MEDIUM
AS and A Level
IMPORTANT
Earn 100
Draw the displayed formula of Kevlar using its repeat unit in square brackets and n to represent a very large number.
Important Questions on Polymerisation
MEDIUM
AS and A Level
IMPORTANT
Explain in terms of structure and intermolecular forces why Kevlar is such a strong material.
EASY
AS and A Level
IMPORTANT
Name and give the formulae of the two functional groups present in all amino acids.
MEDIUM
AS and A Level
IMPORTANT
Name an example of an amino acid with a non-polar side-chain.
MEDIUM
AS and A Level
IMPORTANT
Draw a diagram of two molecules of serine to show the formation of hydrogen bonds between the groups of the side-chain.
EASY
AS and A Level
IMPORTANT
Which one of the following shows the structural formula of the amide (or peptide) bond that links amino acid monomers together in a polypeptide or a protein?
A
B
C
D
EASY
AS and A Level
IMPORTANT
State what is meant by the term amino acid residue.
MEDIUM
AS and A Level
IMPORTANT
Draw the repeat unit of the polyester, PLA.
MEDIUM
AS and A Level
IMPORTANT
Draw the repeat unit of Terylene.
