GCSE Chemistry (AQA)

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Starch & Cellulose

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Organic chemistry Synthetic and naturally occurring polymers

Starch & Cellulose

1:49 Polymers
Spec 4.7.3.4
Previous Condensation Polymerisation Next Amino acids, Polypeptides & Proteins
  • Starch and cellulose are naturally occurring polymers made by plants.
  • Polymers are molecules consisting of long chains of monomers.
  • Examples of polymers include polypeptides and DNA, which are essential for life.
  • Starch and cellulose are important natural polymers to be familiar with for exams.
  • Starch has long, complex chains of monomers, while cellulose has more organized chains.
  • Both polymers are formed from sugar monomers.
  • Sugar molecules bond together to form polymer chains.
  • Starch and cellulose are important for life and are studied in biology.
  • Starch is used by plants to store energy and is found in vegetables like corn and potatoes.
  • Our bodies convert starch to glucose for energy.
  • Cellulose is used to make plant cell walls, providing strength to leaves and plant matter.
  • The rigid structure of cellulose contributes to the strength of plant cell walls.

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