammonium compounds used for in embalming fluids?
Disinfectants
149
The type of hydrocarbon in which the carbon atoms are linked together by double bonds.
Alkenes
150
Which of the following is NOT used as a humectant in embalming fluids?
* Lanolin
* Sorbitol
* Glycerol
* Sodium citrate
Sodium Citrate
151
The organic compounds in which a hydrogen atom is replaced by an atom of an element in the Halogen family.
Halides
152
Which of the following is characteristic of organic compounds?
* Their molecular structure is complex
* Their chemical reactions are immediate
* Their molecules contain relatively few atoms
* The molecular weight is relatively small
Their Molecular Structure is Complex
153
The building blocks of proteins, which are organic acids containing nitrogen.
Amino Acids
154
Deamination and decarboxylation occur simultaneously during:
Putrefaction
155
An acid plus a base will react to give water and:
A Salt
156
Embalming prevents the decomposition of:
Proteins
157
Chemistry is the study of:
* The composition of matter
* Elements, compounds, and mixtures
* The changes that matter undergoes
* All of these
All of These
158
Which of the following can be defined as a group of atoms chemically combined and having a neutral charge?
* Radicals
* Mixtures
* Compounds
* Isotopes
Compounds
159
The simplest forms of matter.
Elements
160
Which of these is NOT a property of organic amines?
* They have a pleasant odor
* They have a disagreeable odor
* They are the by-products of the decomposition of proteins
* They contain amino groups
They Have a Pleasant Odor
161
Fluorine and iodine are realted to:
Bromine
162
The charge of an atom that is determined by the number of electrons lost, gained, or shared in a chemical reaction.
The Oxidation Number
163
The standard unit of volume in the metric system.
Liter
164
What is the atomic symbol for iron?
Fe
165
Isotopes differ on the basis of:
* Valence
* Atomic number
* Crystalline shape
* Atomic weight
Atomic Weight
166
What is the atomic symbol for Calcium?
Ca
167
The saponification of fatty acids in the dead human body produces:
Adipocere
168
What type of alcohol is produced by the attachment of the hydroxyl group to a carbon atom that is joined directly to two other carbon atoms in the chain?
Secondary Alcohol
169
A solution created with water as the solvent is said to be:
Aqueous
170
The carbon to carbon bond in an organic compound.
A Covalent Bond
171
In a solution, the substance which exists in the smaller amount.
Solute
172
A diagram that shows the arrangement of the atoms in a compound.
A Structural Formula
173
In a solution, the substance which exists in the greater amount.
Solvent
174
Which of the following pairs of elements are present in a hydrocarbon compound?
* Hydrogen and Carbon
* Hydrogen and Hydroxide
* Carbon and Oxygen
* Carbon and Nitrogen
Hydrogen and Carbon
175
A solution containing a relatively small amount of solute.
Dilute
176
Which of the following is an example of a saturated hydrocarbon compound?
* Ethylene
* Ethane
* Ethyne
* Ethanol
Ethane
(The -ane indicates that this is an alkane, which is always saturated).
177
A solution containing a relatively large amount of solute.
Concentrated
178
Which of the following is an example of an unsaturated hydrocarbon compound?
* Methane
* Ethane
* Ethene
* Glucose
Ethene
| (Alkenes are unsaturated)
179
A solution containing all the solute it can hold under ordinary conditions.
Saturated
180
Another name for methyl alcohol.
Wood Alcohol
181
The factors which determine whether conditions are ordinary for the solution.
Temperature and Pressure
182
Which of the following is an example of a monohydroxy alcohol?
* Ethanol
* Glycerol
* Ethylene glycol
* Methanal
Ethanol
183
A solution which contains more of the solute than it can hold uner ordinary conditions.
Supersaturated
184
Which of the following is an example of a dialdehyde compound?
* Methanal
* Acetaldehyde
* Formaldehyde
* Glutaraldehyde
Glutaraldehyde
185
A solution containing less solute than it could hold under ordinary conditions.
Unsaturated
186
A room temperature, formaldehyde is:
* A gas
* A liquid
* A solid
* An acid
A Gas
187
The type of solution which would result in the swelling and bursting of a blood cell.
Hypotonic
188
Another name for methanoic acid.
Formic Acid
189
The type of solution which would result in the shrinking or shriveling of a blood cell.
