CIE IGCSE Biology

Revision Notes

7.1.8 Enzymes in Digestion

Test Yourself

Enzymes in Digestion

Amylases

  • Amylases are produced in the mouth and the pancreas (secreted into the duodenum)
  • Amylases digest starch into smaller sugars

The digestion of starch, IGCSE & GCSE Biology revision notes

The digestion of starch

Proteases

  • Proteases are a group of enzymes that break down proteins into amino acids in the stomach and small intestine (with the enzymes in the small intestine having been produced in the pancreas)

The digestion of proteins, IGCSE & GCSE Biology revision notes

The digestion of proteins

Lipases

  • Lipase enzymes are produced in the pancreas and secreted into the duodenum
  • They digest lipids into fatty acids and glycerol

The digestion of lipids, IGCSE & GCSE Biology revision notes

The digestion of lipids

You've read 0 of your 0 free revision notes

Get unlimited access

to absolutely everything:

  • Downloadable PDFs
  • Unlimited Revision Notes
  • Topic Questions
  • Past Papers
  • Model Answers
  • Videos (Maths and Science)

Join the 80,663 Students that ❤️ Save My Exams

the (exam) results speak for themselves:

Did this page help you?

Lára

Author: Lára

Lára graduated from Oxford University in Biological Sciences and has now been a science tutor working in the UK for several years. Lára has a particular interest in the area of infectious disease and epidemiology, and enjoys creating original educational materials that develop confidence and facilitate learning.