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MOR 243: Thanatochemistry > Final: Chapters 1 - 24 > Flashcards

Final: Chapters 1 - 24 Flashcards

1
Q

Any substance t breaks apart in aqueous solution to yield hydronium ions is a:

A

Acid

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2
Q

Salts of citric acid are no longer used in embalming fluids because:

A

They tend to increase coagulation in the presence of certain bacteria

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3
Q

Gases take on the shape of

A

Their container

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4
Q

The atomic number is equal to the number of

A

Protons

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5
Q

Which of the following is a physical change?

  • Decomposition of human remains
  • Burning paper
  • Melting ice
  • Reacting sodium with chlorine
A

Melting ice

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6
Q

Any substance that accepts a pair of electrons is a:

A

Acid

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7
Q

The atomic mass is equal to:

A

The number of protons plus neutrons

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8
Q

What is an example of a chelate?

A

Salts of EDTA

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9
Q

Amino acids are the building blocks of:

A

Proteins

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10
Q

Methanol is used in embalming fluids as a:

A

Antipolymerizing agent

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11
Q

A substance that speeds up a chemical reaction yet appears unchanged from among the products of the reaction is a:

A

Enzyme

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12
Q

The temperature at which a substance changes from the liquid state to the solid state

A

Freezing point

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13
Q

What radiation is most damaging to human tissue

A

Alpha radiation

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14
Q

Advanced decomposition:

A

Increases formaldehyde demand

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15
Q

What are organic bases?

A

Amines

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16
Q

Formaldehyde reacts with proteins by:

A
  • Cross-linking peptide linkages
  • Cross-linking the imide groups
  • Cross-linking the amino group
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17
Q

Supersaturated solution

A

Contains more solute than can be held under normal conditions

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18
Q

Hemoglobin contains how many subunits

A

4

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19
Q

Li + Cl = LiCl is an example of a:

A

Synthesis

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20
Q

What is a pure substance?

A
  • Carbon
  • Carbon dioxide
  • Oxygen
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21
Q

Putrefaction involves:

A

Decarboxylation

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22
Q

The general formula for an alcohol is:

A

ROH

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23
Q

What is used as supplementary germicides in embalming fluids?

A

Quaternary ammonium salts

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24
Q

What can influence the stability of embalming fluids?

A
  • Temperature
  • Time
  • pH
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25
A symbol is an abbreviation for:
Element
26
A tincture is a solution of alcohol and:
Iodine
27
NH4+ is called:
Ammonium
28
How many carbons would the compound propane contain?
3
29
The study of certain carbon containing compounds
Organic chemistry
30
Paraform is used in:
Solid autopsy compounds
31
When embalming with glutaraldehyde a molecule of water is removed at the site of every peptide linkage. (T/F)
False
32
Formaldehyde can be produced from the partial oxidation of:
Methanol
33
Formaldehyde forms urotropin when it reacts with
Bases
34
Rigor mortis occurs because:
The supply of ATP has been used up
35
In Charles' Law, if the volume decreases then the _____ must decrease:
Temperature
36
A compound that can act as both an acid and a base is said to be:
Amphoteric
37
Amines:
Are intermediate products of decomposition
38
Nitrogen has a combining capacity of
3
39
Alkynes are:
Unsaturated
40
A compound in which there is a chemical union between water and the molecules of certain substances is a:
Hydrate
41
Isotonic solution:
Two solutions of equal concentration
42
What is an example of a polyatomic ion?
HCO3-
43
Lipids are:
Not cross-linked by formaldehyde
44
When naming alkynes the ending is always:
yne
45
Energy of motion is:
Kinetic energy
46
The addition of hydrogen to a substance is one definition for:
Reduction
47
The letter C is the symbol for which element?
Carbon
48
The standard unit of measurement for length is the:
Meter
49
Index is defined as:
The number of grams of pure formaldehyde gas dissolved in 100 milliliters of solution
50
Inactive precursors of enzymes are called:
Proenzymes
51
Mercaptans are:
Similar to alcohols but contain S instead of O
52
Water is often used as a _____ in arterial fluids
Vehicle
53
Any substance that donates a proton is a:
Acid
54
In Boyle's Law, if the pressure decreases then the volume must:
Increase
55
The boiling point of a substance is considered to be a:
Physical property
56
The prefix centi means:
1/100
57
The standard unit of measurement for heat is the:
calorie
58
The anaerobic decomposition of proteins brought about by the action of enzymes
Putrefaction
59
The polymer that formaldehyde forms is called:
Paraformaldehyde
60
An ion is a:
Charged particle
61
An endothermic reaction is one in which heat is:
Absorbed
62
Dilute solution:
Small amount of solute in relation to solvent
63
Alkanes are characterized by:
Single bonds
64
Formaldehyde is a:
Gas
65
36 ATP's are gained from the _____ of one glucose molecule
Oxidation
66
The half-life of a substance is:
The amount of time that it takes for half of the initial amount of radiation to decay
67
A(n) _____ is an abbreviation for a chemical change
Equation
68
A compound that protects a solution against pH changes is a:
Buffer
69
A type of inhibition of enzyme activity in which the inhibitor competes with the normal substrate for the active site of the enzyme
Competitive inhibition
70
The compound on which an enzyme works is the definition of:
Substrate
71
How many types of beta radiation are there?
2
72
An example of a humectant used in embalming fluids
Glycerin
73
Esters are used as _____ in embalming fluids
Reodorants
74
If a compound contains the functional group C=O then it is:
* Ketone * Aldehyde * Carboxylic acid
75
Proteins that have subunits have what type of structure?
Quaternary
76
The process of boiling fats or oils with aqueous alkali is:
Saponification
77
The conversion of an atom of one element into an atom of another is:
Transmutation
78
A nonprotein substance that is necessary for the function of some enzymes is called:
Cofactor
79
An alkane with two carbons would be called:
Ethane
80
Complete oxidation of any organic compound produces:
* Carbon dioxide | * Water
81
Hydrolysis of a monosaccharide produces:
Monosaccharides cannot be hydrolyzed
82
The process where a solid goes directly to the gaseous state without going through a liquid state is called:
Sublimation
83
Eosin is a type of:
Dye
84
In a very basic solution formaldehyde will:
Decompose
85
Concentrated solution:
Greater amount of solute in relation to solvent
86
A pH of 8 indicates a:
Basic solution
87
Substances composed of two or more elements chemically united in a definite proportion by mass
Compounds
88
The elements in group VIIA (chlorine, bromine, iodine...) are called:
Halogens
89
Covalent bonds are due to:
An equal sharing of electrons between atoms
90
Unsaturated solution:
Not yet saturated
91
What type of radiation travels as a wave?
Gamma
92
Adipocere occurs when a body comes in contact with:
Basic conditions
93
An aqueous solution containing 40% HCHO gas by volume
Formalin
94
An electron has a charge of:
-1
95
Substances that give up their water of crystallization to the surrounding air are:
Efflorescent
96
The removal of electrons from a substance is one definition for:
Oxidation
97
A mixture of two mutually insoluble substances, such as dirt and water, with the dirt being held in suspension by a third substance is a:
Emulsion
98
Surfactants are used in embalming fluids to:
Reduce surface tension
99
A blood cell placed in a hypotonic solution will:
Burst
100
Density can be defined mathematically as:
D = M/V

MOR 243: Thanatochemistry (38 decks)

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