Hypertonic Solution
190
Which of the following is an example of a polyhydroxy alcohol?
* Methanol
* Ethanol
* Glyoxal
* Sorbitol
Sorbitol
191
The type of solution which would cause no appreciable change in the size or condition of a blood cell placed in it.
Isotonic
192
Organic hydroxide compounds are better known as:
* Alcohols
* Aldehydes
* Acids
* Acetone
Alcohols
193
The process by which particles of a single solute move from an area of higher concentration to n area of lower concentration.
Diffusion
194
What substance is produced by the dehydration of an organic acid and an alcohol?
Ester
195
The process used to separate colloidal solutes from crystalloidal solutes.
Dialysis
196
What type of organic substances are described as derivatives of ammonia?
Amines
197
The process by which the solvent of a solution moves through a semipermeable membrane from a solution of lower concentration to one of higher concentration.
Osmosis
198
Which of the following is described as an organic acid that contains nitrogen?
* Nitric acid
* Nitrous acid
* Amino acid
* Fatty acid
Amino Acid
199
Formaldehyde is produced by the catalytic oxidation of:
* methanol
* ethanol
* propanol
* butanol
Methanol
200
The capacity of a given solute to disolve in a given solvent.
Solubility
201
Which of the following is the simplest of the hydrocarbon compounds?
* Methane
* Ethane
* Propane
* Butane
Methane
202
Which of the following will not have any effect on the solubility of a given solvent?
* Capacity of the container
* Temperature and pressure on the solvent
* Agitation of the solvent
* Basic nature of the solvent
Capacity of the Container
203
The oxidation of formaldehyde forms:
* Lactic acid
* Stearic acid
* Formic acid
* Acetic acid
Formic Acid
204
The usual manner of chemical union between inorganic compounds.
Non-Metals Gain Electrons, Metals Lose Electrons
205
The abbreviated expression representing a compound.
A Formula
206
The valance electrons affecting metallic and non-metallic compounds are located here.
Outer Orbital Ring
207
An object with a specific gravity of less than one, when placed in water, will:
* Float
* Sink
* Dissolve
* Evaporate
Float
208
A metallic element becomes electrically charged by:
* Radioactivity
* Giving up an electron
* Receiving an electron
* Electrolysis
Giving up an Electron
209
At room temperature, paraformaldehyde is in the:
* Gaseous state
* Solid state
* Liquid state
* Molecular state
Solid State
210
A non-metallic element becomes electrically charged by:
* Radioactivity
* Coming in contact with a dry cell unit
* Giving up an electron
* Receiving an electron
Receiving an Electron
211
Which of the following statements is FALSE concerning carbon?
* It is present in water molecules
* It forms covalent bonds with other substances
* It forms organic compounds
* It is a fundamental element in living things.
It is Present in Water Molecules
212
The manner in which most metals and non-metals unite chemically.
Electron Transfer
213
Which of the following is classified as an alkane?
* Formaldehyde
* Ethane
* Acetic acid
* Acetone
Ethane
214
The outer orbital ring of metallic and non-metallic elements will contain the:
* Protons
* Valence electrons
* Valance protons
* Neutrons
Valance Electrons
215
Which of the following is an aromatic substance?
* Phenol
* Formaldehyde
* Esters
* Ethers
Phenol
216
The most abundant compound known in inorganic chemistry.
Water
217
Which of the following is classified as an alkyne?
* Ethane
* Ethene
* Ethyne
* Ethanoate
Ethyne
218
In changing Centigrade to Fahrenheit, the conversion fraction to be used is:
* 5/9
* 9/5
* 2 1/2
* 3/7
9/5
219
Which of the following is classified as a halide compound?
* Carbon tetrachloride
* Isopropyl alcohol
* Carbon dioxide
* Carbolic acid
Carbon Tetrachloride
220
The type of hardness which could be removed by boiling.
Temporary Hardness
221
Which of the following is classified as a ketone?
* Propane
* Propanol
* Propanone
* Propanate
Propanone
222
In the compound water, hardness is caused by:
* Radioactivity
* Non-metallic residue
* Absense of metallic salts
* Presence of metallic salts
Presence of Metallic Salts
223
Which of the following is NOT an organic compound?
