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A-Level Biology OCR A

Digestion Starch Broken Maltose Summarise Role Extracellular Enzymes

Starch is digested by amylase into maltose, then by maltase into glucose, which cells can absorb.

Starch is digested by amylase into maltose, and then further broken down by maltase into glucose, which cells can absorb.

Front Summarise the digestion of starch as an example of the role of extracellular enzymes.
Back Digestion of starch:
  • Starch polymers partially broken down into maltose (disaccharide) using amylase (released in saliva, produced by salivary glands and pancreas)
  • Maltose is then broken down into glucose (monosaccharide that can be absorbed by cells) using maltase (present in small intestine)

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