Biomedical Engineering Final Exam || with 100% Correct
Answers.
a large molecule that consists of many repeating structural units is called a correct answers
polymer
each unit molecule that comes together to form a polymer is called a correct answers monomer
the main advantage associated with ceramics compared to metals is correct answers corrosion
resistance
what all polymers have in common is the type of bond which holds their monomers together.
what type of bond is this? correct answers a covalent bond
there are two types of polymerization, the first being addition, which of these is a requirement of
monomers in order to undergo addition polymerization? correct answers the presence of a carbon
to carbon double bond
as mentioned earlier, there are two main types of polymerization, the second of which is
condensation polymerization. during a condensation polymerization reaction, many monomers
join together. what is lost when two monomers join together via a condensation reaction? correct
answers water
proteins (polypeptides) and carbohydrates (polysaccharides) are both polymers. true or false, the
third of the major biological molecules, the lipids, cannot be described as polymers. correct
answers true
still on biological molecules, the incredible length of these polymers (sometimes tens of
thousands of monomers) often results in the formation of a tertiary, 3-D structure. an example of
this is in globular proteins. which of these is NOT a force of attraction which usually acts
between the different sections of the polypeptide chain of a globular protein? correct answers
metallic bonds
Which of the following structures represents a polyamide? correct answers [-NH-CO-R-]
Which of the following structures represents an anhydride? correct answers R-COOCOR
GPC is one of the methods to measure molecular weight of the polymers. define the acronym,
GPC. correct answers Gel Permeation Chromatography
In general, metals are more corrosion-resistant than ceramics correct answers False, metals are
not more corrosion resistant
amorphous polymers have ordered chain configuration correct answers false, amorphous
polymers don't have ordered chains
, hydroxyapatite is the inorganic component of the bone correct answers true, hydroxyapatite is
the inorganic part of the bone
crystalline polymers degrade faster than amorphous polymers correct answers false, crystalline
polymers are harder to degrade than amorphous polymers
metals have high thermal and electrical conductivity correct answers true, metals have high
thermal and electrical conductivity
ceramics mostly have ionic type of chemical bonds correct answers true, ceramics have mostly
ionic bonds
brittle materials undergo plastic deformation prior to failure correct answers false, brittle
materials don't undergo plastic deformation
metals are usually used in the soft tissue implants due to their mechanical properties correct
answers false, metals are too hard
polyethylene is a naturally occurring polymer correct answers false, polyethylene is synthetic
hydrogen bonds are stronger than covalent correct answers false, hydrogen bonds are weak
linear polymer structure favors crystallinity correct answers true, linear polymer structure favors
crystallinity
noble metals are corrosion-resistant correct answers true, noble metals are corrosion resistant
alumina ceramic is biodegradable due to naturally occurring enzymes helping with degredation
correct answers false, alumina ceramic is not biodegradable
polymers below glass transition temperature are brittle correct answers true, polymers below
glass transition temperature are brittle
thermoset polymers become permanently hardened when heat is applied and do not soften upon
subsequent heating correct answers true, thermoset polymers set
esterase enzyme can help with the biodegradation of polymers with ester bonds correct answers
true, esterase degrades ester bonds
plasticizers are small molecules added to a polymer to increase its glass transition temperature
correct answers false, plasticizers decrease glass transition temperatures
hydrolysis is a chemical reaction is which two monomers react together with formation of a
water molecule correct answers false, hydrolysis breaks monomers
Answers.
a large molecule that consists of many repeating structural units is called a correct answers
polymer
each unit molecule that comes together to form a polymer is called a correct answers monomer
the main advantage associated with ceramics compared to metals is correct answers corrosion
resistance
what all polymers have in common is the type of bond which holds their monomers together.
what type of bond is this? correct answers a covalent bond
there are two types of polymerization, the first being addition, which of these is a requirement of
monomers in order to undergo addition polymerization? correct answers the presence of a carbon
to carbon double bond
as mentioned earlier, there are two main types of polymerization, the second of which is
condensation polymerization. during a condensation polymerization reaction, many monomers
join together. what is lost when two monomers join together via a condensation reaction? correct
answers water
proteins (polypeptides) and carbohydrates (polysaccharides) are both polymers. true or false, the
third of the major biological molecules, the lipids, cannot be described as polymers. correct
answers true
still on biological molecules, the incredible length of these polymers (sometimes tens of
thousands of monomers) often results in the formation of a tertiary, 3-D structure. an example of
this is in globular proteins. which of these is NOT a force of attraction which usually acts
between the different sections of the polypeptide chain of a globular protein? correct answers
metallic bonds
Which of the following structures represents a polyamide? correct answers [-NH-CO-R-]
Which of the following structures represents an anhydride? correct answers R-COOCOR
GPC is one of the methods to measure molecular weight of the polymers. define the acronym,
GPC. correct answers Gel Permeation Chromatography
In general, metals are more corrosion-resistant than ceramics correct answers False, metals are
not more corrosion resistant
amorphous polymers have ordered chain configuration correct answers false, amorphous
polymers don't have ordered chains
, hydroxyapatite is the inorganic component of the bone correct answers true, hydroxyapatite is
the inorganic part of the bone
crystalline polymers degrade faster than amorphous polymers correct answers false, crystalline
polymers are harder to degrade than amorphous polymers
metals have high thermal and electrical conductivity correct answers true, metals have high
thermal and electrical conductivity
ceramics mostly have ionic type of chemical bonds correct answers true, ceramics have mostly
ionic bonds
brittle materials undergo plastic deformation prior to failure correct answers false, brittle
materials don't undergo plastic deformation
metals are usually used in the soft tissue implants due to their mechanical properties correct
answers false, metals are too hard
polyethylene is a naturally occurring polymer correct answers false, polyethylene is synthetic
hydrogen bonds are stronger than covalent correct answers false, hydrogen bonds are weak
linear polymer structure favors crystallinity correct answers true, linear polymer structure favors
crystallinity
noble metals are corrosion-resistant correct answers true, noble metals are corrosion resistant
alumina ceramic is biodegradable due to naturally occurring enzymes helping with degredation
correct answers false, alumina ceramic is not biodegradable
polymers below glass transition temperature are brittle correct answers true, polymers below
glass transition temperature are brittle
thermoset polymers become permanently hardened when heat is applied and do not soften upon
subsequent heating correct answers true, thermoset polymers set
esterase enzyme can help with the biodegradation of polymers with ester bonds correct answers
true, esterase degrades ester bonds
plasticizers are small molecules added to a polymer to increase its glass transition temperature
correct answers false, plasticizers decrease glass transition temperatures
hydrolysis is a chemical reaction is which two monomers react together with formation of a
water molecule correct answers false, hydrolysis breaks monomers