* Carbon tetrachloride
* Paradichlorobenzene
* Acetone
* Sodium chloride
Sodium Chloride
224
Water will combine chemically with certain compounds to form crystalline compounds known as:
* hydroxides
* hydrates
* ketones
* esters
Hydrates
225
The partial oxidation of a primary alcohol forms this.
Aldehyde
226
Hydrates can easily be broken up to form anhydrous compounds by:
* Freezing
* Agitation
* Radioactivity
* Heating
Heating
227
Hg is the atomic symbol for this element.
Mercury
228
The significance of hard water to the embalmer is that the salts that cause hardness in water also:
* Dilute embalming fluid
* Cause autolysis to take place
* Cause blood clotting
* Cause rapid dehydration
Cause Blood Clotting
229
Which of the following is NOT true about formaldehyde?
* It is produced by the oxidation of methanol
* It can be oxidized into methanol
* It is a colorless gas at room temperature
* It is soluble in water
It Can be Oxidized Into Methanol
230
The name given to the chemical reaction in which oxygen combines with another substance.
Oxidation
231
Organic compounds containing a benzene ring.
Aromatic Compounds
232
The name given to the chemical reaction which involves the removal of oxygen from an inorganic substance.
Reduction
233
Which of the following is a property of alkane compounds?
* They are saturated hydrocarbon compounds
* They are unsaturated hydrocarbon compounds
* They contain equal numbers of carbon and hydrogen atoms
* They contain oxygen
They are Saturated Hydrocarbon Compounds
234
The chemical reactions which involve reduction reactions are always accompanied by:
* Loss of heat
* Oxidation reactions
* Release of H2
* creation of heat
Oxidation Reactions
235
Hydrocarbon compounds that contain at least one double or triple bond between two adjacent carbon atoms.
Unsaturated
236
Oxidation reactions and reduction reactions always:
* Release free H2
* Occur in the same reaction
* Require a catalyst
* Exist in separate reactions
Occur in the Same Reaction
237
An alcohol with a single hydroxyl unit attached to an end carbon atom.
Primary Alcohol
238
Which of the following statements most accurately states a basic fact about oxidation and reduction reactions?
* They always create acids
* They always create bases
* They occur only when acids neutralize bases
* One cannot take place without the other
One Cannot Occur Without the Other
239
A dehydration reaction between two alcohols will form:
* an ester
* an ether
* an acid
* an amine
Ether
240
Chemical reactions involving both oxidation and reduction reactions are someties referred to as:
* ox-red reactions
* neutralization reactions
* ionization reactions
* redox reactions
Redox Reactions
241
How many pairs of electrons are shared betwen two adjacent carbon atoms in an alkyne compound?
Three
242
The formula NH3 designates this compound.
Ammonia
243
What is the basic unit of all aromatic compounds?
Benzene
244
NH3 has significance for the embalmer because it:
* Is a product of protein decomposition
* Is a product of carbohydrate decomposition
* Is a product of lipid decomposition
* Is capable of increasing fluid index
Is a Product of Protein Decomposition
245
What type of a compound is hemoglobin?
Protein
246
Electrolytes are substances which, in solution:
* Release negative ions only
* Form bases
* Release positive ions only
* Release both positive and negative ions
Release both negative and positive ions
247
Glycogen is:
* A carbohydrate
* A protein
* A lipid
* An enzyme
A Carbohydrate
248
Substances which release both positively and negatively charged ions when in solution.
Electrolytes
249
How many carbon atoms are present in a hexone monosaccharide compound?
Six
250
Substances which would release no free ions in solution.
Non-Electrolytes
251
Proteins are:
* waxes
* oils
* amphoteric
* inorganic
Amphoteric
252
Most acids, bases, and salts, when in solution, make very good:
* non-metallic crystalloids
* Non-electrolytes
* Solvents
* Electrolytes
Electrolytes
253
Which of the following is mainly affected by putrefaction?
* Carbohydrates
* Lipids
* Starches
* Proteins
Proteins
254
Esters of glycerol and fatty acids are:
* acidic
* fats
* amino acids
* buters
Fats
255
Substances which ionize in solution to produce H ions.
Acids
256
The by-products of the hydrolysis of fats.
Fatty Acids and Glycerol
257
Substances which ionize in solution to produce OH ions.
Bases
258
Which of the following describes protein molecules?
