FSE2930 Prof. Review Midterm exam with complete solution.
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Course
FSE 2930
Institution
FSE 2930
List some examples of vehicles used in embalming fluid.
Water, Alcohol
Those chemicals which are used to make or destroy the odors of the decomposing body
Deodorants
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FSE2930 Prof. Review Midterm exam with
complete solution
List some examples of vehicles used in embalming fluid. - ANSWER- Water,
Alcohol
Those chemicals which are used to make or destroy the odors of the
decomposing body - ANSWER- Deodorants
List some examples of humectants. - ANSWER- Glycerol a.k.a. Glycerin, Sorbitol,
Glycols, Lanolin
Those chemicals in embalming fluid which will reduce the molecular cohesion of
a liquid - ANSWER- Surfactant
List the components of solid autopsy chemical. - ANSWER- Preservative,
Dehydrating agent, Filler
List the fillers that are added to autopsy chemicals. - ANSWER- Perlite,
vermiculite and cellulose (saw dust)
Those embalming fluids which are intended to be injected into the cavities of the
body following aspiration - ANSWER- Cavity fluid
List the 5 factors that affect the shelf-life of an embalming chemical. - ANSWER-
1. Temperature extremes 2. Storage length 3. Amount of antipolymerization
agents 4. pH of the solution 5. Exposure to light
9. The substance carbon tetrachloride is used in embalming as a(n) - ANSWER-
Organic solvent
,Differentiate between exothermic and endothermic processes. - ANSWER-
Exothermic processes give off heat. Endothermic processes absorb heat from the
surroundings.
The antipolymerization agent for formaldehyde - ANSWER- Methanol
List and give an example from each of the three families that are used as
disinfectants and preservatives. - ANSWER- Aldehydes - Examples:
Formaldehyde and Glutaraldehyde, Alcohols - Examples: Methanol, Ethanol and
Propanol, Coal Tar Derivatives - Examples: Phenol and Cresol
Those chemicals in arterial fluid that inactivate the saprophytic bacteria and
inhibit further decomposition - ANSWER- Preservatives
Those lipids that contain 3 fatty acids - ANSWER- Triglycerides
Define Isomers. - ANSWER- Two or more substances that consist of the same
molecular composition but have a different arrangement.
The common use of ethylene glycol - ANSWER- Antifreeze
List examples of a chemical change relative to funeral services. - ANSWER-
Embalming, Cremation, Decomposition
Those substances which are composed of 2 or more elements physically
combined, though not chemically combined - ANSWER- Mixtures
Other than being a good humectant, how is glycerol used in the arterial injection?
- ANSWER- It serves to facilitate the solubility and the diffusion of the
formaldehyde in the embalming operation.
An ion composed of atoms of 2 or more elements - ANSWER- Polyatomic ions
Another name for Phenol - ANSWER- Carbolic acid
Give an example of Rapid Oxidation. - ANSWER- Burning of wood or paper
List some physical characteristics of Formaldehyde - ANSWER- Colorless gas
with pungent odor
,List the substance name for formaldehyde in each of the following three states of
Matter (Liquid, Solid, Gas). - ANSWER- 1. Formalin 2. Paraformaldehyde 3.
Formaldehyde
Formalin is what percentage formaldehyde by weight? by volume? - ANSWER- By
weight 37% By volume 40%
Differentiate between Hypotonic and Hypertonic solutions. - ANSWER- Hypotonic
Solutions contains less solute and a Hypertonic solution contains more solute.
The saponification of human fats will produce - ANSWER- Grave wax a.k.a.
Adipocere
Are proteins crystalloid or colloid? - ANSWER- Crystalloid
What happens to the body's enzymes upon death? - ANSWER- Since there is no
additional substrate coming into the body, it will act upon the body's tissue.
Formaldehyde has an affinity for this element - ANSWER- Nitrogen
Paraformaldehyde is used in embalming as - ANSWER- a treatment for viscera or
open cavities of autopsied bodies
Acetone is used in embalming as - ANSWER- Organic Solvent
What part of the embalming process will neutralize endoenzymes? - ANSWER-
Arterial Injection
List the 5 actions of preservatives. - ANSWER- 1. Neutralize protein and amino
acids 2. Inhibit further decomposition 3. Inactivate enzymes 4. Kill
Microorganisms 5. Destroy odors of decomposition
The solid form of protein - ANSWER- Coagulate
What happens to a protein coagulate if the body contains excessive amounts of
water following the embalming? - ANSWER- The coagulate can return back to the
liquid form of protein which is more susceptible to decomposition
List the characteristics of Formaldehyde. - ANSWER- Colorless, water-soluble
gas with a pungent, irritating odor
, The liquid compound form of formaldehyde - ANSWER- Formalin
List some examples of Disinfectants. - ANSWER- Gluturaldehyde, Quaternary
Ammonium compound
The slow oxidation of organic matter caused by aerobic bacteria - ANSWER-
Putrefaction
When Ammonia and Formaldehyde mix, what is produced? - ANSWER- Urotropin
Differentiate between an aqueous solution and a Tincture. - ANSWER- An
Aqueous solution has water as its solvent. Tincture has alcohol as its solvent.
Which type of solution is electrolytic (Organic or Inorganic)? - ANSWER-
Inorganic
Another name for a True solution - ANSWER- Crystalloidal solution
Methyl salicylate is used in embalming as. - ANSWER- Perfuming agent
List the characteristics of a colloidal solution. - ANSWER- Contain a colloid
solute, Appear cloudy or translucent, Will not settle out over time, Cannot be
separated into various components by filtration
List and describe the two diamines relating to funeral services. - ANSWER-
Putrescine and Cadaverine, Both or decomposing human protein
Of the following pairs of numbers, tell which number of the pair is more dilute. 1.
18% or 24% 2. 40% or 35% 3. 45% or 29% - ANSWER- 1. 18% 2. 35% 3. 29%
Another name for Glucose - ANSWER- Dextrose, Grape Sugar, Blood Sugar
List the factors that affect the rate of diffusion of a solution. - ANSWER-
Temperature - increased temperature speeds up diffusion; Pressure - increased
pressure speeds up diffusion; Concentration - increased concentration speeds
up diffusion; Agitation - increased agitation speeds up diffusion; Size of
molecules - increased size of molecules slows down diffusion
Define the process of crenation. - ANSWER- The shrinking of red blood cells
when placed in a hypertonic solution
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