Quelpr
2 marksPolymers

CSEC Chemistry · May/June 2013 · Paper 2 · Question 3(c)(ii)

Proteins are naturally occurring polymers. The partial structure of a protein molecule is shown in Figure 3.

Draw the structure of the monomer unit that results from the acid hydrolysis of the structure shown in Figure 3.

This question uses a figure or table from the paper — you'll see it when you practise.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 3(a)Explain what is meant by the term 'cracking'.[2 marks]
  2. 3(b)(i)Draw a structural representation of glucose.[1 mark]
  3. 3(b)(ii)Use THREE units of glucose (monomer from Part (b) (i)) to show how the monomers are linked together in a partial structure of starch.[2 marks]
  4. 3(b)(iii)State the type of polymerization reaction that glucose undergoes to form starch, and the name of the family of polymers to which starch belongs.[1 mark]
  5. 3(c)(i)Describe how the structure of the protein is affected by acid hydrolysis.[2 marks]
  6. 3(d)(i)a)Identify TWO monomers that will undergo condensation polymerization[2 marks]
  7. 3(d)(i)b)Identify ONE monomer that will undergo addition polymerization.[1 mark]
  8. 3(d)(ii)State the name of the family of polymers that will be formed when monomers P and R react together.[1 mark]

More practice: the rest of this paper · more Polymers questions · all CSEC Chemistry past papers