* Many monosaccharides linked together
* Many amino acids linked together
* Many ketones linked together
* Many fatty acids linked together
Many Amino Acids Linked Together
259
For a substance to be classified as an electrolyte, it must:
* Contain both an acid and a base
* Conduct electricity
* Release only H ions
* Be chemically neutral
Conduct Electricity
260
Which division of chemistry deals specifically with the products used and produced by living things?
Biochemistry
261
A salt serving as an electrolyte would release
* metallic ions and ions of non-metals or non-metallic radicals
* Only sodium ions
* Only chlorine ions
* only sulfate ions
Metallic Ions and Ions of Non-Metals or Non-Metallic Radicals
262
The polyatomic ion of hypochlorite is composed of chlorine and
* Oxygen
* Hydrogen
* Carbon
* Nitrogen
Oxygen
263
Those ions in a solution which are positively charged.
Cations
264
A carbohydrate molecule that contains an aldehyde group.
Aldose
265
Those ions in a solution which are negatively charged.
Anions
266
The complete oxidation of carbohydrates produces:
* Monosaccharides
* Carbon dioxide and fatty acids
* Carbon dioxide and water
* Water and alcohol
Carbon Dioxide and Water
267
The system devised to measure Hydrogen ion concentration.
pH System
268
The complete oxidation of lipids produces
* glycerol and fatty acids
* carbon dioxide and fatty acids
* glycerol and water
* carbon dioxide and water
Carbon Dioxide and Water
269
The pH system is so devised that an even balance of H and OH ions would produce a reading of
* 14
* 0
* 7.4
* 7.0
7.0
270
Which of these substances is NOT derived from the decomposition of proteins?
* Carbon monoxide
* Cadaverine
* Putrescine
* Ammonia
Carbon Monoxide
271
Readings of 6.9 and below on the pH scale would indicate:
Acids
272
Which of the following are always present in carbohydrates?
* C,H,O
* C,H,O,N
* Ca,H,O
* C,H,O,N,P,S
C,H,O
273
Readings of 7.1 and above on the pH scale would indicate:
Bases
274
The final hydrolytic products of polysaccharides are:
* Disaccharides
* Starches
* Monosaccharides
* Enzymes
Monosaccharides
275
The pH readings of normal blood.
7.3 to 7.4
276
The removal of the amino group from an amino acid.
Deamination
277
A substance which differentiates between acid and base solutions.
An Indicator
278
The complete oxidation of proteins produces:
* carbon dioxide, water and urea
* amino acids
* monosaccharides
* fatty acids
Carbon Dioxide, Water and Urea
279
The paper most commonly used as an indicator.
Litmus Paper
280
What property is exhibited by colloidal substances which allows them to absorb large quantities of water?
Imbibition
281
Blue litmus paper turning red would indicate:
Acid
282
The substance that an enzyme acts upon.
Substrate
283
Blue litmus paper placed in solution and showing no color change would indicate:
Base
284
Organic compounds held together by peptide bonds.
Proteins
285
Red litmus paper placed in solution and showing no color change would indicate:
Acid
286
Which of the following would NOT be a factor influencing diffusion?
* The presence of light
* The temperature of the solvent
* The concentration of the solute
* The amount of agitation of the solvent
The Presence of Light
287
Red litmus paper showing a color change to blue indicates:
Base
288
Which of the following are esters?
* Proteins
* Lipids
* Carbohydrates
* Alcohols
Lipids
289
With both red and blue litmus paper placed in the same solution, and neither showing any color change, this would indicate:
Neutral Solution
290
The removal of water from a compound is:
Dehydration
291
The chemical reaction between an acid and base is known as:
Neutralization
292
In a neutralization reaction, the reactants are:
* salt and water
* metallic salts and non-metallic oxides
* acids and bases
* non-metallic salts and metallic oxides
Acids and Bases
293
Which of these describes the process of autolysis?
* The self digestion of a cell
* The locomotion method of a cell
* The metabolic method of a cell
* The storage capacity of a cell
The Self Digestion of a Cell
294
The products of neutralization are:
* Salt and water
* Metallic salts and non-metallic oxides
* Acids and bases
* Hydrides and phosphates
Salt and Water
295
Which of these compounds contain the ammonium raidical?
* Ternaries
* Quaternaries
* Secondaries
* Primaries
Quaternaries
296
In neutralization, the H ions and the OH ions would:
* repel each other
* Attract each other
* form water
* both b and c
Both b and c
297
Which embalming fluids generally have a higher index than arterial fluids?
