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Summary A level biology year 1 notes $5.81
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  7. Unit 1 - Biological molecules

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Summary A level biology year 1 notes

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  • Course
  • Unit 1 - Biological molecules
  • Institution
  • AQA

These are my year 1 notes for A level Biology. I achieved an A* in my exam using these notes to revise. They are modelled based on the answers required to give in exam questions.

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  • November 2, 2024
  • 1
  • 2023/2024
  • Summary

Subjects

  • biology
  • a level
  • dna
  • genetics
  • antibodies
  • immune response
  • predation
  • energy
  • respiration
  • photosynthesis
  • ecosystems
  • translocation
  • transpiration
  • mass flow hypothesis
  • cohesion tension theory
  • tissue fluid
  • gen

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  • A/AS Level
  • AQA
  • A Level Biology
  • Unit 1 - Biological molecules
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Monomers and Polymers
04 September 2020 14:45

Click for a summary video on Monomers and Polymers



- Monomers- single unit/ a type of small molecule
- Polymer/ macromolecule - a type of large molecule made up of repeating monomers -
smaller sub units
- Formed in Polymerisation
- Length of chain and type of monomers affects the polymer's properties


Name of polymer General terms Specific terms/ examples
Carbohydrates Polymer- polysaccharides Ie glucose makes starch/glycogen
Monomer-
monosaccharides
DNA Polymer- polynucleotide Nucleotides make DNA (double h
Monomer- mononucleotide structure)
Proteins / Polymer - polypeptides/protein
(polypeptides) Monomer- amino acids
Lipids / Monomers- Fatty acids and glyce



Bonds between monomers form by condensation reactions where water is produced as
both monomers required hydroxyl groups
Polymers are broken by hydrolysis- water added to polymer - bonds are broken
Both reactions are opposites of each other

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