Biomedical Engineering – Final Exam – Practice Questions and
Answers (Revision Material)
a large molecule that consists of many repeating structural units is called a - ANS ✔✔polymer
each unit molecule that comes together to form a polymer is called a - ANS ✔✔monomer
the main advantage associated with ceramics compared to metals is - ANS ✔✔corrosion
resistance
what all polymers have in common is the type of bond which holds their monomers together.
what type of bond is this? - ANS ✔✔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? - ANS ✔✔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? - ANS
✔✔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. - ANS
✔✔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? - ANS
✔✔metallic bonds
Which of the following structures represents a polyamide? - ANS ✔✔[-NH-CO-R-]
Which of the following structures represents an anhydride? - ANS ✔✔R-COOCOR
GPC is one of the methods to measure molecular weight of the polymers. define the acronym,
GPC. - ANS ✔✔Gel Permeation Chromatography
In general, metals are more corrosion-resistant than ceramics - ANS ✔✔False, metals are not
more corrosion resistant
amorphous polymers have ordered chain configuration - ANS ✔✔false, amorphous polymers
don't have ordered chains
hydroxyapatite is the inorganic component of the bone - ANS ✔✔true, hydroxyapatite is the
inorganic part of the bone
crystalline polymers degrade faster than amorphous polymers - ANS ✔✔false, crystalline
polymers are harder to degrade than amorphous polymers
metals have high thermal and electrical conductivity - ANS ✔✔true, metals have high thermal
and electrical conductivity
ceramics mostly have ionic type of chemical bonds - ANS ✔✔true, ceramics have mostly ionic
bonds
Answers (Revision Material)
a large molecule that consists of many repeating structural units is called a - ANS ✔✔polymer
each unit molecule that comes together to form a polymer is called a - ANS ✔✔monomer
the main advantage associated with ceramics compared to metals is - ANS ✔✔corrosion
resistance
what all polymers have in common is the type of bond which holds their monomers together.
what type of bond is this? - ANS ✔✔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? - ANS ✔✔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? - ANS
✔✔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. - ANS
✔✔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? - ANS
✔✔metallic bonds
Which of the following structures represents a polyamide? - ANS ✔✔[-NH-CO-R-]
Which of the following structures represents an anhydride? - ANS ✔✔R-COOCOR
GPC is one of the methods to measure molecular weight of the polymers. define the acronym,
GPC. - ANS ✔✔Gel Permeation Chromatography
In general, metals are more corrosion-resistant than ceramics - ANS ✔✔False, metals are not
more corrosion resistant
amorphous polymers have ordered chain configuration - ANS ✔✔false, amorphous polymers
don't have ordered chains
hydroxyapatite is the inorganic component of the bone - ANS ✔✔true, hydroxyapatite is the
inorganic part of the bone
crystalline polymers degrade faster than amorphous polymers - ANS ✔✔false, crystalline
polymers are harder to degrade than amorphous polymers
metals have high thermal and electrical conductivity - ANS ✔✔true, metals have high thermal
and electrical conductivity
ceramics mostly have ionic type of chemical bonds - ANS ✔✔true, ceramics have mostly ionic
bonds