* Supplemental fluids
* Modifying agents
* Cavity fluids
* Surfactants
Cavity Fluids
298
In neutralization, the negative ions of the acid and the positive ions of the base would form:
* water
* salt
* anhydrous oxide
* hydrate
Salt
299
What type of substance is lanolin?
Humectant
300
Surfactants are also referred to as:
Wetting Agents
301
The atmosphere in which we live is
* a compound
* composed of only one chemical element
* a solution
* a mixture
A Mixture
302
Bases
1. taste sour
2. yield hydroxide ions upon ionization
3. are proton acceptors
4. have a pH of 0-7
Two and Three (Yield hydroxide ions upon ionization, are proton acceptors)
303
What are the cheif components of air?
* Compounds of oxygen and nitrogen
* The elements oxygen and nitrogen
* Primarily oxygen and sodium
* Primarily hydrogen and oxygen
The Elements Oxygen and Nitrogen
304
When ammonia combines with formaldehyde based substances, it forms a neutral compound known as:
* Urotropin
* Peroxide
* Coagulate
* Nitrogen
Urotropin
305
Oxygen and nitrogen in the air are:
* Not chemically united
* Bionic molecules of the two elements
* Diatomic molecules of the two elements
* Both A and C
Both A and C (Not chemically united, diatomic molecules of the two elements)
306
Which of the following elements or type of element is important in the production of a decomposition resistant substance known as coagulate?
* Chlorine
* Oxygen
* The halogens
* Nitrogen
Nitrogen
307
Of the following, which type of compound yields hydrogen ions when in solution?
* Acids
* Bases
* Salts
* Oxides
Acids
308
Which of the following are used as humectants in the preparation room?
1. Sorbitol
2. Glycerol
3. Phenol
4. Carbinol
1 and 2 (Sorbitol and Glycerol)
309
Which of the following yield both metallic and non-metallic ions in solution?
* Acids
* Bases
* Salts
* Ethers
Salts
310
Which of the following is another name for cadaverine?
* 1,4-diaminobutane
* Putrescine
* Aminomethane
* 1,5-diaminopentane
1,5-diaminopentane
311
Which of the following would be classified as a non-electrolyte?
* Acid
* Sugar
* Base
* Esters
Sugar
312
The area of chemistry that involves all of the living processes that occur in both health and in disease.
Biochemistry
313
Because of the nature of formaldehye, which one of the following compounds is added to inhibit polymerization when formaldehyde is dissolved in water?
* Ethane
* Methane
* Methanol
* Propanol
Methanol
314
The metric prefix "kilo" means
Thousand
315
Fats supply our bodies with which of the following?
* Protection
* Reserve food supply
* Heat insulation
* All of these
All of These
316
The basic unit for weight measurement in the metric system is the:
Gram
317
When the chemical energy of a reaction is measured, the reaction will either release or absorb heat. A reaction that absorbs heat is called:
* Endothermic
* Potential
* Hot
* Exothermic
Endothermic
318
Those characteristics of a substance as it exists in nature.
Physical Properties
319
The atomic symbol for lead.
Pb
320
Another name for glucose.
Dextrose
321
What type of substance is embalming fluid?
* A compound
* A mixture
* An element
* An isotope
A Mixture
322
What happens to the rate of the diffusion of a solute through a solvent when the temperature of the environment is decreased?
* The rate will decrease
* The rate will increase
* The rate will remain the same
* The rate will alternately decrease and increase
The Rate Will Decrease
323
Which of these compounds is described as water-soluble gas with an irritating pungent odor?
* Formaldehyde
* Acetone
* Sodium chloride
* Benzene
Formaldehyde
324
Which of these compounds are considered to be inorganic?
1. Acids
2. Bases
3. Salts
4. Oxides
All of Them
325
Which of these compounds are organic in nature?
1. Hydrocarbons
2. Alcohols
3. Aldehydes
4. Ketones
All of Them
326
Which of these is a property of an organic enzyme?
1. They are temperature specific
2. They are pH specific
3. They are substrate specific
4. They are labile
All of Them
327
Which of these substances is a ternary compound?
1. Hydrochloric acid
2. Hydrosulfuric acid
3. Sulfuric acid
4. Nitric acid
3 and 4 (Sulfuric acid and Nitric acid)
